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1974 gt380 rear sprocket
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just a random question and if anyone has time to quickly comment i'd be
thankful.....is it possible to replace a smaller sprocket for a larger
size in the rear? will timing or anything else suffer.
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Depends how much bigger it is. If only a tooth or two, the only thing
that will suffer is the top speed. You should check the chain doesn't
run unduly hard on anything though as the top chain run will be higher,
the bottom one lower.
However if the bigger sprocket's a few feet across, your left kidney's
in for a hard time.
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Good for off roading though ..
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preperation: new front sprocket already, chain will fit.......thanks
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It will increase acceleration but reduce top speed.
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YTC.
Putting a smaller sprocket on the back will have the exact opposite
effect - it will reduce acceleration and increase top speed (assuming
the engine has the grunt, which it probably doesn't, as the GT380 is
quite high geared anyway). So let's say it will reduce the engine revs
for a given speed.
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I'm glad you cleared that up. I always get that the wrong way round.
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You'll be telling me that dropping the forks through the yokes quickens
up the steering next ;-)
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".....replace a smaller sprocket" means putting something else in the place
of the smaller sprocket, doesn't it? In this case, a larger size sprocket.
Hence the increase in acceleration and reduced top speed.
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Actually, the OP's question isn't clear. Does he mean replace a smaller
sprocket *with* a larger one? I was assuming he wanted to fit a
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That is what "replace a smaller sprocket" clearly implies. Whether or not
that is what he meant to say is another issue
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sprocket that's smaller to the one he already has.
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I definitely read that as putting a larger sprocket in place of a
smaller one. But as you say it could be interpreted either way.
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So we're agreed, then? OP is a twonk. Sorted.
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