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View Full Version : Loose sprocket carrier - acceptable? Firestoerm


dyzio
26-05-13, 12:13 PM
Vtr Firestorm sorry
https://www.youtube.com/watch?v=CHUoW8vpQp4&feature=youtube_gdata_player

Playing with a mates bike i've noticed that the sprocket carrier has a bit of play in it.
Is this acceptable (safe to use)?

maviczap
26-05-13, 12:33 PM
My guess is the cush drive rubbers are worn out

Its only a guess & not sound mechanical advice.

I'd change them otherwise the chains going to have a hard life in the near future


Others may come along and dispel what I've said, with sound mechanical advice, bought about by years of messing about with bikes or have been properly trained. (There that's my get out clause sorted :D)

timwilky
26-05-13, 01:09 PM
Brothers RSV went like that, turned out that it was a worn carrier.


We initially suspected the cush rubbers. But it was caused by loose bolts allowing the carrier to bang back/forth on the locating dowel elongating the holes.

dyzio
26-05-13, 01:24 PM
But it was caused by loose bolts

Sprocket bolts?

rictus01
26-05-13, 01:40 PM
yeah as said, generally rotational slack is cush drive rubbers, lateral slack is bearings or spacer wear, however all bets are off if bolts/axle nuts and such aren't torqured correctly as this can lead to component wear.

timwilky
26-05-13, 02:24 PM
Sprocket bolts?

No.

http://www.twsoft.co.uk/sv/mg/rsv.jpg
bolts 20 were loose, allowing the carrier to rotate slightly elongating the hole where the dowel 18 locates the carrier. to the wheel.

dyzio
26-05-13, 03:39 PM
Owner now advised of the situation. Will be looking at it closely, a carrier + rubbers can be bought reasonably cheap on ebay.

Thanks for the replies guys.