Front sprocket

[ROD]

I have had a search but cant find info stock size is 18 I want to change for more low down speed do I go up or down ,
I cant find replacement rear sprocket for my wheels so have to change front ,

[pan]

I have had a search but cant find info stock size is 18 I want to change for more low down speed do I go up or down ,
I cant find replacement rear sprocket for my wheels so have to change front ,

More low down = less teeth on front or more teeth on rear
Try 17 or 16 on front...

[Batfink]

to have final drive to be a lower speed you need to make front sprocket smaller.. increase the ratio of how many times the front has to turn to make the rear turn once

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if original is a 18/41 drive or a ratio of 2.278
then a 17/41 will end up 2.412 or a decrease in final speed of about 6%
16/41 = 2.563 or decrease of about 11%

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heres a basic spreadsheet calculator I made... LOL

https://drive.google.com/file/d/0B67Bu6L...sp=sharing

[BikerBoy]

what wheels rod? I'm running GaleSpeed and have no issues getting sprockets from US or Japan - but they cost!

[ROD]

what wheels rod? I'm running GaleSpeed and have no issues getting sprockets from US or Japan - but they cost!

Not sure of make Paul

Thanks Pan and Tony will try a 16 first

[kev11e]

G'day
Do standard sprockets not bolt up to galespeed wheels? How about other aftermarket wheels?
Regards
kevin

[BikerBoy]

G'day
Do standard sprockets not bolt up to galespeed wheels? How about other aftermarket wheels?
Regards
kevin

No they dont. You need sprockets specific for GaleSpeed rims.
Not sure about all aftermarket but BST and GaleSpeed have their own pattern.

Has never been an issue for me, I usually get either AFAM or SuperSprox.

[ROD]

[Busdriver]

[simmo]