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I know some ppl driving around on old bikes with this type of coaster brake, all of these hubs I have seen have this play in the cog you describe. mostly GDR stuff like Renak, but shouldn't make a difference to other manufacturers. so should be normal.
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is that ‘float’ or (lack of) tolerance a thing with coasters?
Yes.
HK_Berlin
M_V
@crossedthread
Now, here’s a question.
Coaster-brake single-speed rear wheel, cog is secured with a large circlipy type thing, behind the cog (which has three splines / notches) is a deep washer (about 12mm ish) with a fine lip at the edge facing off to the spokeside of the cog.
Now, the cog isn’t threaded to the hub, it sort of ‘floats’, which gives a little lateral movement when the coaster brake isn’t invoked (a brake which works really well, as I discovered when testing yesterday with a sick skidz - very satisfying btw.)
Sorry, back to the question- is that ‘float’ or (lack of) tolerance a thing with coasters? Will the rear wheel wheel fail and kill me?
I took the thing apart and the cone nuts and all were tight, so wondering if best to ditch the wheel and replace with a simple fix/free (biek has f & b calipers so much braking accomplishment already.) Or carry on and ignore?