Head to head
Black Inc Forty FivevsPrinceton CarbonWorks Wake 6560
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.
- Depth
- 20 mm apart
- 45 vs 65 mm
- External
- 0.5 mm apart
- 30 vs 29.5 mm
- Internal
- 1.5 mm apart
- 22.5 vs 21 mm
- Claimed weight
- 91 g apart
- 1,385 vs 1,476 g
- UK RRP
- £900 apart
- £2,000 vs £2,900
Rim depth
45 mm
60 / 65 mm
18 mm apart. Deeper is faster on the flat; shallower is calmer in crosswind and lighter uphill. Neither is simply better.
Internal width
22.5 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
30 mm
29.5 mm
Governs how the rim and tyre meet the air, and frame clearance.
Black Inc
Forty Five
RRP £2,000
UCI mass-start road
Eligible — Eligible on the rules we assess
Princeton CarbonWorks
Wake 6560
RRP £2,900
UCI mass-start road
Check before racing — Published height is 65 mm, but this rim's depth varies around its circumference. At the limit that needs measuring at its deepest point rather than taken from the nominal figure.