Nukeproof Reactor Carbon 290

From concept to kinematics, geometry to spec, the Nukeproof Reactor Carbon 290 was built from the ground up to be the ultimate aggressive trail bike. It scales technical ascents with surgical precision but truly awakens when pointed down the fall line.

Crafted entirely from a meticulously engineered UD carbon fiber chassis, spanning both the front and rear triangles, including the chain and seat stays. It delivers an uncompromising blend of featherweight agility and bombproof lateral stiffness.

Made for long days in the saddle, it’s your go-anywhere trail weapon ready for epic adventures where 1,000m climbs leads to 1,000m descents. Whatever the mountain throws your way, the Reactor 290 Carbon is armed to handle it.

Mastering the intersection of stiffness, compliance, and strength, the Reactor Carbon relies on a fully unified UD carbon architecture. By utilizing premium carbon fiber for the entire frame, the chassis keeps unsprung mass exceptionally low and dynamic response razor-sharp. It transfers wattage instantly while filtering out the high-frequency trail chatter that causes fatigue on all-day epics. But the true magic lies in its adaptability. The proprietary two-position "Trail or Rail" flip-chip allows you to manipulate handling on demand. Run it in Trail mode for a balanced, highly efficient pedaling platform, or drop it into Rail mode to slam the bottom bracket and slacken the head angle for maximum cornering authority. The versatility even extends to your wheel size: the standard 290 chip can be seamlessly swapped for a 297 MX (mullet) Rail chip, ensuring the geometry and kinematics remain perfectly optimized whether you're rolling on dual 29-inch hoops or a mixed-wheel setup.

The Reactor Carbon is anchored by a progressive geometry chart that balances nimble agility with all-day pedaling efficiency. A long, low, and slack posture guarantees absolute confidence on high-speed descents, while the steepened effective seat tube angle places you in the optimal biomechanical position to conquer punishing climbs. Its four-bar Horst Link platform pushes 140mm of rear travel, meticulously tuned for off-the-top suppleness to maximize traction, backed by a robust mid-stroke to keep the bike popping out of corners and lively in technical terrain. As you push deeper into the stroke, the anti-squat curve deliberately drops off, isolating pedal kickback and keeping the chassis composed through the roughest chunk and under heavy braking. Combined with the on-the-fly adaptability of the flip-chip, this is a true all-mountain chameleon, capable of shifting from a nimble alpine climber to a planted, confidence-inspiring descender whenever the trail demands it.

Every millimeter of the Reactor is hyper-focused on the rider’s real-world experience, blending elite performance with mechanic-friendly practicality. The front triangle easily swallows a full-size 750ml bottle, while a dedicated top tube accessory mount handles your backcountry spares. We’ve carved out massive, mud-proof clearance for high-volume 2.6-inch rubber to thrive in atrocious conditions, and specced premium MAX bearings across all pivots for maximum longevity. Servicing is beautifully straightforward: accessible hardware, standard Allen key fittings, and laser-etched torque specs eliminate workshop headaches. The fully guided tube-in-tube internal routing delivers a pristine, silent aesthetic, while custom 3D-contoured rubber armor silences chain slap and guards against violent rock strikes. Thoughtfully engineered and brutally trail-proven, the Reactor is built to perform ride after ride.

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Specifications:

• Frame
  • Nukeproof Reactor V2 290 Carbon, Racing Red, 140mm Travel, ultra-strong monocoque UD Carbon Fibre frame, internally piped cable routing, ISCG 05 mounts, Max Bearings, Threaded 73mm BB, Boost 148mm rear axle spacing and 3D contoured Rubber frame protection
• Fork
  • RockShox Lyrik Select +, Charger 3.1 RC2, 29" Boost 15x110mm Maxle Stealth, Debonair, 150mm, Gloss Black, 44mm Offset
• Rear Shock
  • RockShox Super Deluxe Select+ Air, 210x55mm, Bearing End, Custom Tuned with 1 Token, Rebound 55, Compression 30, 4x Lockout
• Wheelset
  • Nukeproof Horizon PRO. F: 29", 15x110mm Boost, R:29", XD Freehub, 148x12mm Boost
• Tires
  • Front: Schwalbe Magic Mary Evo, Super Trail, TLE, 62-622 / 29x 2.4" Ultra Soft
  • Rear: Schwalbe Nobby Nic Evo, Super Trail, TLE, 62-622 / 29x 2.4" Soft
• Crankset
  • SRAM GX Eagle, 12-Speed, DUB, 165mm, 30T T-Type, 55mm CL
• Shifter
  • SRAM AXS POD Right Bridge MMX
• Rear Derailleur
  • SRAM GX Eagle Transmission
• Chain
  • SRAM GX T-Type, 12-Speed Eagle, Flattop, PowerLock, 116 Links
• Casssette
  • SRAM GX CS1275 T-Type, 12-Speed, 10-52T
• Brakes
  • RAM Maven Base, Organic pads
• Rotors
  • Front: SRAM Centerline 2.0 180mm Rounded
  • Rear: SRAM Centerline 2.0 180mm Rounded
• Handlebar
  • Nukeproof Horizon V2 25mm Rise, Width - S/M780mm, L800mm, XL800mm, XXL800mm
• Stem
  • Nukeproof Neutron AM, 45mm, black
• Saddle
  • Nukeproof Horizon SL
• Seatpost
  • Tranz-X YS108 Internal with SRAM Remote lever, S:150mm drop; M:170mm drop; L:200mm drop; XL/XXL:230mm drop
• Headset
  • Nukeproof, 44-56 IITS
• Grips
  • Nukeproof Neutron Single Lock On, Diameter - NP1 - 29.6mm, NP2 & NP3 - 31.8mm
• Pedals
  • not included
• Weight
  • 14.11kg/31.04lbs (Tubeless)

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Geometry:

		SMALL	MEDIUM	LARGE	X-LARGE	XX-LARGE
A	Reach	435	460	480	500	520
B	Stack	620.24	629.26	638.29	647.31	656.34
C	Effective Top Tube Length	578.2	605.28	621.5	643.51	665.51
D	Seattube Length	380	410	440	470	500
E	Effective Seattube Angle	Low 77° / High 77,5°	Low 77° / High 77,5°	Low 77° / High 78°	Low 77° / High 78°	Low 77° / High 78°
F	Seattube Angle (Actual)	Low 70.5° / High 71	Low 70.5° / High 71	Low 70.5° / High 71	Low 70.5° / High 71	Low 70.5° / High 71
G	Saddle Height at Saddle Offset	650	700	750	800	850
H	Saddle Offset at Saddle Height	Low 146.4 High 146.6	Low 164.4 High 163.4	Low 174.2 High 172.9	Low 191.8 High 189.5	Low 209.4 High 206.2
I	Headtube Length	100	110	120	130	140
J	Headtube Angle	Low 64.5° / High 65°	Low 64.5° / High 65°	Low 64.5° / High 65°	Low 64.5° / High 65°	Low 64.5° / High 65°
K	Chainstay Length	440	440	445	445	445
L	Front Centre	758.8	788.07	812.38	836.68	860.99
M	Wheelbase	1198.8	1228.07	1257.38	1281.68	1305.99
N	Bottom Bracket Drop (Front/Rear)	Low -39 / High -33	Low -39 / High -33	Low -39 / High -33	Low -39 / High -33	Low -39 / High -33
O	Bottom Bracket Height	Low 330 / High 336	Low 330 / High 336	Low 330 / High 336	Low 330 / High 336	Low 330 / High 336
P	Stand Over Height	745	750	755	760	765
Q	Fork Travel	150	150	150	150	150
R	Trail	132	132	132	132	132
S	Fork Offset	42	42	42	42	42
T	Axle to Crown	561	561	561	561	561
U	Maximum Seatpost Insert	270	270	295	320	350

⚠ Please allow approximately 2-4 weeks for processing and shipping.