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#Post#: 14063--------------------------------------------------
Jackshafts and layshafts
By: uncantim Date: November 21, 2025, 3:15 am
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Morning team
Could someone talk to me about jackshafts or layshafts please?
I'd like to use a jackshaft on the next build to give me options
on gearing. I'm running 420 chain.
These are my questions:
1. What size jackshaft should I use?
2. Can I buy these off the shelf?
3. I was thinking of using a 10t (TAV) to 30t (jackshaft), then
10t (jackshaft) to 35t on the axle...am I on the right track for
a good final ratio of about 1:10 ish?
4. Does anybody have any suggestions as to where I can buy the
sprockets, as I want to make sure I'm getting the right gear?
No pun intended.
Any help will be greatly appreciated.
Thank you in advance.
Tim
#Post#: 14068--------------------------------------------------
Re: Jackshafts and layshafts
By: Ian F Date: November 21, 2025, 10:58 am
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Hi Tim, have sent you some info :)
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