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Sprockets-Gearing ?

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DaveT
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Sprockets-Gearing ?

Post by DaveT » Thu Nov 10, 2016 6:16 pm

Apologies if this has been discussed previously, but a "re-fresh" for the new kids might be nice ? What is the definitive sprocket ratio/sizing on a CL77 for a comfortable 65-70mph cruising speed, please ??
Has anyone thrown different tyre sizing into the equation too ?

rustywrench
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gearing

Post by rustywrench » Sat Nov 12, 2016 11:04 am

If memory serves me right, 15-37 is the tooth ratio for stock bikes. Great for slow speeds where more toque is needed. I went with a 16-35 ratio for higher speeds and found it to be a good combo. Keep in mind though, the longer the legs on this bike , the harder it will be on the clutch to get her rolling from a stop. Rusty

DaveT
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Post by DaveT » Sat Nov 12, 2016 11:41 am

Cheers for that Rusty....appreciate your knowledge !! Just need to find a supplier in the UK, unless any of you kindly USA gents can help out ?? I'll swop you for some PG TIPS tea & a jar of marmite !!

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G-Man
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Post by G-Man » Sat Nov 12, 2016 12:21 pm

Dave

Try these guys - very helpful. They even had primary chains last year.

http://www.sprocketsunlimited.com/Sprockets.html

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

DaveT
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Post by DaveT » Sat Nov 12, 2016 12:27 pm

Thanks G.....Have you had sprockets from them before ? Excuse my ignorance, what "pitch" have I got on a standard sprocket/chain set-up ? Cheers D

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G-Man
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Post by G-Man » Sat Nov 12, 2016 2:15 pm

Dave

Pitch is 5/8" I believe.

Not had sprockets from them but they should be able to help or point you in the right direction.

G

DaveT wrote:Thanks G.....Have you had sprockets from them before ? Excuse my ignorance, what "pitch" have I got on a standard sprocket/chain set-up ? Cheers D
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

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