At 365 grams per rim, the C-4 B-18 clincher rim is one of the lightest aluminum clincher rims you can get. American Classic makes an equally light magnesium rim, but they are only available as complete wheels and not as rims only. There are carbon clincher rims that weigh about the same, but they are almost ten times the price and you don't get the benefits of having an aluminum braking surface.

We have built these rims into 1153 gram wheels using light hubs and aero steel spokes. Check them out here.

Weight: 375 grams (average)