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Author Topic: yamaha rear sprocket 45t  (Read 868 times)

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Offline rocketfrog

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yamaha rear sprocket 45t
« on: April 05, 2010, 01:04:05 pm »
I need a useable rear sprocket to suit a 80/81 YZ100, the stuffed one I have is 45t with 6 bolt holes close to centre like 70's DT and YZ's Prefix starts with 2k6 (YZ125E) I think? Can any one help out please.
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Offline Freakshow

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Re: yamaha rear sprocket 45t
« Reply #1 on: April 05, 2010, 11:51:28 pm »
try the TT steel one i think they might have the same centres too and being a roady would be in the lower gearing
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Offline vandy010

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Re: yamaha rear sprocket 45t
« Reply #2 on: April 06, 2010, 08:26:07 am »
also to state the obvious,
if you're unable to find a 45t, then grab the next best thing and change the size of the front sprocket as well in order to keep the same gearing ratio.
they're a pretty common sprocket in 520 pitch.
428 pitch has fewer teething options but if it's for a YZ100 could be worth considering as it'll produce less "drag" than the 520.
less drag = more zinngggggg...........
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