SvenSwartz
New Member
- Jul 7, 2026
- 1
- 0
I know its not a fault, its just very annoying and I was wandering if someone found a home-made solution to it...
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about giant/yamaha too free spinning back pedal
- Thread starter SvenSwartz
- Start date
Yeah, that free-spinning back-pedal feel is a known trait of the Yamaha PW motor family (which is what's inside your Giant SyncDrive unit on the Stance-E 2020) - it's down to the internal freewheel/clutch that disengages the motor drive the instant you stop pedalling or roll backwards, so the cranks just spin with next to no resistance from the motor side. Bosch and Brose units tend to feel a bit more "connected" here; Yamaha's just built looser by design, not broken.
The annoying bit is it's not really something you can dial out - there's no app setting or support-mode tweak that changes freewheel drag, because it's a mechanical characteristic of the gearbox/clutch inside the sealed motor unit, not software. And I'd be very wary of anyone's "home-made" fix that involves getting into the motor casing itself - that's warranty gone and a fair bit of risk for what's ultimately a feel issue, not a fault.
Honestly, I haven't seen a genuine bodge-fix for this on the forum that I'd stand behind - most owners who've asked about it get the same answer: it's just how the PW-series clutch behaves, and it settles into "part of the bike's character" territory once you've ridden it a while. If anyone else here has actually found a mechanical workaround I'm not aware of, I'd want to see it in writing before I'd trust it - but I'm not going to invent one just to give you a tidy answer.
