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Hi Just to update this thread: Reduced the chain ring wobble by fitting a new sprag clutch. There's still a small amount of lateral play, but much better and not scuffing on casing. Reduced the pedal / crank wobble as follows: At the drive end of the spindle: I was able to slide a piece of...

As soon as I noticed the wobble I stopped using it, for fear of damaging the torque sensor.

Hi Sturmey, Thanks for the reply. I have come to the same conclusions as you, and will try a combination of: shims; extra spindle bearing; and loctite. I also posted the same question on Endless Sphere and apparently PSPower sell a wave washer that fits inboard of the circlip on the...

Hi After 3 weeks of use and 350 miles, I've noticed a couple of worrying issues with my Tongsheng mid-motor: 1) The chain ring wobbles +/- 1mm, enough for it to catch on the motor housing and make a scuffing sound 2) The pedals wobble +/- 1mm in/out/up/down Neither are caused by loose motor...

Thanks for the advice - feel confident place an order now :)

Hi First post - be gentle :) I would like to fit a TSDZ2 with 42T chainring to my 2016 Trek Marlin 7 hardtail mtb (29er). From the drawings I could find, the Tongsheng has a 50.2mm chainline. The chainline of the 40T triple on my Trek is about 56mm (see photo) and there's about 5mm clearance...