Honda CR250 1997-2001 Phathead cylinder head kit GASGAS Athena145 9cc (100+ octane)

Athena145 9cc (100+ octane)

IT175 IT490 TT600 1982

XR80/XR100  88-00

6061 T6 billet aluminum body

7cc (100+ octane)

Honda CR250 1997-2001 Phathead cylinder head kit GASGAS Athena145 9cc (100+ octane)Honda CR250 Phathead cylinder head kit 1997 2001 Red anodize will be available soon. We have a batch in process Chamber selection: HF21 17. 4cc Stock compression HF22 16. 4cc (95+ octane) HF23 15. 5cc (100+ octane) HF24 14. 4cc (105+ octane) Phathead Kits include a head shell with one combustion chamber, two sets of o rings, cylinder head nuts, copper washers, some stickers for your bike and tool box and installation instructions.. Phathead cylinder