The hub is the central part of your bike’s wheels (front and rear), which connects to the wheel’s rim via the spokes and through which the axle is fitted, enabling the wheel to freely spin on two sets of bearings.

Specification;

D041SB D442SB

Brand: NOVATEC

Name: Mountain bike hub

Type: Thru axle, Front, M15*100mm (open), Rear M12*142MM (open)

Model: D041SB-15 (front) D442SB-X12-S4S (rear)

Fork open: Front 100mm, Rear 142mm

Bearing: Front, 2 bearing, Rear, 4 bearing

Spokes: 32 Holes

Compatible with: MTB 8-speed 9-speed 10-speed 11-speed 12-speed