HK1612 PIT BIKE SWING ARM NEEDLE BEARING 12mm x 22mm x 16mm fits 140cc 160cc. HK1612 PIT BIKE SWING ARM NEEDLE BEARING 12mm x 22mm x 16mm fits 125cc 140cc. Based in Cornwall, Red Circles Motorcycles is the largest importer and distributor of specialist Minibike parts in the UK.
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