HUNT 5AM Gravel Limitless Ti_UD Wheelset

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HUNT 5AM Gravel Limitless Ti_UD Wheelset

1317g	Depth	Width ext	Width int	size
1317g	F54/ R49	F45/ R38	27 mm	700c

Bearings

Freehub

Pre-Order Now. Shipping: Dec Wk 1

£2,449

We will ask for axle info after checkout.

FREE Lifetime Crash Replacement Included

Your wheels are protected by H_Care – our FREE lifetime crash replacement coverage for original owners. This protection comes automatically with your purchase. Wheel components and labour are covered. Learn more.

3 Year Warranty

All of our wheelsets are backed by a 3-year warranty when purchased directly from HUNT. Read more details here.

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Gravel racing isn’t slowing down, with race winners averaging over 35kph in key races. Higher speeds demand higher volume tyres, allowing for measurable aerodynamic gains. 5AM Gravel Limitless are engineered leveraging HUNT Patented Limitless Width Aero Technology to offer the lowest aerodynamic drag paired with the lowest system weight in its class. Independently verified by Cyclingnews through wind tunnel testing, which found the 5AM Gravel Limitless to be the fastest sub-60mm gravel wheel, tied with the Roval Terra Aero CLX.

Tyre size: Aero optimised for 45mm and 50mm tyres; also fast with 40-60mm tyres.

More details

The Purpose.

Aero at Full Volume.

HUNT engineers collaborated with top gravel athletes to develop a gravel racing wheel system that combines category-leading aerodynamic performance for wide tyres with the responsiveness of an ultralight system weight when the course tilts up. The 5AM Gravel Limitless Ti_UD delivers the lowest aerodynamic drag in its competitive set at just 1317 grams per pair, with oversized rim beads to fend off race-ending pinch flats. Through the validation process, those same riders raced the system to the podium at Unbound and SBT GRVL, along with victory at Gravel Mexico.

Informed by HUNT’s 5-Stage Aero Development process, the Aero Maximised system concentrates aerodynamic gains at the leading edge of the bike, with a wider, deeper front rim profile where it encounters clean air and offers the most aerodynamic benefit. The rear wheel is optimised for weight reduction and responsiveness, creating an ultralight system, holistically engineered for efficiency and stability at high speeds.

Fastest in the wind tunnel, lightest on the scales, tested on gravel, and proven in the world’s fastest races.

Key Features.

Limitless Width Aero Technology

HUNT patented carbon construction with Aerospace-inspired carbon fibre layup strategy
Low density structural polymer moulded between carbon layers.
Width & side-wind handling stability without weight.

Pinch Flat Protection

Extra wide rim beads (9mm front/5.5mm rear) reduce chance of pinch flats.
Made with HUNT Patented Limitless Width Aero Technology.
Adds structural strength to rim profile.

Ultralight Ti_UD Carbon Spokes

Vonoa ultralight unidirectional carbon fibre.
Fully serviceable, Titanium Ti6-4AL-4V spoke end hardware.
Just 1.7g per spoke.

Aero Maximised System

Deeper, wider front rim profile (54mm deep/45mm wide) engineered to slice through clean air.
Shallower, narrower rear rim profile (49mm deep/38mm wide) engineered for weight savings & power transfer.

Technology.

Designed from scratch by the HUNT engineering team to meet the future demands of high-speed gravel racing. Building on over ten years of aerodynamic and real-world rider testing, leveraging learnings from the 5-Stage Aero Development process, the HUNT 5AM Gravel Limitless wheel system was engineered to prioritise key performance benefits: aerodynamic drag reduction optimised for modern gravel racing tyres (45-50mm); pinch flat protection and race-ready durability; stability and predictability in changing wind conditions; and low system weight for responsiveness and climbing efficiency. These demands are achieved through front and rear-specific aero maximised wheel designs, which consider each component in the context of optimal system efficiency.

The front wheel runs in clean air, offering the greatest opportunity to reduce aerodynamic drag. By increasing rim depth and width, while minimising rotational drag with hidden spoke nipples, the 5AM Gravel maximises aerodynamic efficiency where it matters most without compromising crosswind stability. The 45mm-wide external rim profile with 9mm-wide rim beads smooths the airflow from wide gravel tyres across the rim profile. The wide, blunt profile of the bead is designed to spread impact force, preventing pinch flats.

The rear wheel encounters turbulent airflow, downstream of the front wheel and tyre, frame, and rider movement, making rear wheel aerodynamic gains less important in the context of the complete system. Rear wheel efficiency is achieved by reducing weight and maximising power transfer. A shallower, narrower rim with a 5.5mm-wide bead provides efficient transmission of every watt to the ground, while preventing pinch flats.

Among the competitive set, the 5AM Gravel Limitless Ti_UD offers the lowest aerodynamic drag with 50mm tyres, offering a 1.5-watt advantage over the ZIPP 303 XPLR SW with 50mm Vittoria Terreno T30 tyres, and a 2.31-watt advantage with the same tyre in 45mm width. Heavier rivals come close; the Roval Terra Aero and Reserve 48|53 GR tested within 0.56 and 0.21 watts of the 5AM Gravel Limitless Ti_UD with 50mm tyres, but at 1317g per pair, there’s nothing faster or lighter. Read the full white paper here.

Full Specs.

Rims

54mm deep front rim profile with a 45mm external width. 49mm deep rear profile with a 38mm external width. Hookless 27mm internal profile. Aerodynamically optimised for a 45-50mm tyre. Unique carbon fibre layup strategy, comprised of T700, T800, T1000 and a High Modulus Pyrofil HR4012M carbon. Pre-formed 3D spoke reinforcement. Designed by HUNT’s in-house Engineering Team using Computational Fluid Dynamics (CFD) and then validated using extensive rounds of wind tunnel testing. High gloss finish unidirectional carbon fibre rim.

54mm deep front rim profile with a 45mm external width.
49mm deep rear profile with a 38mm external width.
Hookless 27mm internal profile.
Aerodynamically optimised for a 45-50mm tyre.
Unique carbon fibre layup strategy, comprised of T700, T800, T1000 and a High Modulus Pyrofil HR4012M carbon.
Pre-formed 3D spoke reinforcement.
Designed by HUNT’s in-house Engineering Team using Computational Fluid Dynamics (CFD) and then validated using extensive rounds of wind tunnel testing.
High gloss finish unidirectional carbon fibre rim.

Spokes

Ti_UD VONOA carbon spokes. 20 spokes front and rear, in a 2 cross lacing pattern, non-interlacing. Titanium Ti6-4AL-4V spoke end hardware.

Ti_UD VONOA carbon spokes.
20 spokes front and rear, in a 2 cross lacing pattern, non-interlacing.
Titanium Ti6-4AL-4V spoke end hardware.

Nipples

Aluminium nipple, with a Nyloc insert. Fully serviceable, unlike bonded carbon spoke systems. Internal nipple for truing. Black anodised finish.

Aluminium nipple, with a Nyloc insert.
Fully serviceable, unlike bonded carbon spoke systems.
Internal nipple for truing.
Black anodised finish.

Bearings

Stainless steel cartridge bearings. Manufactured by TPI. CN clearance to provide the best fitment possible and long bearing life under cycling conditions. Available upgrade: CeramicSpeed Alpha ceramic ball bearings Containing a new stainless steel bearing race. Custom-made light contact seals. Covered by CeramicSpeed lifetime warranty.

Stainless steel cartridge bearings.
Manufactured by TPI.
CN clearance to provide the best fitment possible and long bearing life under cycling conditions.

Available upgrade:

CeramicSpeed Alpha ceramic ball bearings
Containing a new stainless steel bearing race.
Custom-made light contact seals.
Covered by CeramicSpeed lifetime warranty.

Front Hub

Forged and CNC’d 6061-T6 heat treated aluminium alloy body. 7075-T6 aluminium alloy axle. Captive anti-rotational keyed spoke holes. Polished anodised black finish with laser graphics. Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here.

Forged and CNC’d 6061-T6 heat treated aluminium alloy body.
7075-T6 aluminium alloy axle.
Captive anti-rotational keyed spoke holes.
Polished anodised black finish with laser graphics.
Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here.

Rear Hub

H_Ratchet 48_T DBL. Forged and CNC’d 6061-T6 heat treated aluminium alloy body. 7075-T6 aluminium alloy axle. Dual sided ratchet rings, 7.5˚ engagement. The ratchets are nickel-coated to maximise longevity, tested to 100,000 cycles at 250Nm of torque. All freehub standards accounted for. Captive anti-rotational keyed spoke holes. Toolless fitment making routine servicing a simple task. Polished anodised black finish with laser graphics. Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here.

H_Ratchet 48_T DBL.
Forged and CNC’d 6061-T6 heat treated aluminium alloy body.
7075-T6 aluminium alloy axle.
Dual sided ratchet rings, 7.5˚ engagement.
The ratchets are nickel-coated to maximise longevity, tested to 100,000 cycles at 250Nm of torque.
All freehub standards accounted for.
Captive anti-rotational keyed spoke holes.
Toolless fitment making routine servicing a simple task.
Polished anodised black finish with laser graphics.
Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here.

Axles

These wheels are available with all existing disc brake road bike axle adapter sizes. We fit the axles you need, just complete the simple form shown after checkout: Front: 12x100mm Thru-Axle, Quick Release 9x100mm Rear: 12x142mm Thru-Axle, 12x135mm Thru-Axle, 10x135mm Thru-Axle, Quick Release 9x135mm *Shimano Microspline and Campagnolo N3W is only available in 12x142mm If you are unsure what size your axles are don't worry it also includes the option to tell us your bike model and we will find out and then fit the correct axles, plus we're happy to change them later at our cost if you don't quite get it right. Please note; this form is shown after you have completed your order.

These wheels are available with all existing disc brake road bike axle adapter sizes. We fit the axles you need, just complete the simple form shown after checkout:

Front: 12x100mm Thru-Axle, Quick Release 9x100mm
Rear: 12x142mm Thru-Axle, 12x135mm Thru-Axle, 10x135mm Thru-Axle, Quick Release 9x135mm

*Shimano Microspline and Campagnolo N3W is only available in 12x142mm

If you are unsure what size your axles are don't worry it also includes the option to tell us your bike model and we will find out and then fit the correct axles, plus we're happy to change them later at our cost if you don't quite get it right. Please note; this form is shown after you have completed your order.

Tyres Info

HUNT recommends a 45-54mm tyre for best performance, tyre widths between 40mm and 60mm are also safe to use. Only use tyres suitable for hookless (TSS) rims. If unsure, please contact the tyre manufacturer. Leading brands, including Schwalbe, Continental and Vittoria, have many tyres suitable for hookless TSS rims. You must not exceed the maximum tyre pressure limits set out in the table below or the maximum limit set by your tyre manufacturer if this is lower.

HUNT recommends a 45-54mm tyre for best performance, tyre widths between 40mm and 60mm are also safe to use.
Only use tyres suitable for hookless (TSS) rims. If unsure, please contact the tyre manufacturer. Leading brands, including Schwalbe, Continental and Vittoria, have many tyres suitable for hookless TSS rims.
You must not exceed the maximum tyre pressure limits set out in the table below or the maximum limit set by your tyre manufacturer if this is lower.

High Specification Components.

Advanced Carbon Construction

5AM Gravel Limitless rims are made using a blend of T700, T800, and T1000 UD carbon fibers, with high-modulus Mitsubishi Pyrofil HR4012M - a material more common in aerospace, aviation and motorsport applications. This blend offers lateral and sidewall strength, enabling low weight without compromising durability or trueness. The high gloss finish resists dirt build up and helps minimise aerodynamic skin drag.

Ti_UD VONOA Carbon Spokes

The top of the wheel moves through the fork at twice the speed of the bike, meaning small design features add up to large aero gains. A slim frontal profile combined with elongated bladed shape improvesaerodynamic efficiency. Titanium Ti6-4AL-4V end hardware keeps weight exceptionally low, while maintaining strength and resistance to corrosion.

Hidden Spoke Nipples

Internal spoke nipples further reduce aerodynamic and rotational drag across the wheel system, while retaining the ability to true and replace spokes as needed.

H_Ratchet 48_T DBL Hub System

The H_Ratchet 48_T DBL is updated from the race-winning system developed for our 40 Limitless Gravel Aero wheelset. The ratchet system has been further improved with a new nickel coating, offering a quick 7.5° engagement angle and tested to survive over 100,000 cycles of 250Nm of torque (40% more torque than most other road and gravel-rated hubs).

Race Tyre Optimised

Optimised for aerodynamic performance and low rolling resistance with 45-50mm tyres.
27mm internal width offers optimal tyre profile, rather than overly squared profile, for better sidewall support, pinch flat protection and cornering performance.
Fully compatible with 40-60mm hookless/TSS tyres.

CeramicSpeed Alpha Bearings

Within the new stainless steel bearing race, protected by custom-made light contact seals, sit the CeramicSpeed Alpha ceramic bearings, at the heart of it all. Fast and smooth, covered by CeramicSpeed lifetime warranty.

What's in the box.

HUNT BlackShield tubeless tape fitted to wheels.
The axle adapters needed for your bike, just fill in the simple form shown after order completion, the form is also included in your order confirmation page.
Cassette spacer for 8/9/10 speed and XDR-XD compatibility.
1 x 80mm and 1 x 60mm tubeless valves.
Pair of centre-lock rings.
Pair of HUNT padded wheel bags. 
Quality control card signed by your wheel builder.

Warranty.

Limitless wheels include with H_CARE (Free Lifetime Crash Replacement) for the first owners. Read all about it here.

All HUNT wheels come with a 3-year warranty covering defects in materials or workmanship, extended to 4 years on CeramicSpeed bearings*. Coverage starts from the purchase date and applies to the original purchaser only.

Stated wheel weights: Our stated wheel weights reflect the wheelset only; without rim tape, tubeless valves or disc brake lock rings, as is industry standard. A 3% variance (lower or higher) in total system weight is normal for wheelset manufacturing.

All HUNT wheels models have to pass our harsh cobbled-rolling-road tests for rider weight limits, please see here for more details. A max system weight of 130kgs (system weight – total weight of fully kitted up rider, bike and luggage). If a rider is over 105Kgs then an experienced bike mechanic should check the wheel regularly.

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Unmatched rider support, 7 days a week. For quick and immediate access to all the help you need, try our Live Chat. Our team consists of real bike riders who are fully equipped to answer any questions and help out. See Contact Us page for more details.