Carbon Wheel Finder

Head to head

Cadex 50 Ultra DiscvsMavic Cosmic SLR 45

Both sections drawn to one scale, from each maker's published geometry. The differences you can see in the drawing are the differences that exist.

vs
Fig. — rim sections, one scale
Cadex 50 Ultra DiscMavic Cosmic SLR 45
50453026
Depth
5 mm apart
50 vs 45 mm
External
4 mm apart
30 vs 26 mm
Internal
3.3999999999999986 mm apart
22.4 vs 19 mm
Claimed weight
101 g apart
1,349 vs 1,450 g
UK RRP
£900 apart
£2,600 vs £1,700

Rim depth

50 mm

45 mm

5 mm apart. Deeper is faster on the flat; shallower is calmer in crosswind and lighter uphill. Neither is simply better.

Internal width

22.4 mm

19 mm

The wider rim is built around a wider tyre. Match this to the tyre you actually run, not to the bigger number.

External width

30 mm

26 mm

Governs how the rim and tyre meet the air, and frame clearance.

Cadex

50 Ultra Disc

RRP £2,600

UCI mass-start road

Eligible Eligible on rim height; tyre choice is restricted

Mavic

Cosmic SLR 45

RRP £1,700

UCI mass-start road

Eligible Eligible on the rules we assess