Head to head
Cadex 65 DiscvsZipp 858 NSW
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.
- Depth
- 17 mm apart
- 65 vs 82 mm
- External
- 3 mm apart
- 30 vs 27 mm
- Internal
- 0.6000000000000014 mm apart
- 22.4 vs 23 mm
- Claimed weight
- 293 g apart
- 1,462 vs 1,755 g
- UK RRP
- £1,100 apart
- £2,700 vs £3,800
Rim depth
65 mm
82 mm
17 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
23 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
27 mm
Governs how the rim and tyre meet the air, and frame clearance.
Cadex
65 Disc
RRP £2,700
UCI mass-start road
Eligible — Eligible on the rules we assess
Zipp
858 NSW
RRP £3,800
UCI mass-start road
Not eligible — Rim height is 82 mm, above the 65 mm limit.