Going to be fitting an Avanti ex box and 17t front sprocket at weekend(currently on Bgm v.2 and 16t).
Will I need to up my main jet?
Im running a 28mm PHBH with 118 main jet
All info appreciated.
Cheers
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Rich Oswald wrote:Plug chops are the best indicator of that but you could go uo a couple of sizes to be safe and work your way back down.
+1bookertmgs1 wrote:what top end have you got on ? Gear box ? Crownwheeel ?
Why increase the front sprocket size ? whats the intended result ?
You are potentially changing 3 things all at the same time - which adds a degree of complication if the results arent what you expect
+1Rich Oswald wrote:Plug chops are the best indicator of that but you could go uo a couple of sizes to be safe and work your way back down.
bookertmgs1 wrote:what top end have you got on ? Gear box ? Crownwheeel ?
Why increase the front sprocket size ? whats the intended result ?
You are potentially changing 3 things all at the same time - which adds a degree of complication if the results arent what you expect
Micky67keane wrote:bookertmgs1 wrote:what top end have you got on ? Gear box ? Crownwheeel ?
Why increase the front sprocket size ? whats the intended result ?
You are potentially changing 3 things all at the same time - which adds a degree of complication if the results arent what you expect
I have an RT195 and 46t crownwheel with pacemaker box.
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