Head to head
Bontrager Aeolus RSL 51vsWinspace Hyper 50
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
Bontrager Aeolus RSL 51Winspace Hyper 50
- Depth
- 1 mm apart
- 51 vs 50 mm
- External
- 1 mm apart
- 31 vs 30 mm
- Internal
- 2 mm apart
- 23 vs 21 mm
- Claimed weight
- 80 g apart
- 1,450 vs 1,370 g
- UK RRP
- £1,050 apart
- £2,200 vs £1,150
Rim depth
51 mm
50 mm
Effectively the same depth — this is not the axis to choose on.
Internal width
23 mm
21 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
30 mm
Governs how the rim and tyre meet the air, and frame clearance.
Bontrager
Aeolus RSL 51
RRP £2,200
UCI mass-start road
Eligible — Eligible on the rules we assess
Winspace
Hyper 50
RRP £1,150
UCI mass-start road
Eligible — Eligible on the rules we assess