ý have a r9 and big problem. my motor is c2j ,but mygearbox is jb3010. itmust been jb1033 .I dont change it. I learned after buying. it's going flat roads very well but when ý climbing ,it's lazy and slow .
and ý learned; my motor is 72 bhp and 3010gearbox can working with f2n (or +90bhp). I have love ýt's flat road going not noisy and comfortable.
so, what can ý do?
--tunning my machine? (and why)
--change my gearbox (with 3063,3038 can be?)
in last ý want climbing road fast?
somebody help meeeee....
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