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Old July 27th, 2018, 02:29 PM   #13
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by snapshot View Post
I went for 43/14 (instead of the US stock 45/14). The last Ninja had a 15/45 ratio and it didn't pull as well in the mountains here as I wanted it to.

PU listed a 520/104 when a 520/106 is needed for 43/14. I guess a 108 would be necessary for a 45/14.
Here's ratios & chain-lengths I've seen:

45/14 (stk) = 3.21:1 = 106L chain
43/14 = 3.07:1 = 105L
45/15 = 3.00:1 = 107L

There's more than enough adjustment range on swingarm slot to make full link changes. If you really want to be precise, you can get half-link pieces of chain (centre top row).

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