Head to head
Enve SES 4.5vsFulcrum Speed 42
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
Enve SES 4.5Fulcrum Speed 42
- Depth
- 14 mm apart
- 56 vs 42 mm
- External
- 5.5 mm apart
- 32 vs 26.5 mm
- Internal
- 6 mm apart
- 25 vs 19 mm
- Claimed weight
- 47 g apart
- 1,432 vs 1,385 g
- UK RRP
- £1,400 apart
- £3,200 vs £1,800
Rim depth
50 / 56 mm
42 mm
11 mm apart. Deeper is faster on the flat; shallower is calmer in crosswind and lighter uphill. Neither is simply better.
Internal width
25 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
32 mm
26.5 mm
Governs how the rim and tyre meet the air, and frame clearance.
Enve
SES 4.5
RRP £3,200
UCI mass-start road
Eligible — Eligible on rim height; tyre choice is restricted
Fulcrum
Speed 42
RRP £1,800
UCI mass-start road
Eligible — Eligible on the rules we assess