ROAD DISC WHEELSETS · SIDE BY SIDE

Shimano Dura-Ace R9270 C50 vs Shimano Dura-Ace R9270 C60

The Shimano Dura-Ace R9270 C50 is 148 g lighter (1,461 g vs 1,609 g claimed per pair); both cost €1,399 per pair at our October 2026 price check. The rim depth is 50 mm on the Dura-Ace R9270 C50 and 60 mm on the Dura-Ace R9270 C60. Both share the internal width (21 mm) and the listed tyre range (25–32 mm).

ShimanoDura-Ace R9270 C50

ShimanoDura-Ace R9270 C60

SEE THE DIFFERENCE

Both on the same bike.

Drag the handle to switch between the Dura-Ace R9270 C50 (left) and the Dura-Ace R9270 C60 (right) on a Canyon Aeroad CF SLX 8 AXS. Black tyres shown for context.

Dura-Ace R9270 C50 Dura-Ace R9270 C60

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SIDE BY SIDE

Specifications.

Rows with different values are highlighted. Weights are manufacturer claims per pair.

Shimano Dura-Ace R9270 C50 and Shimano Dura-Ace R9270 C60 specifications
Specification	Shimano Dura-Ace R9270 C50	Shimano Dura-Ace R9270 C60
Claimed pair weight	1,461 g	1,609 g
Price per pair	€1,399	€1,399
Price checked	October 2026	October 2026
MSRP	€1,965	€1,965
Rim depth · front	50 mm	60 mm
Rim depth · rear	50 mm	60 mm
Internal width · front	21 mm	21 mm
Internal width · rear	21 mm	21 mm
External width · front	28 mm	28 mm
External width · rear	28 mm	28 mm
Listed tyre range	25–32 mm	25–32 mm
Rim type	Hooked	Hooked
Spokes · front / rear	24 / 24 · Steel	24 / 24 · Steel
Bearings	Steel	Steel
Warranty	3 years; conditions apply	3 years; conditions apply
Crash replacement	None	None

BEYOND THE NUMBERS

What the differences mean.

General context for the specifications where these two differ. Numbers in superscript link to the sources below each topic. How much each point matters depends on your riding, tyres and bike.

Weight: what the grams mean

The Dura-Ace R9270 C50 is 148 g lighter per pair (1,461 g vs 1,609 g, manufacturer claims).

Dura-Ace R9270 C501,461 g

Dura-Ace R9270 C601,609 g

On a steady climb only total weight counts: a gram in the wheels costs the same as a gram in the frame or a bottle.¹ A common rule of thumb is about 2 seconds per 100 metres of climbing for every kilogram, so 150 g works out at roughly 3 seconds on a 1,000 m climb.²

Rim weight matters somewhat more when you accelerate, because the rim spins as well as moves forward; physically that effect is at most about twice that of frame weight, and only while speeding up.¹ Claimed weights are measured differently from brand to brand: some include rim tape and valves, others do not, and tolerances of around ±30 g are common.³ Independent weighing usually lands close to the claim once tape and valves are accounted for.⁴

Rim depth: aerodynamics, weight and crosswinds

Rim depth: 50 mm on the Dura-Ace R9270 C50, 60 mm on the Dura-Ace R9270 C60.

Cross-sections drawn to scale from the catalogue values for outer width, internal width and depth; hooked rims show the bead hook. Simplified shape, not the manufacturer's exact profile.

Deeper rims generally reduce aerodynamic drag, which pays off most at higher speeds on flat or rolling roads, but they tend to weigh more and can be more affected by gusty crosswinds. In a BikeRadar comparison, 60 mm aero wheels were about a second per kilometre faster on the flat but slower on steep climbs than a considerably lighter set.¹

How a wheel behaves in crosswinds depends on the rim shape as well as its depth,³ which is why TOUR measures steering torque in the wind tunnel, not just drag.² Shallower rims are generally easier to handle in gusts, something lighter riders and riders on exposed roads tend to notice first.¹

WHICH ONE FITS

Choose by what matters to you.

Derived from the specifications above. This is not a performance rating.

Choose the Shimano Dura-Ace R9270 C50 if…

Low weight matters to you: 1,461 g, 148 g less than the Dura-Ace R9270 C60
You want the shallower rim: 50 mm against 60 mm

Full Dura-Ace R9270 C50 profile →

Choose the Shimano Dura-Ace R9270 C60 if…

You want the deeper rim: 60 mm against 50 mm
You prefer its look: compare both on the same bike above

Full Dura-Ace R9270 C60 profile →

Common questions.

How much lighter is the Shimano Dura-Ace R9270 C50 than the Shimano Dura-Ace R9270 C60?

148 g. The Shimano Dura-Ace R9270 C50 has a claimed pair weight of 1,461 g, the Shimano Dura-Ace R9270 C60 1,609 g. Both figures are manufacturer claims.

Do both take the same tyre widths?

Yes, the range is 25–32 mm for both. Shimano recommends tyres from 25 mm to 32 mm for both wheelsets. This is a recommendation, not an approved limit. Check the manufacturer's guidance for your exact tyre and pressure.

What is the price difference between the Shimano Dura-Ace R9270 C50 and the Shimano Dura-Ace R9270 C60?

None at our October 2026 price check: both cost €1,399 per pair.

Your next step.

Shimano Dura-Ace R9270 C50 Check my Fit → Product profile Shimano product page ↗

Shimano Dura-Ace R9270 C60 Check my Fit → Product profile Shimano product page ↗

Sources & data notes.

All values come from the Show My Bike catalogue, the same records used on the product pages. Prices checked October 2026. Some model-specific details were reviewed against the manufacturer pages. Manufacturer claims are identified as such. No independent product test is claimed, and no winner is declared.

Shimano Dura-Ace R9270 C50: manufacturer product page
Shimano Dura-Ace R9270 C60: manufacturer product page
Show My Bike product records: Shimano Dura-Ace R9270 C50 and Shimano Dura-Ace R9270 C60