Head to head
Reserve 52|63vsZipp 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.
vs
Fig. — rim sections, one scale
Reserve 52|63Zipp 404 Firecrest
- Depth
- 5 mm apart
- 63 vs 58 mm
- External
- 3.5 mm apart
- 31 vs 27.5 mm
- Internal
- 1 mm apart
- 24 vs 23 mm
- Claimed weight
- 34 g apart
- 1,550 vs 1,516 g
- UK RRP
- £300 apart
- £1,700 vs £2,000
Rim depth
52 / 63 mm
58 mm
Effectively the same depth — this is not the axis to choose on.
Internal width
24 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
31 mm
27.5 mm
Governs how the rim and tyre meet the air, and frame clearance.
Reserve
52|63
RRP £1,700
UCI mass-start road
Eligible — Eligible on the rules we assess
Zipp
404 Firecrest
RRP £2,000
UCI mass-start road
Eligible — Eligible on rim height; tyre choice is restricted