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sram Etap 交流使用心得+貼圖

媒體的報道 :

http://www.cyclingweekly.co.uk/news/latest-news/sram-etap-vs-di2-which-is-better-211408

Shimano Dura-Ace Di2 still sets the gold standard when it comes to electronic shifting.

SRAM has acknowledged the rear derailleur's slow shift speed, saying that the decision was made to slow down the shifting speed in an effort to prolong battery life.

With all of the non-electronic parts(i.e. the chainset, cassette, chain, brake calipers, and bottom bracket), Red eTap is more than 150g lighter than Shimano Dura-Ace Di2.

按 : 還沒有講中死穴, eTap前後同步轉檔的滯後速度...........

MrHaematocrit 神回 : "Wireless makes a difference once, when the bike is being built. Shift performance & quality makes a difference every time. Wireless seems to be a lot of hype to me, unless there are other advantages I'm missing."
yuettoi wrote:
轉貼外國用家的心得吧...(恕刪)
After more time with eTap I have these tips:

-If going from big/big to small ring and smaller it definitely helps to push the left lever first and then right one shortly thereafter. It almost seems that the order that you press/hold both to do the simultaneous shift changes the shift speed. I could be imagining things here, but that's my feedback.

-In going from small ring to big ring I'd press the left lever first and then the right shortly thereafter.

-Both of these techniques seem to be faster or smoother than pressing both levers at once and then holding one down for the rear der. Not sure why or if its just me making things up, but it helps.

-I was doing some big ring, low cadence efforts and had to shift both up to a bigger cog and down to a lower cog under high load. If shift speed would be an issue it would be here as cadence would be low enough that they delay in rotation combined with a supposedly slower shift speed would definitely jam things up, but it didn't. It actually seemed smoother than my 9000 did especially going into a bigger cog.

-If you care about this dialing the lever reach in a bit helps braking and shifting at once, but only if you change your technique a tad. Instead of trying to brake with your middle finger and shift with your index, do the opposite. The paddle sits slightly lower than di2 and if the reach is dialed in a tad you have enough of a "grip" on the lever to get full braking power when in the drops or tops.

-So far I've charged the batteries once and ridden it for 15hrs. I also left the batteries on on accident when driving 4.5 hrs to and from somewhere. No issues yet with them being close to end of life.
感覺變速方式差異頗大

跟速聯本身機械式的就完全不同

要上手可能要一段時間了

喜馬路DI2感覺容易上手許多

機械我選SRAM

電變我選DI2
Paris-Roubaix 經典賽事之中eTap有發生過問題嗎?

WESTpower wrote:
感覺變速方式差異頗...(恕刪)


經過我這幾天的測試
不用再聽國外說什麼延遲問題了
因為我的使用心得是快狠準!
我沒用過di2無從比較
但我用過6800
如果你覺得6800變起來的速度你很滿意那這款變起來的速度更是好上不知道幾倍
上下盤快!
上下飛輪順!
請問一下各位使用過的大大

我的etap後變飛輪從大齒片變到小齒片時
如果剛好是往下踩的時候
可能會發生框一聲
感覺好像是我踩太用力
鍊條又剛好正要移到小齒片的時候就會發生
請問有人遇到這樣的狀況嗎
聲音不小感覺 大家都知道我變檔了
http://bradpitttour.blogspot.com/
用過 Di2 的車手,
很多時候都會同時按左右槍手的升檔或降檔按鈕,
例如 前大盤50T->34T, 後28T->25T,
或者 前大盤34T->50T, 後22T->25T, 同時進行
目的是大盤轉檔時整體齒比不會跳得太多
(就是 9170 新加入的半自動功能, 9070,6870 暫時都是以人手完成)
在 Shimano Di2 可以在0.5-1秒左右完成
但 eTap 只有左右兩按鈕
不可能這樣做, 在 eTap 這是死症, 無得救.
做這個動作肯定要 4 秒以上
除非 eTap 加入序列式轉檔功能
Colnago c60?


Good bike



dragonG815 wrote:
小弟架愛車.......(恕刪)

chachaping wrote:
用過 Di2 的車...(恕刪)


哈哈。 4秒,還肯定。
我都肯定你未用etap.
Di2 轉前後檔是一個動作
eTap 轉前後檔是兩個動作
eTap 是死症, 無得救
肯定比 Di2 慢

eTap 目前可做的, 是軟體方面的改進,
要加入序列式變速功能,
前檔就要加入半自動變速功能.
但我很懷疑這兩個專利已握在 Shimano 手中,
不太可能放生給 SRAM 的.

diomobile wrote:
哈哈。 4秒,還肯...(恕刪)
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