Bicycle hubs play the role of connecting spokes and axles, is a relatively important part of the bike. The Novatec road bike hubs are lightweight, durable 

Specifications:

Road Bike Hub Model: Novatec A171SB/A172SB
Axle Material: ALLOY
Sealed Bearings: front 2 / rear 4
O.L.D.: front 100mm / rear 130mm
Weight: Front (113g/0.25lb); Rear (272g/0.60lb); a Pair (385g/0.85lb)
Spoke Holes: Front 20 Holes/Rear 24 Holes
Color: Black
Cassette body: stainless steel (shim. 8/9/10/11s)

Package include: Front hub rear hub, front quick release rear quick release, washer for 12 speeds flywheel