Vertex Top End Kit 4T CRF150R Compr 11.7:1 12-22 (65.98mm) Motocross Performance. We are an authorised distributor for Vertex products. Honda 4T CRF150R Compr. 11.7:1 12-22 (65.98mm) For 4 Stroke Engines Piston Size: 65.98mmIf you order before 12PM we'll aim to dispatch same day from our UK warehouse. This product comes with free 60-day no quibble returns (UK only).
eBay