This is a new set Size 6202z. 12mm 6301 PIT DIRT BIKE WHEEL ROLLER BEARING SET 6301rs 6301z 50cc 110cc PITBIKE. 12mm 6301 PIT DIRT BIKE WHEEL ROLLER BEARING 6301rs 6301z 125cc 140cc PITBIKE. Based in Cornwall, Red Circles Motorcycles is the largest importer and distributor of specialist Minibike parts in the UK.
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