Hope Pro 5 Rear 6 Bolt 12x148mm Disc Hub - Rear - 12x148mm Boost - Shimano Microspline - 6 Bolt - 28 Hole - J-Bend - Black YGroup_7033461440557 Axle sizes:

Axle sizes:

1-inch hex drive at one end and 16-notch 44mm bottom bracket tool or centerlock rotor tool at the other end

Head: TwinHead™ w/ air release button & x-long hose Fits Presta / Schrader / Dunlop valves

How does it mount: Your Samsung phone slips into an external case that has a Quadlock mounting receiver on the back of it

Hope Pro 5 Rear 6 Bolt 12x148mm Disc Hub - Rear - 12x148mm Boost - Shimano Microspline - 6 Bolt - 28 Hole - J-Bend - Black YGroup_7033461440557 Axle sizes:Building 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: Sealed Stainless Steel cartridge bearings New hub body profile for increased stiffness without adding weight Standard 6 bolt disc fitting Larger spoke flange to enable stiffer wheel builds Unsurpassed reliability Available in Black, Silver, Red, Blue,