Cam shaft tuning G4 Big Bore XT500 / SR 500

Tuning cam shaft, Yamaha XT & SR 500, type G4

use with a big bore engine – 570 cc or more

• Use with heavy duty valve spring set.
• Use with hardblock valve rocker arm

price is with exchange original camshaft, only in good condition !

without exchange from original cam, possible. You pay 275 euro extra.