Extralite SX Hubs

Extralite of Italy have chosen their name with good reason - in many categories they truly are the lightest out there. Careful engineering and material choices result in super light parts that perform. Further details on Extralite can be viewed here.

Ultrafront SX:
At 49 grams this is a little heavier than the M5 front hub, but it features larger bearings and a pre-load adjust that make it more durable and thus suitable for training as well as race wheels. This hub can be mated to a rim of your choice from Edge or elsewhere to make a superb lightweight wheel.

WEIGHT: 49g
PRICE: $198
PRICE (with Enduro hybrid ceramic bearings): $260

Ultrarear SX:
At 135g this is the lightest rear hub I know of. It uses straight pull spokes on the drive side to allow for high tension with lightweight flanges, and regular J-bend spokes on the non-drive side. Shimano or Campagnolo freehub body. With the Edge 45 clinchers this hub allows for a sub 1200g wheelset, or a sub 800g tubular climbing wheels with the Edge 1.25.

WEIGHT: 135g
PRICE: $525
PRICE (with Enduro hybrid ceramic bearings): $640