HONDA TRX 450R 2004-2005 HC COMPR 13,1:1. All Vertex Pistons Feature PISTON 13101-HP1-670. PIN, PISTON 13111-HP1-670. CLIP, PISTON PIN (21MM) 13112-HP1-670. RING SET, PISTON 13011-HP1-305. - All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.
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