这款sworks的双边功率计是随车搭的，不然我是不会单买的。
用了2个月没什么大毛病，只是左右腿平衡数据没法看，左腿大大高于右腿，在
dcrainmaker的评测下面看到有人反映同样的问题。但因为我不在意左右平衡数据，所以忍了。
2个月后，电池快用完了，数据开始乱飘起来，动不动就250+. （本人菜腿目前ftp168w) 稳定输出时，读数偏高约15%. 经常停下校准，校准结果1010，也就是正常，但读数仍然不对，不是偏高15%就是偏低10%，有时也能校准到读数正常，通常是在骑行最后一段。
于是换了左右腿的电池，问题仍然没有解决，稳定输出时偏高15%，动静大时乱飘高到250+. 关键是这些乱飘及读数异常通常出现在骑行约20分钟左右，也就是刚开始骑行时数据是对的。我怀疑是不是温度问题，但是不应该啊，刚买来时不好端端的吗？！本地温度1-16，一点也不极端啊。
码表是wahoo bolt, 应该也不是码表的问题。
但有一点很有意思，今天码表显示最高功率414，而strava显示344. 差不多是我感觉出来的15%的差别。
还有一点很诡异，闪电官网说，左右双边功率计，在连接码表时，只用连接左腿即可。然而在wahoo码表上，显示的是连接上了闪电右腿。即使我把闪电右腿的电池拆了，只装左腿电池，码表仍然显示连接的是右腿。这是bug？
以上提到的15%是自己的感觉无实验室数据，我有其他三个功率计，一个stages, 一个2inpower, 一个tacx neo, 所以对自身感觉和对应的输出还算了解。另：对以上3个功率计都非常满意，稳定可靠，省心放心。
已经被sworks功率计搞疯了，每次骑行都神经兮兮的越骑越抓狂……
我准备明天在tacx上做个对比，把结果发给车店，不行就走质保了。
关键是质保会不会换到一只更烂的
请大家来聊聊你们的sw 4iii功率计怎样，有类似问题吗，怎么解决的？谢谢！
以下是dcrainmaker下面其他倒霉闪电双边功率计用户提到的问题
左右平衡问题
I LOVE how predictable S-Works Power Cranks have been but the left / right balance makes me scratch my head a little. In the past with dual sided units, I monitored my balance for a week or two and kind of stopped looking at it since I’ve always had 49/51 or 50/50. With S-works, when I pedal with left only or right only, I still get 40%-50% readings from the pedal that’s unclipped. I’m also getting 46%-54% readings consistently on my rides. Nothing has changed. No injuries, no different bike fit. I don’t know why the discrepancy.Despite all of that though the final number that the unit displays seems very accurate, predictable and repeatable. When I average 3-5 watts more on a climb, I get predictably faster times etc.
经常掉线问题及左右平衡问题I purchased a new Sworks Tarmac last week and have had serious troubles with power numbers and cadence dropping out, as well as huge spikes. It’s happening about 20-30 times per ride. I’ve tried all the troubleshooting options like updating firmware, replacing batteries, factory resets (on both power cranks and Garmin head unit). lots of zero offsets. I’ve been using the Garmin Vectors for years and never had any issues with dropouts or accuracy swings like this! I’m also getting wild readings on L/R balance (for years I’ve been very close to a 50/50 rider). Compared the readouts to my TACX power meter at a consistent tempo (which is usually very reliable and within range of the Vectors) – it just shows the Specialized power cranks are doing crazy things. I think it might be a defective unit. Any help appreciated!左右平衡问题Hey Marcus! I’m afraid there’s no solution to the L/R balance and it’s an inherit problem with these cranks. Too many people with same issue to call it bad luck. Cranks for me still have been VERY predictable and “accurate” in relation to themselves but L/R balance has always been off. At this point I believe one of the meters is off by a margin and it’s always off by the same margin so for training purposes, it’s not a big issue.However I have never ever experienced with cadence drop outs or spikes or anything like that. It seems like your unit is definitely faulty. You should contact the shop you bought it from (unless you bought used) or the person you bought it from to see if they can help you send it back for a warranty claim.Good luck!
左右平衡及右脚读数偏高问题Same “problem” here.By joke I tested the balance yesterday by unclipping one pedal at a time. When I pedal with right leg only it reads 0%-100%, but when I pedal with left leg only it reads 95%-5% roughly.I also tested how the two units work when not connected one another but as standalone power meters. I removed the dual sided PM from the Garmin, I disjoined the two cranks with the Specy app, then I paired the left side sensor only (by adding the ID manually into the garmin) for a couple of minutes, removed it and done the same with the other sensor.
At the end of the day the right side was reading significantly higher (I believe more than 10W out of a resistance set in the Direto of 180 or 190W).I contacted the Specialized support to see how they react to this notification.
Keep you guys informed.thanks
Luca
