賽輪 Sailun - Atrezzo ZSR 高性能輪胎 High Performance Tyre

 *English version at the bottom*

係Tyrehood網上面最經濟型既輪胎, 一定會係賽輪呢個牌子.

其實(中國)賽輪已經都可以話係有名既牌子, 因為一早已經做出口係其他國家到賣. 賽輪都係其中一個, 係咁多年入面熱賣既牌子.

早幾年我地都有裝到20寸既賽輪係部Benz vito 輕型貨車到, 但當時我並冇紀錄底任何資料. 最近買左部二手車本身諗住用黎寫program debug 用, 就順道裝埋賽輪又寫下打手報告.

Size: 225/55 R16 ZSR

Model: Sailun - Atrezzo ZSR

Installed Year: 2021

Installed Vehicle: BMW 523i

執左部車少少野之後最近先可以行一行高速再次感覺一下ZSR.

對比之前用過, 同埋用緊既 Dunlop, 係有唔同既. 但對比原先買番黎個兩條(非中國製)既呔, 我就感覺唔到有咩唔同. (包括聲音, 咬地性能), 可能我行得唔夠快?

岩岩最近落雨即時走上高速行番轉, 係法例規定內行駛既速度, ZSR 都行得好好.

睇黎要再遲啲先試到, 再行快啲個陣既體驗. 因為最近實在太多車, 又塞車. 

越黎越多牌子進口到香港, 不少都係中國製輪胎. 但歷史都有咁上下既賽輪都有歐盟label

Source: ebay

早前出口到德國, 德國其中有名雜誌測試 ZSR 並有可觀的結果 (Auto bild approved)

https://www.sailun-tyres.eu/

再提提, EU label 係香港只作參考. 始終天氣同地都唔同. 

https://tyrehood.blogspot.com/2020/12/wrong-about-tyres.html

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Talking about the most economical tyre sold in the Tyrehood product list is undoubted the Sailun brand.

Sailun is actually a well-known brand (manufacture in China) that sold around the world. It is also one of the hot sale products chosen by customers, including private vehicle, light goods vehicle, and heavy goods vehicle.

Few years back we installed sailun R20 size on the light goods vehicle but I did not record down any data on it. This time, I got these two to install on the recently bought vehicle (in which is supposed to be used for ECU programming)

Size: 225/55 R16 ZSR

Model: Sailun - Atrezzo ZSR

Installed Year: 2021

Installed Vehicle: BMW 523i

Some issues with the recently bought vehicle that I need to DIY to replace some worn parts (T.T) so I couldn't go on highway at first. Hope there aren't any more issues after fixing. But I drive around the area and the first impression is:

 "there is difference between the dunlop that I tried before, perhaps because of the size and vehicle model, but I dun feel the difference with this Sailun ZSR and the previous tyres (not made in China) "

On a rainy day at high way, ZSR are still up to expectation within legal speed limit. 

For higher speed experience, I am still waiting for chances when there are fewer vehicles on the road. (there are just too many cars and congestion on a highway recently )

More brands imported to HK and many are Made in China. Undoubtedly sailun also had eu label standard.

Source: ebay

Sailun also exported to Germany for sale, and the ZSR was tested by one of the famous Germany magazine test. (Auto bild approved)

https://www.sailun-tyres.eu/

EU label standard is only for reference in HK. Weather and material used in HK differs from Europe afterall. 

https://tyrehood.blogspot.com/2020/12/four-tire-information-misinterpret.html

Dunlop 輪胎 - Sport Maxx 050+ 高性能輪胎 High Performance Tyre

**English version scroll to the bottom**

又係打手出黎時間

如果只係香港市場去睇, 好多人想揀高性能輪胎都會偏向揀番 (個幾個) 大牌子既輪胎. 但係 Dunlop 高性能系列入面既 SP Sport Maxx 會令人有所改觀. 特別平時有部分人成日話Dunlop 麻麻地.

幾年前 Dunlop 香港 既 Sport Maxx 050+ 做左個超級大優惠. (應該唔會再有, 我都想佢再有). 所以趁機都買左兩條自用. (又係用係 Toyota Estima)

Size: 215/55 R17
Model: Dunlop Sport Maxx 050+
Manufacture year: 2018
Installed year: 2019

Vehicle: Toyota Estima

玩左差唔多兩年. 

050+ 乾濕地, 落雨天, 咬地力, 剎車性能依然一流(有feel). 渡過四季, 瀑雨, 風球都仲好行. 

可惜唔係所有尺寸都有. R16 只有少部分, 都係R17 及以上先有得揀 Sport Maxx 050+

雖然某程度上都有少少嘈音, 但我平時開車都會聽radio 或者音樂, 所以呢方面我就唔係好覺有太大影響. 用係歐洲車到既話相信嘈音都唔會係一個問題.

其實用落真係唔錯. 都係覺得各位值得一試. 

1) 舒適: 用得高性能呔都唔會諗住想要咩舒適感.

2) 聲音: 少嘈係正常. 唔想就當然要揀 Dunlop 既靜音呔 LM705

3) 濕地: 行足 100km/h 我自己就冇問題, (行到110 我就未試過. 反而我用大陸呔我就試過). 始終載人既7人車自己都唔會開快.

4) 耐用度: 咬地既呔通常都係冇咁耐磨. 但呢對都玩左2年. 

今日050+ 玩到退役, 換左都係 Dunlop 兩條頂級性能既 Maxx RT2. 又係趁Dunlop 出優惠既時候買既  Dunlop Sport Maxx RT2. 行左轉既 first impression... 原來頂級真係有分別. 可惜冇乜人識欣賞. 唯有留番黎俾自己人玩.

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When it comes to choosing high performance tyre, people tends to go for a more well known brand in the Hong Kong market. But the high performance tyre category (SP Sport Maxx) may change your impressions on its high performance category. (I don't know why some people have a bad impression on Dunlop)

Few years back, Dunlop HK has a GREAT promotion (which I do not think it will happen again) on Sport Max 050+. I took the opportunity to buy 2 for myself and installed on the vehicle (once again, it's the Toyota Estima)

Size: 215/55 R17
Model: Dunlop Sport Maxx 050+
Manufacture year: 2018
Installed year: 2019

Vehicle: Toyota Estima

These two lasted for two years.

And they do not disappoint. The 050+ traction, cornering, and braking distance are excellent. (Tested under the legal limit on the high way, I couldnt' say I drive over 160km/h right, nah I don't.) They even went through heavy rain and typhoon. Unfortunately this product model is limited to a few sizes for R16, and more stocks for R17 and above.

If you are looking for high performance tyre, and have never tried the 050+ product before, this is one of the products that you should try it out, whether it's 2 qty, or 4 qty.

1) Comfort: You should think of comfort and high performance to be invert correlated.

2) Sound: A slight noise is normal. Otherwise you should choose Dunlop LM705

3) Raining Experience: Driving up to 100km/h has no issue for me. Never try 110 before but I did it on the China brand tyre. Afterall the 7 passenger vehicle is commonly used for more people aboard.

4) Wear:  Traction is also invert correlated to wear. Afterall these two lasted for 2 years. It is considered quite a long mileage to me

Now these 050+ is finally worn off and got to change another new pair. The Sport Maxx RT2, 215/55 R17, to replace the Maxx 050+. 

yea, the Maxx RT2  has a promotion recently for this size. After driving for a round, I realize there is really a difference between Max performance, and high performance for the Dunlop category.

OBD2 Scanning System 汽車電腦掃描

*****English version below*****

(IT 人及現時自己做緊OBD2既興趣者 既請看英文版本)

總算黎到最後一個步驟既(first) project. 用左太耐既時間去研究點寫個程式出黎. 

(skip 呢個 paragraph 如果您知咩係OBD2)

 OBD2 其實係一個方法去讀取汽車電腦. 汽車電腦係成部車既"腦", 控制, 計算, 及安排汽車既協調. 汽車電腦都會存您既行駛紀錄. 如果部車有咩問題, 汽車電腦就會發出信息令到部車既錶版燈著去提示駕駛者有關問題出現. 您都可以利用電腦接駁汽車電腦去check 個問題. 

要詳細去講解有關OBD2 同埋汽車電腦, 就咁寫幾百頁都應該唔夠. 但現時其實有好多只係for 興趣既人都自己整番個 program 去讀取汽車電腦. 

(Picture depicting the RPM and Speed of the vehicle)

現時市場上都有大量既 OBD2 汽車電腦掃描系統. 由非常之平既 HK$10 一粒, 去到非常之貴既 HK$10萬以上一部. 至於佢地各方面有咩唔同我就唔知啦. 不過我自己就試過買粒平平地既諗住玩下, 點知粒野唔岩部車用. 但最後自己都成功左寫左段code 係部車2007 Toyota Estima 拎data.

能夠成功地接駁住汽車電腦, 就能成功連繫住現時既 Tyrehood Zone 應用程式. 利用兩者就能得到汽車數據, 了解更多有關自己部車同埋自己. 就算您唔識睇呢堆data, 我都可以解釋到俾您聽. (因為我前身就係 business analyst, 直到而家都仲係)

當然 data 唔止係我想要既野 😏. OBD2 都可以用黎發出信息俾汽車電腦, 如重置汽車電腦去番原廠模式 或者係 處理好問題後熄左個錶版上既問題燈. 

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It finally comes to the end of the (first) project. Or rather, the end stage of the beginning. It took me way longer than expected to come to this stage. I am alone working on all IT projects as well as other operations. (Reminiscing about the past working with colleagues)

(skip this paragraph if you know what's it, just an introduction on OBD2 in general)

 Back to the topic on OBD2 scanning,  it serves to read the car computer data. The car computer is the brain of the vehicle that controls, calculates and works on your vehicle coordination, and store your journey along the way. If there is anything wrong with your vehicle, the car computer triggers the light (flashing or continuously on) on your car board to warn you something is wrong. You plug in a device to the car OBD2 and read what the computer is trying to tell you.

There is a lot to explain about OBD2 and car computing in a technical way. OBD2 has come to a very long journey and a lot of hobbyist are playing around with it using their vehicles. There are other discussions and arguments on the future of OBD2, but as at this moment, OBD2 can still be played around with.

(Picture depicting the RPM and Speed of the vehicle)

There are lots of OBD2 scanner device in the market. The cheaper ones (HK$10) to a very expensive one (over HK$100k above). I got no answer on what are the differences between these products, but I bought a cheap one that actually do not work on my car (ops...). Thankfully I still manage to get the code going and get what I wanted on the 2007 Toyota Estima. 

I called this the final stage of my first project, because I need to connect the "brain" of the vehicle to my existing Tyrehood Zone application. With that you get to know yourself better driving your vehicle by looking at your own data. Even if you do not know how to look at the data, I can still explain those data to you. (I was a business analyst afterall, and still doing it today)

Of course data is not the only thing I want. 😏 With OBD2, it's not just receiving data, but sending out data as well such as resetting the car computer (in the case of error code occurs). 

This project is still in a beginning stage but I am looking forward to moving in a more advanced level, and open to share this work to people who are interested in working on obd2. (only if you are developing on it). I dun see many working on it in Hong Kong, but Let's keep in touch if you are working on OBD2. Feel free to invite me if you have a community sharing too.

迫力鉗噴漆 Brake Caliper Painting (DIY)

 **English version at the bottom of the page**

今日係 OBD2 project 一大突破. Depress 左成個月解決唔到既問題終於有啲眉目. 其實呢一大突破只係暫時搵到一個新方向. 希望之後會好順利.

為左係depress 其間冇咁depress, 我決定玩左一玩噴鉗.

今次實驗又係另一樣想試下到底噴完之後可以玩到幾耐. 下圖就係幾日前岩岩噴完既效果. 暫時未見有即時啡番既現象. 睇落我自己就覺得唔錯啦. 

噴鉗就好簡單, 買噴漆, 拆左個轆出黎之後再搵野包住個迫力碟再噴就搞點.

但所需時間就要長啲啦, (因為要等一等佢乾). 我就用左3個鐘頭左右先裝番個轆. 

等多一年左右, 再上載相睇睇一年後既效果. 

待續...........

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Finally manage to get a breakthrough in OBD2 project. Over the month I am at a state of depress, almost reaching the limit, and finally manage to get a new direction to proceed. Hope it is gonna to be smooth for the rest of the steps.

During the depression period, I decide to paint the brake caliper to relax a bit. 

This will be another experiment to find out how long can the coloring last after spraying to a different colour. (image below) It is the effect of painting after a few days. (It looks pretty great to me in my opinion)

Simply take out the wheel, cover up the brake disc, and spray the caliper. That's all you need to do. 

But it is the time to let it dry that eats your time. I waited for around 3 hours and install the wheel back.

Let's wait for another year to see how it will look like.

To be continued..............

Pirelli 輪胎 - Cinturato P7 (p7c)

**English version below**

作為 F1 賽車sponsor 既 Pirelli , 俾大家既感覺都係跑車呔feel. 其實佢其中一個系列, Cinturato 係偏向行較靜及舒適既方向. 

作為一個打手.... Sorry係用家先岩, 點都要試下有好耐歷史既Cintuarto

 (感謝 Pirelli 香港總代理可以俾我試一下使用 pirelli p7c 既感覺)

安裝尺寸: 225/50 R17

安裝型號: Pirelli p7c

安裝汽車型號: Toyota Estima 

(尾呔用緊 215/55 R17 Dunlop Sport Maxx 050+, 呢個遲啲再講.)

部車原裝尺寸係用緊 215/55 R17. 但我將佢轉為 225/50 R17. 放置於前行駛. 

1) 舒適: 如果用開, 或者有用到一排高性能呔, 用p7c係feel 到個行車舒適感覺. 

2) 聲音: 睇每個人既感覺. 屋企人就覺得對呔行駛時係靜的. 我自己就唔係太感覺到, 因為我行車好鐘意聽music / radio, 

3) 濕地: 由新呔直到現在, 濕地行駛冇問題. 雨天時行駛感覺到渣既實在感. 唔係飛下飛下. 而直到現時都冇客有complaint 呢條呔

4) 耐用度: 至於耐用度.... 會唔會太耐用左少少? 估計都仲有排先可以用完呢對 p7c. 

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The feeling that some of the ppl have in Pirelli is , sporty and high performance running tyre. Actually, Cintuarto is one of the Pirelli categories that focus on comfort and silent ride.

I got to try out everything right? 

(Thanks to Pirelli HK Sole Agent for these two p7c tires experience)

Installation Size: 225/50 R17

Tyre model: Pirelli p7c

Vehicle: Toyota Estima 

(The rear is using 215/55 R17 Dunlop Sport Maxx 050+, which will be commented in the future. It's also another very nice performing tyre.)

The original size for the car is 215/55 R17 but I change it to 225/50 R17 and placed it in front.

1) Comfort: After driving high performance tyre for some time, it is easy to feel the comfort of the tyre that it gives to the driver and passenger. 

2) Sound: Due to different people sensitivity, I couldn't comment much on the tyre sound but my family members comment that it is definitely quieter than before.

3) Raining Experience: Even up till now, the tyres have no problem during (heavy) rainy season. 

4) Wear:  I dun feel like commenting about the long mileage that p7c has. The usage of p7c seems to be longer than expected. It looks like it will take some time to wear off these tyres.

呔鈴噴漆 DIY (Rim Spraying)

The  English version paragraph is after the Chinese version 

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每一次去到呢啲時間都係最辛苦既時間, 因為Year end processing 又黎了. 😭 

好在較早前手痕又想試下啲野, 唔想用咁多錢但又想改下呔鈴, 用左最簡單既做法就係噴漆啦.

(因應尺寸及呔鈴款會有所改變) 4支噴漆 (for 呢個case, 其實最好係5支).

所需時間, 我實際上分開左4日去整. Sadly 我一直冇時間一次過搞. 如果綜合應該一次過搞既話會用到4個小時至少. 

由於我係拆呔出黎噴鈴的, 所以都試左係第一次裝拆呔既情況下唔會因為車呔同呔鈴既磨擦而甩色. 當然我都幫過唔少客裝拆呔時, 發現有部分客拎左噴完既鈴黎裝呔, 一裝呔, 有一少部分呔鈴位就已經甩色. 係咪因為噴漆既問題, 定係手工既問題, 呢個我就冇data, 唔知啦.

噴完後到底可以last 幾耐呢? 其實我都唔知, 因為我都係岩岩玩左兩個月. 但我自己認為, 可以玩到至少一年既話, 其實已經好好. 您睇下出面有幾多車新買番黎既呔鈴, 可以玩到幾耐, 發現鈴面同鈴邊都花晒?

我會每隔幾個月都會繼續更新呢個post, 上載番隔一排之後既相, 睇下到底噴漆可以玩到幾耐先會甩色. 

English version below

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Every year at this period of time is the most cumbersome period due to year end processing

😭 

Earlier this year, I attempted to try something within a very small budget to change something about the car. So I decided to do some spraying to the rim, which is the easiest way to change the appearance.

(The number of spray varies according to rim size and style) I use 4 can of spray for this case. It is better to get 5 can of spray actually.

It took me four separate days to complete all the rims as I do not have much time to  do it in one go. If I were to accumulate the timing, it will probably take at least 4 hours to spray all 4 rims simultaneously.

As I dismount the tyre to spray the rim, I have tested that the spray did not fall off or diminish upon mounting the tyre (as the tyre may rub off the spray upon contact with the rim side). 

However, there were cases in which the spray indeed got rub off  slightly by the tyre upon mounting when some of our customers brought their newly painted rim to our store to install the tyres. I am unsure if it is due to the spray quality, or the work done to the rim.

How long could it last? I dun know. This thing has been with me for 2 months now, and it still looks great. In my opinion, if it last for at least a year, it worths the price and time spent. Afterall, how many cars (did you see) which have their new rims installed, got stratches at the surface and at the side?

(Two months later)

I will keep updating the post to upload the images every few months to see if there is any changes and how long could it last.

Battery - life span

"How long can a battery last"

"Is there any cheap and long lasting battery"

are two often commonly asked questions raised by most customers.

And commonly replied by most of the technicans,  "around two years", and "get a made in EU battery or made in Japan battery" 

"Average two years" results came from different suppliers in the market. 

To obtain the battery consumption data takes at least a year. It is still difficult to tell how long exactly can a battery last, and most of the time I will still say around 2 years.

But for exact situation, (For Tyrehood customers only), please find me directly for enquiry, or simply go to article section at Tyrehood Zone app to find out a little more information about battery

*please refer to FAQ for battery service arrangement.

汽車電池 - 耐用度

"到底粒電可以玩到幾耐"

 "有冇平靚正, 耐用既電"

都係最常問既問題

其實現時回答都會係, 2年左右, 歐洲電囉, 日本電囉要耐用既話.

兩年左右既意思, 係大約兩年. 唔少車主好似會自己 filter 左個 "左右" 既意思係後面. 

"平均兩年" 係多年來由唔同既供應商經市場上所銷售既數據計算出. 呢個數係 "拉curve". 

作為使用者既您, 會係拉向左邊, 定係拉向右邊? 

由於電池都起碼用到一年, 要收集唔同既數據都需時, 所以我都會通常跟番出面大家咁講, 大約兩年左右, 但至於實際既情況, 請Tyrehood 既客戶另外向我查詢或可以係 Tyrehood Zone 既apps 入面睇到有關講解.

請留意網站上的 FAQ 有關安裝電池服務安排.

Car Battery - How to get one suitable for your car

By knowing the three different types of battery (normal startup battery, EFB and AGM), the next step will be selecting an appropriate one for your car.

1. Japanese / Korean manufactured vehicle (non-hybrid)

Simply open up the front hood and take a look at the battery label. The size (and specification) of the battery is written on top. Take note of the last two numbers and one letter that follows.

e.g. This Acdelco S80D26LH. The last two numbers is 26 followed by L (26L).

Lastly, check out if your vhielce has iStop function, and whether you are using it or not. If you are using iStop function, get EFB or AGM battery.

If you wanna check out the price of the battery, type (in this case) 26L, or simply check out the price at different retail store on your own by mentioning this size battery. (if you need a EFB or AGM, you need to mention it as well, otherwise it will be regarded as normal startup battery)

https://www.tyrehood.com/en/car-battery.php

2. EU manufacture vehicle  (non-hybrid)

Some brands such as Volkswagen , the battery location is at the front. Others like BMW is located at the rear (rear bonnet)

The size of these vehicle battery can normally be referred by its Ah value (especially in the case of the original battery). However, after market battery can be difficult to judge the size by referring the Ah value, as there are range of Ah offered by different battery brands.

So, the best way is to get the width and length of the battery, and check out whether you got an iStop function

At tyrehood, you can use width and length to find the list of batteryavailable.

https://www.tyrehood.com/en/car-battery.php

3.  Japanese / Korean manufactured vehicle (hybrid)

Besides the very high voltage battery (which is around 220V) that the hybrid car has, there is another startup battery to get the car engine on.

The location of the battery is different for different brands. Some located at the front, some located at the bottom of the seat, some located at the rear.

If the battery is located at the front, that is a good news. Not only you can check the battery model easily, the size of the battery is normally (or commonly) be found in the market.

But for those that located differently, it is cumbersome to find exactly the same size of the battery.

An example of the hybrid car used battery, which looks like a square size. But most commonly sold batteries are rectangle size in Hong Kong.

4. EU manufacture vehicle  (hybrid)

Haven't seen one yet.

The size of the battery market is small. Hence there are very few brands you could choose. With the increasing number of hybrid cars and different sizes required, there could be a day when there is only one or two brands available for you to choose.

汽車電池 - 如何選擇岩裝既電池

 知道最基本既電池分類(普通起動電池, EFB, AGM), 就要選擇邊一隻電池岩自己部車用.

搵岩電裝主要睇: (1) 尺寸, (2) 電池類別 (3) 電池頭位置

1. 日本車/韓國車 (電油車/柴油車)

呢款車比較簡單, 開頭蓋搵番粒電池, 留意一下電池上面既 label 係寫住咩型號. (因為電池尺寸既型號就係代表住電池既尺寸. 留意番電池型號, 最後2位數字及之後既一個英文字母.)

e.g. 呢款既 Acdelco S80D26LH. 最後兩位數字係 26 及 L (26L).

最後要知部車是否需要用 EFB 或 AGM, 就係睇番自己部車有冇 iStop 功能啦. 特別係二手車, 上手可能有機會換左普通電池但係自己又keep 住用 iStop, 所以最好都係睇番部車自己既功能.

如果想上網搵電池, 就係網站上輸入 26L. 又或者直接同鋪頭講, 問 26L 電池既價錢.

https://www.tyrehood.com/en/car-battery.php

如果搵唔到26L 個字眼, 就直接用尺度一度.

2. 歐洲車  (電油車/柴油車)

有啲牌子如 Volkswagen , 電池係位於車頭位置. BMW 電池位置係車尾箱.

歐洲車既電池尺寸規格就, 通常都可以利用電池上既 Ah 數去refer 番. 特別係原裝電池. 因為尺寸通常一樣. 但係二手車有曾經換過既電就比較難以利用 Ah 數去refer 尺寸. 

最好既方法, 就係搵把尺度一度長度及寬度,

之後再睇番部車駛唔駛用到 iStop 功能. 

歐洲車就只需要呢兩樣野就可以搵到相對既電池.

係Tyrehood 網站上都可以利用長同寬去搵一搵相對既電池.

https://www.tyrehood.com/en/car-battery.php

3. 日本車/韓國車 ( Hybrid 油同電既混能)

Hybrid 除左本身自己有粒 (好似係 220V ? ) 既電去行部車之外, 另外都仲有一粒起動電池. 呢粒電池就係用黎撻著部車.

每一個牌子既電池位置都唔同. 有啲照樣放係車前面位置

有啲放係座椅下, 有啲放左係車尾.

如果粒電係放係您部車既前面, 咁就太好啦. 您可以好易睇得番粒電既型號. 照番住第一個point 所講既搵番電就ok 啦. 

但係如果您粒電係座位下面, 或者係車尾既話就麻煩啦. 因為最驚既係, 搵唔到岩您用既電池尺寸.

因為香港市面上銷售既電池牌子已經不多. 如果連尺寸都唔係跟大隊既話, 仲更加難搵.

一向見開既長方型電池, 突然變左正方型咁既尺寸. 

4. 歐洲車 (hybrid)

暫時未見過. 仲未答到大家.

香港現時電池市場規模太細. 可以揀既牌子不多. 可能遲啲仲會越黎越貴. 因為冇得揀.

Tyrehood Next Project

 English version at the bottom

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再一次感謝Tyrehood顧客支持. 願意與Tyrehood 於輪胎市埸上作出改變. 我會一直更新並盡量研發更多既野於網站及手機程式上

Apps 內容都會盡量一直更新. 而今次黎緊既project, 就係我一開始就期望好快做到既野但係眼見要好啲時間去研究所以就冇繼續做到. 而家就先做啲簡單既野先.

(prototype)

今次個重點係圖最上面既個"抽" 野. 就係整硬件去檢查汽車電池.

Tyrehood 既顧客, 希望我可以盡快 handle 到個 chips 做到個hardware 出黎俾大家用. 

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Once again to thank Tyrehood customers support, and go with Tyrehood vision to improve the experience of the tire industry. I will keep updating the existing website and app in the future.

Besides updating the apps content, the upcoming project is something that I wanted to do since the beginning. Due to a long time spent in researching, this project was put on hold. And now, I have started to do something simple first.

(prototype)

The important point  is at the upper part of the image (in which there is a big lump of wires). This is something created to inspect the automotive battery.

I hope I could handle the chips to make the hardware for Tyrehood customers as soon as possible.

Looking forward to it.

汽車電池 - 種類

對於汽車電池, 您有幾熟悉?

汽車電池可以用到幾耐?

可以用幾長時間?

日本製或歐洲製就一定係最好?

未繼續答更多既問題之前, 首先大家都一定要知最基本既野, 就係到底有咩電池類別, 同埋應該揀邊一個類別.

總括黎講最常用既汽車電池分為三類別 - 普通電池, EFB電池, 同埋AGM電池.

(仲有另外兩款, Deep cycle 同埋 Lithium. 呢兩款就睇下會唔會遲啲再講)

呢三款入面應該揀邊一款?

如果您部車係沒有iStop 功能(中文好似係叫 停車時自動熄匙功能), 就只需要用番普通電池就夠.

如果係EFB或AGM電池, 電池上都會印有 EFB, AGM 既字眼. 所以好易認得出.

現時香港有9成幾既汽車用電池都係 "免維護(Maintenance Free)". 即係用家無需要去睇電池入面液體夠唔夠, 唔駛好似以前咁需要加蒸餾水.

私家車同van 仔用既電池都只會搵到"免維護", 除左部分貨車都仲可以買到水電.

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汽車電池及其他服務檢查只限於Tyrehood網上客戶並落訂購買至少兩條輪胎(並未有要求戥呔前移除鉛)及電池(電池牌子需要在Tyrehood網站上銷售, 如 Acdelco, Eneus, Solite等)

其他未有預訂及直接於門店安裝電池的客戶請直接向供應商查詢產品問題.

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另外一個題外話, 

汽車業務通常分為輪胎及電池(簡稱呔鋪, 為零售服務), 維修(簡稱車房), 及汽車美容服務. 

Tyrehood 現時業務為呔鋪, 並沒有其他服務如更換油服務提供.

Automotive Battery - Type of batteries

How well do you know automotive batteries in the market?

How long can it be last?

How long can it be used?

Those made in Japan or made in Europe are the best recommendation.... or is it?

Before coming into further questions, it is a basic to know what type of battery you actually need for your vehicle.

In general, there is 3 types commonly used for your vehicle - The standard battery, EFB, and AGM.

(There is another 2 types of batteries, deep cycle and Lithium which maybe explained in the future)

So which one should you choose?

If your vehicle do NOT have an iStop function (idling stop function, which automatic switch off your engine when your vehicle comes to a stop), a standard battery is enough for your vehicle.

It is also easy to classify the type of battery by looking at the labels. If it is a EFB or a AGM, there will be label imprinting on it. 

In these days, the way that automotive battery work is now known as "Maintenance Free", which implies users do not need to keep track of the liquid level of the battery. (unlike last time when you need to top up the battery using distilled water)

The after market batteries are all "Maintenance Free" except one or two brands available in Hong Kong market. However, those non Maintenance Free batteries are only available to Long Lorry vehicle and Truck.

Battery inspection and other inspection service are only available to Tyrehood customers who at least pre-purchase two tyres and one battery (battery brands must be available on Tyrehood website such as Acdelco, Eneus, Solite etc).

For walkin customer, please contact the supplier for any query or questions related to your product issues.

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Out of topic, but something to be known. Automotive industry in Hong Kong is classified into three categories - tyre retail store, automotive garage, and automotive detailing.

Tyrehood is a tyre retail store at this moment. Therefore Tyrehood do not provide services such as oil changing which are provided by a garage.

呔鈴修補DIY分享(簡短版)

(English version at the bottom)

香港鋪頭做呔鈴修補好似唔多.. (可能我唔係點留意, 但freelance 既都唔少.). 有唔少人問我有冇做呔鈴修補. 我自己就從未做過呢樣野, 搞到我又想玩下, 所以就自己買左啲料試下..... 

手工點都肯定差啲, 因為我冇機器整. 只係靠對手用紗紙係咁磨, 磨番平個位之後再補. 補完之後再上色

 對於未試過補鈴既車主, 如果想補既話, 您就要預埋改色, 或者重新嘖過同一隻色啦. 因為日子耐左您條鈴原先既色會變的. 就算噴番同一隻色都會有色差.  

如果鈴邊位多個地方都需要修補的話, 好有可能要好長時間先搞得點. 因為仲要填番個位. 

不過就唔好搵我補啦, 因為我又唔似得其他做左咁多年既師傅補得咁靚, 有機會有少少突左啲補既位出黎. (除非您唔介意拎黎俾我玩). 

如果冇街出, 不妨可以自己試玩下. *最好拆左條呔出黎用砂紙磨, 就手啲. 所以如果您有打算想自己整, 您又咁岩又會換呔個陣您就可以順便搞埋.

下次會試下噴色, 到時再分享下.

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There are not many retail stores prvoide repair rim service. (or maybe I am not aware of it since I do not provide such service, but I am aware that there are some freelancers who provide such service). More ppl asking such service, and out of curiosity, I decide to try it out myself.

Surely not as great as those professional. I do not have any devices to help, only using sand paper

For people who have never patronize a store for rim repair service, there is a high possibility of a need to change the color of the rim (or simply "renew" the rim by spraying the same color) as the color may change after long service hours.

It may take a long time too if there are multiple places to repair.

But please do not look for me to get this service as I am just a first timer trying this for fun. (unless you do not mind letting me "playing" around with your rim.

If you have no places to go, why not trying it out yourself? *It's easier to rub the rim by dismounting the tire. If you happen to change tire, you could take the rim to rub before installation of new tire.

The next time I will try changing color of the rim.

輪胎介紹其實好難回答

今次內容幾複雜. 因為我唔係好識點樣整理番講重點. 內容係想講下點解咁難去答 "有咩呔好介紹", 同埋 "有咩呔抵玩" 呢啲差唔多既問題

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"我想揀安全既呔, 咩牌子都得"

呔既性能當然係車主最關心既一樣野. 揀番啲出名既大牌子當然有信心, 但係咪代表其他所有呔都唔好呢?

其中一樣輪胎製造商係研發輪胎時會測試既野, 就係計算輪胎既咬地性能(係唔同既方向)

當輪胎失去咬地力, 您就會失去控制車既方向. 依照當時輪胎情況下, 輪胎咬地力失去之後既一剎那有機會係再番黎.

通常都會諗到係, 輪胎老化, 或者係該款輪胎性能唔夠好, 唔安全.

老化的確係失去咬地力既因素(大部分發生呢個情況都係). 但後者就唔一定.

每一款呔都有佢既咬地力既極限. 當您用多於條呔咬地力既極限, 部車就會失去控制. 至於點知自己已經去到呢個極限就有好多因素, 包括車款.

當然輪胎物料對於咬地力都好重要

但係另一方面都要知馬路上既物料係會影響到輪胎既咬地性. 因為當輪胎行駛係馬路上就會係之間產生左化學作用. 

所以您有機會有聽過, 歐洲製既呔唔岩您係香港用. 因為歐洲製既係俾番歐洲個邊既路上面用, 唔係俾香港既路上面用. 另外地區既溫度等問題都有影響.

輪胎像膠同馬路上既化學作用 (好似係叫 hydrogen bond, 我唔係好肯定. 唔會係ionic, 都唔會係convalent). 呢種既bonding 會令到輪胎粘住係路面上. 而影響到化學作用 (chemical reaction) 既常見因素如溫度, (e.g. 高溫會加快化學作用). 有時您都會聽到, 要令到條呔行到去最岩既溫度先發揮到個款呔既性能. (但過高會有反效果)

呢樣都解釋左點解唔應該係雨天渣快車. 因為路面會有一層水擋住像膠同馬路上產生既化學作用.

另外其他影響輪胎性能包括汽車配件....

所以我係答唔到"有咩呔好介紹", 同埋 "有咩呔抵玩". 如果有既話, 其實我唔駛放咁多牌子上網. 我直接賣一個牌子就夠. 

Tyre recommendation is not easy to answer

This topic is quite complicated in a way that I couldn't figure out how to summarize the points nor how to express the points clearly. The main point I want to bring out is...

it's difficult to recommend tyres model for you, especially when the question asked is 

"which brand and model is value-added / worth purchasing"

Keep reading if you are interested to know why.

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"I wanted a tyre that is safe to drive, does not really matter which brand it is"

The tyre performance is the most important concern of all drivers. Choosing a famous brand is surely making one's mind better in driving. But does that imply other models are not good enough for driving?

One of the (mutual) things that all tyre manufacturers are working on with their tyres involve the calculation of tyre grip in all directions.

Once the tyre lost grip, you lose control of your car. Depending on your tyre condition, you may get the control back just right after you lost it.

Normally people would think that it is either the tyre ages or the tyre performance is not good (hence not safe to use)

While the primary is true to most of the situations, the latter may not be the case 

Each tyre has its limit and once you utilize beyond this limit,  your vehicle will start to lose control. How to tell if you reach this limit depends on a number of factors, including your vehicle type. 

Of course the materials of the tyre plays a very important role in the contact on the road.  

However, it is also important to look at the material used to create the road, in which also an attribute to the performance of the tyre because of the chemical reaction between the tyre rubber and the road.

Thats why you may have heard choosing a made in western tyres may not be suitable to you in Hong Kong as those are meant for roads in EU or the west, which may differ from the materials used in Hong Kong. And so as temperature, humidity, etc.

The material used in tyre form a bond with the road (I think it is hydrogen bond, I am not too sure. Not ionic, not convalent). The bond helps to stick your tyre on the road. Bonding is affected by common factors like temperature ( in which the higher temperature, the faster the reaction to form the bond ). Hence the reason (or point) you may have heard, to allow the tyre reach to the optimal temperature and better performance the tyre will give to you. (and too hot will destroy the bond instead)

This also explains why you should not drive fast in a rainy day or on a wet road as the water layer blocks the formation of bonding.

There are other things affect tyre performance, including your vehicle parts. 

I have no answer to "which brand / model is value-added or worth buying". Otherwise I will just sell that particular brand.