Extralite UltraRear SX Rear:28 Hole Womens specific design - 157mm

Womens specific design - 157mm rear width

Long Hi Modulus fibres run the length of bar for strength and durability

A 4 bolt 1piece clamp is easy to install

They have a bulged profile that manages cross winds far more efficiently that typical v-section rims

Extralite UltraRear SX Rear:28 Hole Womens specific design - 157mmBoth internal and external bearings are ABEC 5's and high tech cnc'ing provide some of the smoothest and most gorgeous looking hubs in the industry. 30T Titanium pawls provide very precise engagement helping out with sprinting or climbing duties. For such a ridiculously light hub, these are the key to some of the stiffest and lightest wheels available, the specific axle ends increase the interface to the dropout giving a larger clamping surface area