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Re: [St] Rear Sprocket replacement
- Subject: Re: [St] Rear Sprocket replacement
- From: BrettWilson21@xxxxxxx
- Date: Mon, 3 Dec 2007 00:38:35 EST
In a message dated 3/12/2007 3:11:25 PM AUS Eastern Daylight Time,
rich.rumble@xxxxxxx writes:
> 1) Loosening the countershaft nut via the holding the rear
> sprocket/wheel via the rear brake and breaker bar on the C/S nut: if the
> gearbox is in neutral and the rear wheel is held by either the rear brake or
> other method on the rear tire/wheel, how does that transfer a load to any
> part of the gearbox?
>
The description was or should have been - DO NOT attempt to undo the front
sprocket nut with the bike in gear using the engine/gearbox as a brake. This can
result in damage to the gearbox as its not designed to handle stress in this
manner. INSTEAD use the rear brake and/or chock the rear wheel to apply the
counter force necessary to undo the front sprocket nut. And of course, do this
before you break the chain and remove it.
Apologies if I didnt get the description right the first time. I've seen
plenty of people use the engine as a brake to remove the front sprocket, even with
air tools and have not personally seen a bike damaged by this method.
However, a few mechanics have told me over the years to use the rear brake. It always
sounded like good advice so I've stuck with it.
HTH
Brett.
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