Hunt has utterly revamped their aerodynamic Limitless Gravel wheels, now with new lighter front- and rear-specific rims and the choice for ultralight & stiff carbon spokes or typical aero metal spokes, and metal or ceramic bearings. Any approach you take a look at it, the brand new gravel racing wheels are quicker than ever with wider, now-hookless inside widths optimized for larger gravel tires. And they’re lighter in addition – shedding as much as 220g and bleeding into ultralight territory at simply 1328g for an off-road-ready aero wheelset!
Hunt 40 Limitless Gravel Aero optimized carbon racing wheels
The subsequent evolution of their aerodynamically optimized Limitless household, these new Hunt 40 Limitless Gravel Aero wheels go large on fats tire velocity. Whereas many aero wheels goal most aerodynamic effectivity, Hunt realizes that aero gravel race wheels should strike a compromise of light-weight, aero effectivity, and flexibility. So that they got down to design probably the most aero mid-depth carbon wheelset they might whereas using 40mm or 45mm tires over tough off-road tracks.
Their result’s a two-pronged method – a barely shorter, wider & heavier entrance wheel to chop into undisturbed airflow and an incrementally taller, narrower & extra sturdy rear wheel to observe behind in turbulent air however supporting extra of the rider+bike weight. Each entrance & rear at the moment are hookless with straighter sides, with wider 4.5mm tubeless-ready beads which can be extra proof against pinch flatting because of the bigger radius of their edges that unfold out forces, even if you bottom-out towards a pointy edge.
Their final objective was to greatest their already “class-leading aerodynamic efficiency of the 42 Limitless Gravel Aero” wheels whereas considerably decreasing weight. Hunt labored on R&D for these new 40 LGA wheels for 3 years aiming for enchancment in 4 efficiency metrics: aerodynamic effectivity, aerodynamic stability, system weight, and tire form.
Aerodynamic efficiency
Hunt says the brand new wheels ship a brand new in-class benchmark for aerodynamic efficiency-to-weight and aerodynamic efficiency-to-depth efficiency.
“With a 45mm Schwalbe G-One AR tyre the 40 LGA UD produced the second lowest aerodynamic drag after the 3T Discus 45/40 (0.34W distinction). The 40 LGA UD produced decrease drag than the Reserve 40/44, DT Swiss GRC 1400 SPLINE and the Zipp 303 Firecrest (0.5W, 1.04W and 1.95, respectively).
With a 40mm Schwalbe G-One AR tyre the 40 LGA UD produced the second lowest aerodynamic drag after the 3T Discus 45/40 (0.67W distinction). The 40 LGA UD produced decrease drag than the DT Swiss GRC 1400 SPLINE, Zipp 303 Firecrest and CADEX 35 AR (0.01W, 1.38W and a pair of.06 respectively).
For an all-round gravel wheel[set], the 40 LGA UD affords the quickest total bundle with each tyre sizes thought-about, however particularly with the 45 mm tyre. The one wheel persistently quicker than it, the 3T Discus 45/40, achieves the aero effectivity with 320g in further mass. The 40 LGA is quicker than each the ENVE 3.4 and Reserve 40/44, while additionally being lighter.“
Hunt R&D breakdown
Learn Hunt’s newest full Limitless Gravel Aero growth White Paper, right here. It’s a enjoyable one to geek out on if you wish to see how they got here up with this last design by means of a mixture of trial & error and intensive wind tunnel testing!
“Whereas weighing simply 1328 grams with UD Carbon spoke know-how, the brand new 40 Limitless Gravel Aero with a 45mm Schwalbe G-One AR tyre affords a 0.39-watt financial savings in contrast the previous 42 Limitless with a 45mm tyre. In comparison with related wheels within the mid-depth class, the 40 Limitless aerodynamically outperforms the related competitor wheels as much as and together with 45mm in depth, when mounted with fashionable 45mm gravel tyres. When aerodynamic drag-to-weight and aerodynamic drag-to-depth ratios are thought-about, the 40LGA considerably outperforms the aggressive set.“
Gravel Race Weight Financial savings
The earlier technology 42 Limitless Gravel Disc wheels have been already fairly mild at 1548g, at the very least mild on the time for aero gravel wheels – by benefiting from Hunt’s distinctive low-density polymer to fill out that fats rim profile with out including tons of pointless weight. However Hunt-sponsored gravel racers demanded lighter wheels to offset the load of the large tires they have been racing. And that rotating weight was very tangibly felt over lengthy races, with every acceleration, whether or not out of corners, to shut a niche, or simply after navigating some technical part.
So now, Hunt take it one other step additional. Similar to of their Sub50 Limitless aero street wheels, Hunt realized that front- & rear-specific designs may assist them enhance aerodynamic effectivity whereas shedding substantial weight. And naturally, the Sub50s reinforce the advantages of carbon spokes. The shift to Hunt’s top-tier TaperLock full UD Carbon spokes saved a bunch of weight, however so did that carbon layup refinement within the rims, and lighter hubs, too. Even the metal spoke wheelsets are greater than 110g lighter than the earlier technology.
Plus, these carbon spokes “supply 6% higher lateral responsiveness in comparison with metal spoke equivalents with considerably much less weight (2.7g per spoke), permitting the design group to scale back the variety of spokes used within the system”. Hunt’s TaperLock carbon spokes nonetheless retain typical nipples, so the wheels are nonetheless simple to true and repair.
Tech particulars
40 Limitless Gravel Aero Disc UD Carbon Spoke:
front- & rear-specific large hookless tubeless rims
wider 4.5mm large bead for higher pinch flat resistance
40mm deep entrance is 27mm large inside, 36mm exterior
41mm deep rear is 26mm large inside, 35mm exterior
aerodynamically optimized for 40-45mm gravel tires
constructed with 20 (entrance & rear) ultralight TaperLock UD Carbon spokes & typical alloy nipples
Hunt-branded H_Ratchet DBL hubs with 48T ratchet for quick 7.5° engagement
customary double-sealed chrome steel cartridge bearings
optionally available CeramicSpeed coated ceramic bearings
1328g full wheelset
40 Limitless Gravel Aero Disc Metal Spoke:
similar front- & rear-specific wide-bead hookless tubeless carbon rim
entrance: 40mm deep, 27mm large inside, 36mm exterior
rear: 41mm deep, 26mm large inside, 35mm exterior
constructed with 24 (entrance & rear) elliptical aero Pillar Wing 20 spokes & alloy nipples
H_Ratchet DBL hubs: 48T ratchet, 7.5° engagement
double-sealed stainless cartridge bearings customary
1431g full wheelset
Hunt 40 Limitless Gravel – Pricing, choices & availability
These new utterly revamped and lighter aerodynamic Hunt 40 Limitless Gravel bike wheels are available three completely different variations now, all sharing the identical 40 $ 41mm deep carbon rim profiles.
Probably the most reasonably priced of the bunch is the metal spoke model for $1850 / 1850€ with stainless bearings as effectively, at a claimed 1431g. However if you would like the majority of the brand new weight financial savings, you wish to improve to the carbon spoke variations.
With a weight declare of simply 1328g for the set, the Hunt 40 Limitless Gravel Aero Disc UD Carbon Spoke wheels promote for $2280€ with chrome steel bearings. Or you possibly can improve these to CeramicSpeed coated ceramic bearings for an additional $710€.
All variations can be found beginning this week for pre-order of the primary small batch that can land at UK, US & EU distribution warehouses from the third week of November, and will make it out to early patrons by the top of that month. In addition they all get Hunt’s H_Care Lifetime Crash Substitute assure, too. It doesn’t matter what occurs, Hunt says they’ll deal with you, repairing or changing broken wheels freed from cost, if wanted. Snap up a set at:
HuntBikeWheels.com
