Head to head
Bontrager Aeolus RSL 37vsHunt 48 Limitless Aero Disc
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 37Hunt 48 Limitless Aero Disc
- Depth
- 11 mm apart
- 37 vs 48 mm
- External
- 4 mm apart
- 31 vs 35 mm
- Internal
- 0.5 mm apart
- 23 vs 22.5 mm
- Claimed weight
- 293 g apart
- 1,325 vs 1,618 g
- UK RRP
- £951 apart
- £2,100 vs £1,149
Rim depth
37 mm
48 mm
11 mm apart. Deeper is faster on the flat; shallower is calmer in crosswind and lighter uphill. Neither is simply better.
Internal width
23 mm
22.5 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
35 mm
Governs how the rim and tyre meet the air, and frame clearance.
Bontrager
Aeolus RSL 37
RRP £2,100
UCI mass-start road
Eligible — Eligible on the rules we assess
Hunt
48 Limitless Aero Disc
RRP £1,149
UCI mass-start road
Eligible — Eligible on the rules we assess