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Ultimate Big Bore Kits

KLX300R

The proof is in the Power!

350cc big bore kit. Includes cylinder ( exchange ) 12.0:1 piston kit  head and base gasket  10079 BBK $749.95
 

Including cylinder no exchange  
10080 
BBK $998.95

No Case Machining required, This is a bolt on kit. RUNS ON 91 PUMP GAS

2020/21  KLX 300/R/SM 

350 BIG BORE

Runs on pump gas.