Head to head
DT Swiss GRC 1400 Dicut 42vsZipp 303 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.
vs
Fig. — rim sections, one scale
DT Swiss GRC 1400 Dicut 42Zipp 303 Firecrest
- Depth
- 2 mm apart
- 42 vs 40 mm
- External
- 2 mm apart
- 32 vs 30 mm
- Internal
- 1 mm apart
- 24 vs 25 mm
- Claimed weight
- 139 g apart
- 1,489 vs 1,350 g
- UK RRP
- £200 apart
- £2,000 vs £1,800
Rim depth
42 mm
40 mm
Effectively the same depth — this is not the axis to choose on.
Internal width
24 mm
25 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
30 mm
Governs how the rim and tyre meet the air, and frame clearance.
DT Swiss
GRC 1400 Dicut 42
RRP £2,000
UCI mass-start road
Eligible — Eligible on the rules we assess
Zipp
303 Firecrest
RRP £1,800
UCI mass-start road
Eligible — Eligible on rim height; tyre choice is restricted