Use standard M8 chainring bolts

When you do upgrade

Has a key ring holder

easy application and less contamination risk

Topeak Joe Blow Mountain X Floor Pump PDP|Option Use standard M8 chainring boltsThe Topeak Joe Blow Mountain X Floor Pump is a mountain bike specific pump that claims to inflate tyres tubes 50% faster than your standard bike pump. Who's this item for: Riders who only have MTB's in their fleet and don't want to waste precious trail time pumping up their tyres. Materials: The barrel and base are made from painted steel. The handle is oversized and padded for comfort. Gauge type: 3" analogue gauge. Gauge location: Middle mounted to