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  Thumper Racing Complete parts kit with sleeve installed in a new cylinder -CRF 250R/X 04-08-
  Thumper Racing Complete parts kit with sleeve installed in a new cylinder -CRF 250R/X 04-08-
Thumper Racing Complete parts kit with sleeve installed in a new cylinder -CRF 250R/X 04-08-
  
Retail Price $750.00



Product Code: THUMPER_RACING_CRF270A_NEW_CY

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Description
 
Wiesco builds our 81mm piston and we added more skirt to help stabilize the piston in the bore. By adding more skirt we feel that our piston will have a longer life than the stock piston. Our 81mm piston kit has a compression ratio of 12 to 1 and will need fuel of 93 octane or better. The complete parts kit includes 81mm piston kit 81mm sleeve (installed in a new cylinder) Top end gasket kit Jetting kit Oil
 

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