3 x Pairs of rubber bases for size choice

You can probably leave them alone unless they're showing signs of corrosion and you want to get some freshies in there

Available in youth sizes and suitable for boys and girls

Weight: 920 grams a pair US9

Cons: Being small

Hope Pro 5 eBike Rear 6 Bolt 12x148mm Disc Hub - Rear - 12x148mm Boost - XD Driver - 6 Bolt - 32 Hole - J-Bend - Purple PLP|EMTB Optimised 3 x Pairs of rubberBuilding on Hopes 30+ years of manufacturing hubs, the Pro 5 is the combination of all their experience into a product to meet and exceed the demands of current and future bike technology. Features: Improved sealing to stop dirt ingress and to reduce drag New Labyrinth seal has zero drag for incredible freewheeling performance New Pawls Springs design to increase longevity, load capacity & a reduction of drag. 54 points of engagement with 6 pawls