Head to head
DT Swiss ARC 1100 Dicut 50vsFulcrum 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
DT Swiss ARC 1100 Dicut 50Fulcrum Speed 42
- Depth
- 8 mm apart
- 50 vs 42 mm
- External
- 0.5 mm apart
- 27 vs 26.5 mm
- Internal
- 1 mm apart
- 20 vs 19 mm
- Claimed weight
- 65 g apart
- 1,450 vs 1,385 g
- UK RRP
- £700 apart
- £2,500 vs £1,800
Rim depth
50 mm
42 mm
8 mm apart. Deeper is faster on the flat; shallower is calmer in crosswind and lighter uphill. Neither is simply better.
Internal width
20 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
27 mm
26.5 mm
Governs how the rim and tyre meet the air, and frame clearance.
DT Swiss
ARC 1100 Dicut 50
RRP £2,500
UCI mass-start road
Eligible — Eligible on the rules we assess
Fulcrum
Speed 42
RRP £1,800
UCI mass-start road
Eligible — Eligible on the rules we assess