Nukeproof
Nukeproof Reactor Alloy Pro 2026
Nukeproof Reactor Alloy Pro 2026
Low stock: 2 left
SKU: SBIREANKP002
Barcode: 5400928704564
files/Nukeproof-Reactor-Alloy-Pro-2026-BRINK.jpg
08:00 PM
Couldn't load pickup availability
2026 Nukeproof Reactor - Aluminium Trail Brute
The Reactor Alloy Pro is Nukeproof’s aggressive trail bike - fast on descents, efficient on the climbs, and built to thrive on long days where terrain constantly changes. With 140 mm of rear travel, a 150 mm fork, and geometry designed to balance agility and stability, the Reactor is the “go-anywhere” platform for riders who want one bike that can do it all.
Constructed from hydroformed 6061-T6 aluminium with UD carbon seatstays, the Reactor delivers a blend of strength, stiffness and low unsprung mass. The result is precise handling, excellent tracking and suspension performance that stays active whether you’re climbing technical singletrack or pushing hard into rough, fast trails.
Aggressive Trail Geometry
The Reactor’s long-reach, slack-front-end layout provides confidence at speed, while a steep seat tube angle keeps climbing efficient and centred. It’s a bike that feels lively and manoeuvrable on tight terrain, but planted when you’re pushing into rougher lines.
Balanced, Supportive Suspension
Using Nukeproof’s updated Horst-link system, the Reactor delivers a supple initial stroke for traction, with strong mid-stroke support for pumping, turning and carrying speed. The progressive end-stroke provides control on bigger impacts, keeping the bike composed and predictable on challenging terrain.
Hybrid Alloy / Carbon Frame Construction
The 6061-T6 aluminium front triangle and chainstays provide strength and durability, while UD carbon seatstays reduce unsprung mass to improve suspension response. The combination keeps the frame stiff where needed but compliant enough for grip and comfort on longer rides.
Trail-Ready Features
Practicality matters on long days out. The Reactor Alloy Pro includes internal cable routing, durable MAX bearings, ISCG-05 mounts, generous tyre clearance and a threaded 73 mm bottom bracket for easy servicing. A short seat tube across all sizes supports long-drop posts for modern riding styles.
Who It’s For
The Reactor Alloy Pro suits riders who want a single trail bike that climbs efficiently, feels energetic on rolling terrain, and remains confident when the trail points steep and rough. From trail centres to backcountry missions, it’s built to keep pace wherever your ride takes you.
Further specification
| Detail | Applies to | Specification |
|---|---|---|
| Wheelset | All sizes | DT Swiss M1900 Spline. F: 29", 15x110mm Boost, R:29", HG Freehub, 148x12mm Boost |
| Grips | SBIREANKP001, M, SBIREANKP004, SBIREANKP005 | Nukeproof Neutron Single Lock On, Diameter - S/M: 29.6mm, L/XL/XXL: 31.8mm |
| Pedals | SBIREANKP001, M, SBIREANKP004, SBIREANKP005 | Not included ** |
| Bike Weight | SBIREANKP001, M, SBIREANKP004, SBIREANKP005 | 15.17kg/33.4lbs (Tubeless) |
Highlights
-
Frame material
Aluminium
-
Wheelsize
29"
-
Front travel
150mm
-
Rear travel
140mm
Specifications
-
Nukeproof Reactor Alloy Pro 2026
Frame
Nukeproof Reactor V2 290 alloy frame with carbon seatstays, 140mm travel, threaded 73mm bottom bracket and 148mm rear axle spacing
Fork
RockShox Lyrik Select +, Charger 3.1 RC2, 29" Boost 15x110mm Maxle Stealth, Debonair, 150mm, Gloss Black, 44mm Offset
Shock
RockShox Super Deluxe Select+ Air, 210x55mm, Bearing End, Custom Tuned with 1 Token, Rebound 55, Compression 30, 4x Lockout
Handlebar
Nukeproof Horizon V2 25mm Rise, Width - S/M780mm, L800mm, XL800mm, XXL800mm
Stem
Nukeproof Neutron AM, 45mm, black
Headset
M, S, XL, XXL: Nukeproof, 44-56 IITS
Brakes
SRAM Maven Base, Organic pads
Front rotor
M, S, XL, XXL: SRAM Centerline 2.0 180mm Rounded
Rear rotor
M, S, XL, XXL: SRAM Centerline 2.0 180mm Rounded
Shifter
M, S, XL, XXL: SRAM Eagle 90, 12-Speed MMX
Rear derailleur
Sram Eagle 90
Crankset
SRAM Eagle 90, 12-Speed, DUB, 165mm, 32T T-Type, 55mm CL
Cassette
Sram XS-1270 T-Type 10-52
Chain
M, S, XL, XXL: SRAM GX T-Type, 12-Speed Eagle, Flattop, PowerLock, 116 Links
Seatpost
Tranz-X YS108 Internal with SRAM Remote lever, S:150mm drop; M:170mm drop; L:200mm drop; XL/XXL:230mm drop
Saddle
Nukeproof Horizon SL
Front tyre
Schwalbe Magic Mary Evo, Super Trail, TLE, 62-622 / 29x 2.4" Ultra Soft
Rear tyre
Schwalbe Nobby Nic Evo, Super Trail, TLE, 62-622 / 29x 2.4" Soft
Support without excess travel
A 150mm Lyrik Select+ fork and 140mm rear-travel chassis give the Reactor room to handle technical trails while retaining its all-day riding focus.
Mechanical shifting, wide gearing
SRAM Eagle 90 brings direct-mount T-Type gearing to a cable-operated shifter. The 10-52T cassette gives this build a useful range for the climbs between descents.
![Nukeproof Reactor Alloy Pro 2026 - Brakes for technical trails [9dea90ae6b50]](http://brink.uk/cdn/shop/files/nukeproof-20261023-9dea90ae6b5043967087.jpg?v=1792755592&width=1500)
Brakes for technical trails
SRAM Maven Base brakes provide substantial stopping power for technical trails. The cockpit keeps gear and dropper controls close to hand.
A practical frame for full trail days
The Reactor pairs an aluminium front triangle and chainstays with carbon seatstays. The mixed-material chassis combines its trail-riding purpose with a threaded bottom bracket, MAX bearings and practical frame protection.