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Rear Sprocket flange nuts

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davecb5002
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Rear Sprocket flange nuts

Post by davecb5002 on Thu 04 Jan 2018, 5:22 pm

Can anyone tell me the size and pitch of rear sprocket retaining nuts ??Not sure if they are 10mm x1.25 or 12mm x1.25. Just in the middle of changing chain etc  and thought some nice new nuts would look better. Thanks for any help.
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Jameshambleton
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Re: Rear Sprocket flange nuts

Post by Jameshambleton on Thu 04 Jan 2018, 6:59 pm

Thought they were M12 x 1.25mm?
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davecb5002
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Re: Rear Sprocket flange nuts

Post by davecb5002 on Thu 04 Jan 2018, 9:31 pm

Thanks James. Just found my vernier caliper and thread gauge and it is M12 x1.25 pitch.
Was the original Honda one I replaced, 30K, not bad.
Does anyone know why the original Honda Rear sprocket had  a rubber flange rivited to the outside and the engine sprocket had like thick neoprene washers to both sides Shocked Shocked All very strange
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Jameshambleton
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Re: Rear Sprocket flange nuts

Post by Jameshambleton on Thu 04 Jan 2018, 9:33 pm

The front sprocket does/did too at least the original. It's there to dampen the sound of the chain.

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