sidecar engine sprocket size

Information relating to the Matchless G12 or AJS Model 31 650cc twin
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pete52
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Posts: 1
Joined: Wed Dec 06, 2017 10:13 am
Location: MORECAMBE UK

sidecar engine sprocket size

Post by pete52 »

My bike seems to be reving very high for only about 75 top whack.Think It could be on sidecar gearing.How many teeth should the engine sprocket have for standard gearing.I can poodle along two up at 30 without snatching.Any different ideas?
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Duncan
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Posts: 2129
Joined: Thu Jul 10, 2003 1:00 am
Location: HAMPSHIRE UK

Re: sidecar engine sprocket size

Post by Duncan »

Hi Pete, standard gearing is:
Engine - 23
Clutch - 42
Gearbox - 16
Rear - 42
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