Head to head
Enve SES 6.7vsZipp 404 Firecrest
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
- 9 mm apart
- 67 vs 58 mm
- External
- 4.5 mm apart
- 32 vs 27.5 mm
- Internal
- 0.5 mm apart
- 23.5 vs 23 mm
- Claimed weight
- 24 g apart
- 1,540 vs 1,516 g
- UK RRP
- £1,300 apart
- £3,300 vs £2,000
Rim depth
60 / 67 mm
58 mm
6 mm apart. Deeper is faster on the flat; shallower is calmer in crosswind and lighter uphill. Neither is simply better.
Internal width
23.5 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
32 mm
27.5 mm
Governs how the rim and tyre meet the air, and frame clearance.
Enve
SES 6.7
RRP £3,300
UCI mass-start road
Not eligible — The deeper rim of the pair measures 67 mm, above the 65 mm limit.
Zipp
404 Firecrest
RRP £2,000
UCI mass-start road
Eligible — Eligible on rim height; tyre choice is restricted