Head to head
Shimano Ultegra WH-R8170 C36vsWinspace 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
Shimano Ultegra WH-R8170 C36Winspace Hyper 50
- Depth
- 14 mm apart
- 36 vs 50 mm
- External
- 2 mm apart
- 28 vs 30 mm
- Internal
- Identical
- 21 vs 21 mm
- Claimed weight
- 118 g apart
- 1,488 vs 1,370 g
- UK RRP
- £250 apart
- £1,400 vs £1,150
Rim depth
36 mm
50 mm
14 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
30 mm
Governs how the rim and tyre meet the air, and frame clearance.
Shimano
Ultegra WH-R8170 C36
RRP £1,400
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