Head to head
Shimano Dura-Ace WH-R9270 C50vsVision Metron 45 SL
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
Shimano Dura-Ace WH-R9270 C50Vision Metron 45 SL
- Depth
- 5 mm apart
- 50 vs 45 mm
- External
- 0.5 mm apart
- 28 vs 28.5 mm
- Internal
- Identical
- 21 vs 21 mm
- Claimed weight
- 58 g apart
- 1,461 vs 1,519 g
- UK RRP
- £800 apart
- £2,400 vs £1,600
Rim depth
50 mm
45 mm
5 mm apart. Deeper is faster on the flat; shallower is calmer in crosswind and lighter uphill. Neither is simply better.
Internal width
21 mm
21 mm
Identical — both suit the same tyre widths.
External width
28 mm
28.5 mm
Governs how the rim and tyre meet the air, and frame clearance.
Shimano
Dura-Ace WH-R9270 C50
RRP £2,400
UCI mass-start road
Eligible — Eligible on the rules we assess
Vision
Metron 45 SL
RRP £1,600
UCI mass-start road
Eligible — Eligible on the rules we assess