Nukeproof Horizon Pro Rear Wheel
Nukeproof have a proud history in creating high performance hubs and wheels, from the legendary carbon-shelled Atom Bomb hubs in the 1990’s to the hugely successful Generator, Neutron, and Horizon wheelsets.
The Horizon V2 wheels, launched in 2020, were a ground-up design which elevated Nukeproof wheels to the next level of performance and value. Successfully campaigned in both the Enduro and Downhill World Cup with the Nukeproof-SRAM Factory Team, these wheels have been a huge favorite with weekend warriors and hard-charging privateers alike. Key reasons include the strength, reliability, and serviceability of the V2. But here at Nukeproof we are always looking for the next step in performance.
Welcome to the Horizon PRO
Designed as an all-new wheelset created for riders who are looking for the ultimate alloy trail wheel. Using the Horizon V2 as a base, our designers took a fine-tooth comb to the Horizon V2 to make several incremental improvements. The main aim of the PRO was to create a lighter wheelset for trail and enduro riders.
The result is a ground up design featuring an all-new front and rear wheel. The PRO wheels are lighter, more compliant and using an all-new high performance ratchet engagement hub for the rear wheel. In raw terms, the Horizon PRO offers riders a 9-10% (depending on wheel size combination) weight reduction over our Horizon V2 wheelsets.
This makes the Horizon PRO the perfect wheel for Trail and Enduro riders who are looking for are looking for the ultimate alloy wheelset.
- Lighter Weight
- New 54T Ratchet
- Double Butted Straight-Pull Spokes
- Horizon Pro Straight Pull Hubs
- Full Enduro Bearings
- Super Tough Anodized Finish to Rim and Hubs
New Nukeproof Horizon Pro Hub
At the heart of the Horizon PRO is an all-new hub housing a 54T engagement ratchet mechanism. Why move to a ratchet? Because the compact dimensions of the ratchet system allow for reduction and optimization of the overall hub dimension, thus saving weight and offering a rapid and smooth engagement.
To further reduce the overall dimensions of the hub, double butted straight-pull spokes (2.0mm-1.8mm-2.0mm) are used. These spokes allow further optimizing of the hub shell dimensions by machining any unrequired material.
With the ratchet system, engagement of each tooth is simultaneous, distributing the force across a larger surface area evenly. This reduces wear and ensures reliability.
The result is a sleek shell that looks stunning, hugs the axle, and is strong and reliable. The hub is fully serviceable, with all spare parts available.
Freehub Driver Options
Hand-Built and Tensioned
To further reduce weight, thanks to the increased tension and strength by using straight pull spokes (vs a J-Bend), the overall spoke count can be reduced to 28. Available in 12x148mm Boost only.
Each Horizon PRO is laced by hand in a 3x spoke pattern. The Horizon PRO rim is made from dynamically aged magnesium-silicon enriched alloy blend. This alloy produces the stiffness and hardness like 7-series alloy, but with the ductility and yield properties of a 6-series alloy. Each rim is sleeved to join to ensure a strong and consistent level of strength around the rim. Overall, this gives means the Horizon PRO offers an incredible blend of stiffness, compliance, strength, and weight.
The Horizon PRO rim is designed to offer maximum strength, comfort and grip from 2.3" to 2.5" tires. Numerous lab and trail tests led to the use of a 30mm internal width rim to optimize the tyre profile of most modern tires.
To support spare parts for riders, the front and rear wheels share the same rim and straight pull spoke design. Each rim has a tough anodized black sandblasted finish with silver decals to match the hub.
Enduro ABEC 5 Bearings
After testing various brands of bearings, Nukeproof chose to use Enduro ABEC 5 bearings in the rear wheel. These bearings have the “LLU/LLB” seal type, which uses two lips that make light contact in a groove to create a labyrinth where the water or dirt has a more difficult time to penetrate. LLU seals are similar, only the contact pressure or interference fit is greater to seal better. Enduro bearings have 80% grease fill on both sides, whereas most other bearings have 35% grease fill on one side. This delivers full coverage, so there are no dry areas as well as avoiding metal on metal contact or wear. Note: the axle may feel tight when new but will free up when ridden.
What's Included in the Box?
All wheels are sold individually, allowing riders to pick wheels to suit their frame. Wheels come taped with tubeless valve installed, so all you need to do is fit your tire and add sealant. The tubeless valve supplied is compatible with Nukeproof ARD and other tire inserts, and the presta cap has a core remover built in.
A full range of spare parts are available to service your hub in the future.
Click here for a Rear Hub Service Procedure.
Click here for a Exploded Diagrams & Spoke Length Chart.
- Rim Material: Alloy Nukeproof Blend
- Use: MTB, All Mountain, and Enduro
- Spacing: 148x12mm
- Freehub Options: Shimano HG, Shimano Microspline and SRAM XD
- Wheel Size: 27.5" or 29" options
- Inner Rim Width: 30mm
- Outer Rim Width: 35mm
- Rim Height: 21.6mm
- Tubeless Ready: Yes, pre-taped and valve supplied
- Spoke Count: 28
- Spoke Type: Straight Pull Double Butted 2.0mm - 1.8mm - 2.0mm
- Disc Mount: 6-Bolt
- Lacing Pattern: 3x
- Build: Hand built
- Single or Pair: Single
- Weight: 27.5" MS - 943g / 29" MS - 988g (without valves)
California Proposition 65 Warning
This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.