Comparisons4AM Limitless Ti_UD vs 5AM Limitless Ti_UD

ROAD DISC WHEELSETS · SIDE BY SIDE

Hunt 4AM Limitless Ti_UD vs Hunt 5AM Limitless Ti_UD

The Hunt 4AM Limitless Ti_UD is 56 g lighter (1,156 g vs 1,212 g claimed per pair) and €50 cheaper (€2,299 vs €2,349) at our October 2026 price check. The rim depth is 49.5 mm front / 47 mm rear on the 4AM Limitless Ti_UD and 58 mm front / 55 mm rear on the 5AM Limitless Ti_UD. Both share the internal width (23 mm) and the listed tyre range (28–50 mm).

SEE THE DIFFERENCE

Both on the same bike.

Drag the handle to switch between the 4AM Limitless Ti_UD (left) and the 5AM Limitless Ti_UD (right) on a Canyon Aeroad CF SLX 8 AXS. Black tyres shown for context.

4AM Limitless Ti_UD 5AM Limitless Ti_UD

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SIDE BY SIDE

Specifications.

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

Hunt 4AM Limitless Ti_UD and Hunt 5AM Limitless Ti_UD specifications
SpecificationHunt 4AM Limitless Ti_UDHunt 5AM Limitless Ti_UD
Claimed pair weight1,156 g1,212 g
Price per pair€2,299€2,349
Price checkedOctober 2026October 2026
MSRP€2,299€2,349
Rim depth · front49.5 mm58 mm
Rim depth · rear47 mm55 mm
Internal width · front23 mm23 mm
Internal width · rear23 mm23 mm
External width · front34.2 mm34.5 mm
External width · rear30 mm30 mm
Listed tyre range28–50 mm28–50 mm
Rim typeHookedHooked
Spokes · front / rear15 / 18 · Ti_UD VONOA carbon15 / 18 · Carbon
BearingsStainless steelSteel
Warranty3 years; conditions apply4 years; conditions apply
Crash replacementFree replacement 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 4AM Limitless Ti_UD is 56 g lighter per pair (1,156 g vs 1,212 g, manufacturer claims).

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

  1. University of Illinois physics Q&A: rotating weight
  2. Cycling Uphill: time saved per kilogram
  3. Elitewheels: what claimed weights include
  4. BikeRadar: claimed vs weighed (Shimano RS710 review)

Rim depth: aerodynamics, weight and crosswinds

Rim depth: 49.5 mm front / 47 mm rear on the 4AM Limitless Ti_UD, 58 mm front / 55 mm rear on the 5AM Limitless Ti_UD.

4AM Limitless Ti_UD · front 34.2 mm23 mm49.5 mm 4AM Limitless Ti_UD · rear 30 mm23 mm47 mm
5AM Limitless Ti_UD · front 34.5 mm23 mm58 mm 5AM Limitless Ti_UD · rear 30 mm23 mm55 mm

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

  1. BikeRadar: aero vs lightweight wheels
  2. TOUR: how wheels are tested in the lab
  3. road.cc: what wheel designers care about

Different rim depths front and rear

The 4AM Limitless Ti_UD (49.5 mm front / 47 mm rear) and the 5AM Limitless Ti_UD (58 mm front / 55 mm rear) use 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.

  1. Gran Fondo: Roval Rapide CLX II review
  2. Cyclist: Roval Rapide III launch
  3. Zipp: 454 NSW

Warranty and crash replacement

Warranty: 3 years on the 4AM Limitless Ti_UD, 4 years on the 5AM Limitless Ti_UD; crash replacement is offered for both.

A warranty covers manufacturing defects; damage from a crash or impact is usually excluded.4 Crash replacement programmes cover that case, either free of charge or as a discount on a replacement. Hunt's H_Care is one example;2 Roval repairs or replaces crash damage free for two years on US purchases and at a discount of 20–35 % elsewhere, for up to five years.3 Some brands, Zipp among them, also include riding damage in their lifetime warranty.1

Terms differ widely: many programmes apply only to the original owner, need registration within a deadline and proof of purchase, may charge shipping or fees, and depend on the region you bought in.23 Check the current conditions on the manufacturer's page before relying on them.

  1. Zipp: warranty
  2. Hunt: warranty and crash replacement
  3. Specialized: Roval warranty and crash replacement
  4. Fulcrum: manufacturer warranty
WHICH ONE FITS

Choose by what matters to you.

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

Choose the Hunt 4AM Limitless Ti_UD if…

  • Low weight matters to you: 1,156 g, 56 g less than the 5AM Limitless Ti_UD
  • You want the shallower rim: 49.5 mm front / 47 mm rear against 58 mm front / 55 mm rear
Full 4AM Limitless Ti_UD profile →

Choose the Hunt 5AM Limitless Ti_UD if…

  • You want the deeper rim: 58 mm front / 55 mm rear against 49.5 mm front / 47 mm rear
  • A longer warranty matters to you: 4 years against 3 years (conditions apply)
Full 5AM Limitless Ti_UD profile →

Common questions.

How much lighter is the Hunt 4AM Limitless Ti_UD than the Hunt 5AM Limitless Ti_UD?

56 g. The Hunt 4AM Limitless Ti_UD has a claimed pair weight of 1,156 g, the Hunt 5AM Limitless Ti_UD 1,212 g. Both figures are manufacturer claims.

Do both take the same tyre widths?

Yes, the range is 28–50 mm for both. Hunt approves tyres from 28 mm to 50 mm for both wheelsets. Check the manufacturer's guidance for your exact tyre and pressure.

What is the price difference between the Hunt 4AM Limitless Ti_UD and the Hunt 5AM Limitless Ti_UD?

€50 at our October 2026 price check: the Hunt 4AM Limitless Ti_UD cost €2,299 and the Hunt 5AM Limitless Ti_UD €2,349 per pair. Prices change; check the current offer with the retailer or manufacturer.

Your next step.

Hunt 4AM Limitless Ti_UD Check my Fit → Product profile Hunt product page ↗
Hunt 5AM Limitless Ti_UD 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.