Cylinder Works 04-06 Honda CRF 450 R 450cc Standard Bore Cylinder Kit 12.1:1 Comp. 96mm - 10002-K01 $603.95 $513.35
Cylinder Works 02-08 Honda CRF 450 R 450cc +4mm Big Bore Cylinder Kit 488cc 12.1:1 Comp. 100mm - 11002-K01 $736.95 $700.11