Hope Pro 5 eBike Rear 6 Bolt 12x148mm Disc Hub - Rear - 12x148mm Boost - Shimano Microspline - 6 Bolt - 32 Hole - J-Bend - Red Dropship This system sucks in cool

This system sucks in cool air like a vacuum and then expels hot air through the side and rear exhaust ports

This improves resistance to water seepage behind the film and prevents heavier

it might be a good idea to replace them

Weight: 39g

Functions:  Current/average/maximum speed

Hope Pro 5 eBike Rear 6 Bolt 12x148mm Disc Hub - Rear - 12x148mm Boost - Shimano Microspline - 6 Bolt - 32 Hole - J-Bend - Red Dropship This system sucks in coolBuilding 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