ROAD DISC WHEELSETS · SIDE BY SIDE

aerycs Aero WT S 50 vs Hunt 4AM Limitless

The aerycs Aero WT S 50 is 1 g lighter (1,282 g vs 1,283 g claimed per pair) and €560 cheaper (€1,399 vs €1,959) at our October 2026 price check. The rim depth is 50 mm on the Aero WT S 50 and 49.5 mm front / 47 mm rear on the 4AM Limitless and the listed tyre range is 28–35 mm on the Aero WT S 50 and 28–50 mm on the 4AM Limitless. Both share the internal width (23 mm).

aerycsAero WT S 50

Hunt4AM Limitless

SEE THE DIFFERENCE

Both on the same bike.

Drag the handle to switch between the Aero WT S 50 (left) and the 4AM Limitless (right) on a Canyon Aeroad CF SLX 8 AXS. Black tyres shown for context.

Aero WT S 50 4AM Limitless

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SIDE BY SIDE

Specifications.

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

aerycs Aero WT S 50 and Hunt 4AM Limitless specifications
Specification	aerycs Aero WT S 50	Hunt 4AM Limitless
Claimed pair weight	1,282 g	1,283 g
Price per pair	€1,399	€1,959
Price checked	October 2026	October 2026
MSRP	€1,399	€1,959
Rim depth · front	50 mm	49.5 mm
Rim depth · rear	50 mm	47 mm
Internal width · front	23 mm	23 mm
Internal width · rear	23 mm	23 mm
External width · front	28.6 mm	34.2 mm
External width · rear	28.6 mm	30 mm
Listed tyre range	28–35 mm	28–50 mm
Rim type	Hooked	Hooked
Spokes · front / rear	24 / 24 · Steel	20 / 24 · Steel
Bearings	Steel	Steel
Warranty	3 years; conditions apply	3 years; conditions apply
Crash replacement	40% 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.

Rim depth: aerodynamics, weight and crosswinds

Rim depth: 50 mm on the Aero WT S 50, 49.5 mm front / 47 mm rear on the 4AM Limitless.

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

Different rim depths front and rear

The 4AM Limitless (49.5 mm front / 47 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

aerycs recommends tyres from 28 mm for the Aero WT S 50. The 35 mm maximum is the figure aerycs supplied to Show My Bike; its website states a recommendation only. Hunt approves tyres from 28 mm to 50 mm for the 4AM Limitless.

Aero WT S 5028–35 mm

4AM Limitless28–50 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

Spoke count

Spoke count front/rear: 24/24 on the Aero WT S 50, 20/24 on the 4AM Limitless.

Close-up of the aerycs Aero WT S 50 hub and spokes — **Aero WT S 50** 24 front / 24 rear · steel

Close-up of the Hunt 4AM Limitless hub and spokes — **4AM Limitless** 20 front / 24 rear · steel

Fewer spokes save weight and can reduce drag slightly,¹ but each spoke then carries more load and a broken spoke is more likely to leave the wheel unrideable.³ Wheels with low spoke counts usually state a maximum system weight;² compare it with your own weight plus bike and luggage rather than judging by spoke count alone.

WHICH ONE FITS

Choose by what matters to you.

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

Choose the aerycs Aero WT S 50 if…

You want to spend less: €1,399, €560 below the 4AM Limitless
You prefer its look: compare both on the same bike above

Full Aero WT S 50 profile →

Choose the Hunt 4AM Limitless if…

You plan to run tyres wider than 35 mm: approved up to 50 mm
You prefer its look: compare both on the same bike above

Full 4AM Limitless profile →

Common questions.

How much lighter is the aerycs Aero WT S 50 than the Hunt 4AM Limitless?

1 g. The aerycs Aero WT S 50 has a claimed pair weight of 1,282 g, the Hunt 4AM Limitless 1,283 g. Both figures are manufacturer claims.

Which has the wider tyre range?

The Hunt 4AM Limitless. aerycs recommends tyres from 28 mm for the Aero WT S 50. The 35 mm maximum is the figure aerycs supplied to Show My Bike; its website states a recommendation only. Hunt approves tyres from 28 mm to 50 mm for the 4AM Limitless. Check the manufacturer's guidance for your exact tyre and pressure.

What is the price difference between the aerycs Aero WT S 50 and the Hunt 4AM Limitless?

€560 at our October 2026 price check: the aerycs Aero WT S 50 cost €1,399 and the Hunt 4AM Limitless €1,959 per pair. Prices change; check the current offer with the retailer or manufacturer.

Your next step.

aerycs Aero WT S 50 Check my Fit → Product profile aerycs product page ↗

Hunt 4AM Limitless Check my Fit → Product profile Hunt 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.

aerycs Aero WT S 50: manufacturer product page
Hunt 4AM Limitless: manufacturer product page
Show My Bike product records: aerycs Aero WT S 50 and Hunt 4AM Limitless