Keep an eye on our closed dates page for order shipment

CJR Performance

BBR 138CC Big Bore kit

$219.95

Description

Easy bolt-on power for your CRF125F. This is the largest bore kit available that does not require boring your engine cases for additional cylinder sleeve clearance. New aluminum cylinder with steel sleeve, lightweight piston kit and gaskets are included in this complete and ready to go kit.

  • Aluminum cylinder with steel sleeve
  • 55mm lightweight aluminum piston kit
  • Gasket kit including cylinder head and cylinder base gaskets
  • 10.25:1 compression ratio
CJR Performance

BBR 138CC Big Bore kit

$219.95

Easy bolt-on power for your CRF125F. This is the largest bore kit available that does not require boring your engine cases for additional cylinder sleeve clearance. New aluminum cylinder with steel sleeve, lightweight piston kit and gaskets are included in this complete and ready to go kit.

  • Aluminum cylinder with steel sleeve
  • 55mm lightweight aluminum piston kit
  • Gasket kit including cylinder head and cylinder base gaskets
  • 10.25:1 compression ratio
View product
Back to top