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Easton EC90 SL CINCH Power Meter Crankset

EastonEC90 SL CINCH Power Meter Crankset(Return to Product Page)

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Reviewed 2/27/2018
by Seattle Dave on rock
Cycling Enthusiast
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8 of 8 customers found this review helpful.
Mixed feelings, good product that could use stiffer rings.

There are not very many reviews on this Easton Power Cinch double crank. I took a dive and decided to go for it. I have used the standard non power Cinch crank with an Easton 1x ring and it is a fabulous product. The rechargeable spindle mounted power meter seduced me the most. Having used another brand power meter for a good number of years on multiple bikes, the thought of not having to keep adding to my pile of coin cell lithium batteries was appealing, let alone dreaded dead batteries due to water infiltration and what have you. The advertised battery life is stellar, but what will the real world experience be like?

So here we go. Mechanically, the crank arms and spindle and as awesome as the standard, essentially the same. The spindle has a central cover assuming there is some sort of torque load cell there. Mounting was a breeze, charged up and connected via Bluetooth quickly to my iPad to update the firmware. The Easton account and login (required for updates) was a bit hard to figure out at first, but once in, it an issue. Calibrated quick and the meter seemed accurate and work well for a few months using ant. Then sometimes during rides, the meter would read zero for a few minutes. Maybe twice during a ride it would do this. It would say connected but would read zeros. If I forgot it and tried reconnecting, it would not pair, and tried Bluetooth with different rates of success. Then a bit later as the rains of autum set in, the battery started to drain quickly. It would go dead after a few days. Every time I charged it, it would do the same. It would work while it had juice left, it just would not last but a few days. Then some days it would read power level that seemed off. Something was definitely wrong. I recorded the battery history for a few weeks and contacted Easton and shared my data. They replaced it with a new spindle, and its been working great since. I have yet to run the battery dry, it lasted a few months before the original started going bad, and the new one is still going on a few months, but at the rates they have been wearing down, it seems like they will last a good long time. I purchased a second one, and has been working fine.

Now onto the chainrings. They shift great, just a touch slower than Shimano DA, but no issues there. I run the 52t up front, and I feel the big ring is too flimsy under high load. When sitting in the big ring and a small cog, if I jump on a max effort sprint, the chain would often slip off the front ring on the outboard side with a snap, as if the chain angle to the small cog in the back was forcing the chain off the ring, maybe combined with the ring deflecting outboard. I adjusted the front drailleur (Etap) so that it would gently rub on the outboard side, even then, t

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