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55mm Top End Gasket Set
5" on 2003-Present year CRF230F models
Requires drilling nipple holes of stock rim for installation
It may also fit other Honda MX models that use a 220mm rotor with the 106mm bolt circle
This kit works with aftermarket pegbars using YZ pegs
TB 143cc, 165cc, & 178 Race Head V2 Upgrade Kit Handlebar Kits 55mm Top End Gasket SetTB 143cc, 165cc, &178 Race Head V2 Upgrade Kit: Race Head V2 Roller rockers, 30mm intake valve, 24. 5mm exhaust valve, 27mm intake port, 23mm exhaust port (valves installed). This kit only includes our new Race Head V2 and camshaft (see Important Notes below). While the new head may appear to be the same on the outside as our other KLX110 type race head, internally it has gone through numerous changes. The addition of forged aluminum roller rocker