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

covering a quarter of your chainring ensuring that neither your BB nor your ring gets damaged from logs and rocks

Available in concentrate or ready to use bottles

Cons: Being small

Available in youth sizes and suitable for boys and girls

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 You can probably leave themBuilding 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