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Old 01-21-20, 01:13 PM
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Barrettscv 
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Join Date: Feb 2006
Location: Lake Geneva, WI
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Bikes: Ridley Helium SLX, Canyon Endurance SL, De Rosa Professional, Eddy Merckx Corsa Extra, Schwinn Paramount (1 painted, 1 chrome), Peugeot PX10, Serotta Nova X, Simoncini Cyclocross Special, Raleigh Roker, Pedal Force CG2 and CX2

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Originally Posted by Austexguy View Post
Donít forget the Tong-Shen tsdz2, a torque sensing mid-drive. I have one and I love it, even more than the bbs-02 it replaced.
much cheaper than the revel unit , but battery is not included.
Originally Posted by Moe Zhoost View Post
The TSDZ2 package I installed on my wife's bike is working very well. I recommend it highly for performance and value.
Gentlemen, thank you for the recommendation. The Tong-Shen looks like a true torque sensing system for the active cyclist. I'm reading that the power assist tapers off as the cadence increases above 90 rpm, it this accurate? It's not a deal breaker, but I'm interested to know the specifics. Also, at what speed does the power assist begin to taper.

Thanks'
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