How it Rides
The Reactor was built from the Nukeproof staff’s desire for a quiver-killer mountain bike that climbs well and descends without compromise.
Designed to be poppy, playful and wicked fast, the Reactor’s four-bar Horst link suspension system is supportive while climbing but an absolute hooligan on the descent. Solid mid-stroke support balanced with relatively modest anti-squat gives the Reactor an active rear end that’s shockingly supportive and efficient when pedaling uphill. Anti-squat reduces as you shift down the cassette and pick up speed, making the bike come alive on descents. Balanced anti-rise figures allow the Reactor some squat when braking hard, maintaining rider position and providing a good amount of pressure through the tire to ensure traction.
To optimize weight, strength and stiffness, the Reactor 290 Alloy’s frame is made of triple-butted 6061 aluminum alloy with seatstays molded from carbon fiber. We tailor the geometry based on wheel size, so this 29er version of the bike is optimized to take full advantage of the larger wheel’s rollover capabilities while still handling like a trail-slaying weapon.
All Reactor frames also feature a “flip chip,†which allows you to adjust the geometry from “Trail†to “Rail†mode. Trail balances optimized geometry for climbing and descending while the Rail mode emphasizes the downhill — dropping the bottom bracket 6mm and slackening the head tube angle by half a degree.
Whatever you’re in to, the Reactor will do it.
The Nukeproof Reactor 290 Alloy Comp Component Details
- Marzocchi Bomber Z2 fork & RockShox Super Deluxe Select R shock
- Shimano Deore 12-speed drivetrain
- Shimano Deore or SRAM DB8 4-piston brakes
- Sun-Ringle Duroc 35 Comp 29-inch tubeless wheels
- Maxxis Assegai 29x2.5 front tire & Dissector 29x2.4 rear tire
