Onyx Fat Bike Rear Hub - 12 x 197mm 6-Bolt XD Black 32H CheckoutSpec= Tall allowing a skier to adjust

allowing a skier to adjust the binding position while attached to the skis

Extra wide top gripper distributes pressure and the low-profle bottom gripper keeps pads in place

Number of Chainrings No Rings No Spider IncludedDrivetrain Speeds 12Drivetrain Speeds 13Chainring BCD Direct Mount SRAM 8-BoltChainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm ChainstayChainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm ChainstayColor CarbonCrank Length (mm) 170Crank Intended Use RoadCrank Intended Use GravelBB Included NoPedal Spindle 9/16"Spindle Interface Type SRAM DUBDefined Color Carbon

offering a soft hydraulic cushion that reduces harsh bottom out

Measure the child's height in cm - that is how these are sized

Onyx Fat Bike Rear Hub - 12 x 197mm 6-Bolt XD Black 32H CheckoutSpec= Tall allowing a skier to adjustMachined to the tightest tolerances. Onyx hubs use sprag internals for strength extremely low rolling resistance and infinite points of engagement. All Onyx hubs come standard with ceramic hybrid bearings so there is no need to upgrade. Ceramic hybrid bearings 7075 Aluminum Hub Shell Adjustable preload Titanium bolts Extremely low rolling resistance 5 year limited warranty Made in the USA Flange Diameter, Left 60 Rear Axle 12mm Thru x 197mm Flange