ROAD DISC WHEELSETS · SIDE BY SIDE

ENVE SES 6.7 vs Zipp 404 Firecrest

The ENVE SES 6.7 is 102 g lighter (1,457 g vs 1,559 g claimed per pair); the Zipp 404 Firecrest costs €1,770 less (€1,379 vs €3,149) at our October 2026 price check. The rim depth is 60 mm front / 67 mm rear on the SES 6.7 and 58 mm on the 404 Firecrest and the listed tyre range is 25–32 mm on the SES 6.7 and 28–35 mm on the 404 Firecrest. Both share the internal width (23 mm).

ENVESES 6.7

Zipp404 Firecrest

SEE THE DIFFERENCE

Both on the same bike.

Drag the handle to switch between the SES 6.7 (left) and the 404 Firecrest (right) on a Canyon Aeroad CF SLX 8 AXS. Black tyres shown for context.

SES 6.7 404 Firecrest

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SIDE BY SIDE

Specifications.

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

ENVE SES 6.7 and Zipp 404 Firecrest specifications
Specification	ENVE SES 6.7	Zipp 404 Firecrest
Claimed pair weight	1,457 g	1,559 g
Price per pair	€3,149	€1,379
Price checked	October 2026	October 2026
MSRP	€3,498	€1,899
Rim depth · front	60 mm	58 mm
Rim depth · rear	67 mm	58 mm
Internal width · front	23 mm	23 mm
Internal width · rear	23 mm	23 mm
External width · front	30 mm	28 mm
External width · rear	30 mm	28 mm
Listed tyre range	25–32 mm	28–35 mm
Rim type	Hookless	Hookless
Spokes · front / rear	24 / 24 · Steel	24 / 24 · Steel
Bearings	Steel	Steel
Warranty	Lifetime; conditions apply	Lifetime; conditions apply
Crash replacement	Free replacement, later 30% discount Conditions ↗	Free replacement Conditions ↗

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 SES 6.7 is 102 g lighter per pair (1,457 g vs 1,559 g, manufacturer claims).

SES 6.71,457 g

404 Firecrest1,559 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: 60 mm front / 67 mm rear on the SES 6.7, 58 mm on the 404 Firecrest.

Cross-sections drawn to scale from the catalogue values for outer width, internal width and depth. 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

Different rim depths front and rear

The SES 6.7 (60 mm front / 67 mm rear) uses different rim depths front and rear.

Some wheelsets use a different rim depth front and rear, and brands disagree on the direction. Roval's Rapide CLX II paired a shallower front with a deeper rear to favour stability.¹ The newer Rapide III uses a slightly deeper front than rear, and Roval argues most of the aero benefit comes from the front wheel.² Zipp's 454 NSW rim itself varies in depth along its circumference.³

Treat a split depth as a design choice of the brand rather than an advantage in itself. If crosswinds concern you, the front rim depth is the figure to look at.

Listed tyre range: what it allows

ENVE approves tyres from 25 mm for the SES 6.7 and publishes no maximum. The 32 mm in our catalogue is a Show My Bike assumption, not a manufacturer figure. Zipp approves tyres from 28 mm to 35 mm for the 404 Firecrest.

SES 6.725–32 mm

404 Firecrest28–35 mm

An approved tyre range is the span of tyre widths a manufacturer permits for a rim, based on the ETRTO/ISO tables for tyre and rim combinations.² Not every brand publishes one: some give a recommendation only, or no maximum. The lower end is the narrowest tyre that fits that internal width safely; the upper end shows how far you can go towards wider, lower-pressure tyres for comfort and grip on rough roads or gravel, provided your frame has the clearance.⁴

In TOUR's tests, wider tyres at a pressure matched to their width roll about as easily as narrower ones on smooth surfaces and add comfort and grip on real roads, while a tyre much wider than the rim costs some aerodynamic drag.¹ Pressure calculators such as Zipp's take the rim's internal width into account as well as the tyre.³

WHICH ONE FITS

Choose by what matters to you.

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

Choose the ENVE SES 6.7 if…

Low weight matters to you: 1,457 g, 102 g less than the 404 Firecrest
You want the deeper rim: 60 mm front / 67 mm rear against 58 mm
You run tyres narrower than 28 mm: approved from 25 mm

Full SES 6.7 profile →

Choose the Zipp 404 Firecrest if…

You want to spend less: €1,379, €1,770 below the SES 6.7
You want the shallower rim: 58 mm against 60 mm front / 67 mm rear

Full 404 Firecrest profile →

Common questions.

How much lighter is the ENVE SES 6.7 than the Zipp 404 Firecrest?

102 g. The ENVE SES 6.7 has a claimed pair weight of 1,457 g, the Zipp 404 Firecrest 1,559 g. Both figures are manufacturer claims.

Which has the wider tyre range?

Both ranges are equally wide but start at different widths. ENVE approves tyres from 25 mm for the SES 6.7 and publishes no maximum. The 32 mm in our catalogue is a Show My Bike assumption, not a manufacturer figure. Zipp approves tyres from 28 mm to 35 mm for the 404 Firecrest. Check the manufacturer's guidance for your exact tyre and pressure.

What is the price difference between the ENVE SES 6.7 and the Zipp 404 Firecrest?

€1,770 at our October 2026 price check: the ENVE SES 6.7 cost €3,149 and the Zipp 404 Firecrest €1,379 per pair. Prices change; check the current offer with the retailer or manufacturer.

Which of the two has hookless rims?

Both. Use tyres the manufacturer approves for hookless rims and respect the pressure limits.

Your next step.

ENVE SES 6.7 Check my Fit → Product profile ENVE product page ↗

Zipp 404 Firecrest Check my Fit → Product profile Zipp 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.

ENVE SES 6.7: manufacturer product page
Zipp 404 Firecrest: manufacturer product page
Show My Bike product records: ENVE SES 6.7 and Zipp 404 Firecrest