The CJR Bore Kit is available in 55mm or 58mm. These kits are for the 2019+ CRF110*
Picture shows a 4V piston but this is for the 2V as noted here in the description.
58mm piston are made for the 28/24 big valve cjr heads.
2V Bore Kit Includes:
- CNC Billet Cylinder - 55mm or 58mm (Both will require case boring)
- Oil Cooler Block Off Banjo
- Cometic .020" Metal Base Gasket (You may need to purchase extra to get proper piston to valve clearances)
- Cast 2V Piston (55mm or 58mm)
- Piston Pin
- Copper Head Gasket
*Professional installation required!!!
NOTE - THIS IS AN AFTERMARKET PERFORMANCE PART BUILT FOR RACING PURPOSES ONLY. CJR IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION. RETURNS NOT AVAILABLE FOR THIS ITEM - ALL SALES FINAL