Gearing

California Scooter TT250 discussion forum:


Gearing

Gearing 
JMC said 2018-03-28 22:51 
 
Every bike and nearly every car is over geared.
After hours of analysis, calculation and estimation I have decided on gearing between 10.4 miles/1000rpm and 12.5/1000rpm.
Stock is 9. So I have bought 36 and 38 rear sprockets (here in the UK). With the 15 that gives approx equal gaps to test.
A 14 gets me 9.75 which is too close, 17/36 for 400 mile days and possibily even 3rd gear cruising. It will give me choices to get out of a vibe zone. 16 not needed as matches 17/15/38/36 combinations. I am not worried about burning out the clutch or lugging the engine: I can drive & understand the physics in there. I will be doing 1000 miles per week on vacations within the limits of 3 month visas. Yet to buy bike. I have 200 hrs online research on this and KLR650 - which I will buy later in my 4 year Americas Safari plan. 
 
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