i am buying a bike this weekend a 08 ktm 250 xc. i race hair scrambles in ny on trails suck as the unadilla gncc whitch i have been luck enough to ride in 3 years straight.

the bike im buying need new chain and sprockets. what size front and rear sprockets should i get. ?

i have rode a bike that was 13 52 exc 250 and it was geared a lil high for the tight stuff but great in gncc style tracks

My Son rides that model is tight woods enduros and stock gearing has worked fine

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