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Today’s Deals2024 Nukeproof
Reactor 290 Alloy Comp
A 29″ aluminum frame full suspension trail bike with upper mid-range components.
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Manufacturer Price
£2,999($4,035)| Weight | 33.1 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 130 / 150mm |
| Fork | Marzocchi Bomber Z2 |
| Shock | RockShox Super Deluxe Select |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | Deore |
| Brakes | Shimano Deore Hydraulic Disc |
| Seatpost | Dropper |
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full Reactor model range
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Nov 2025 · Jessie-May Morgan
To make the V1 stiff enough with the bridge around the front of the seat angle, we had to add more material to the layup which made it heavier. The new frame was done like this to achieve the desired stiffness in a lighter package. The old frame was 2.4 kg whereas the new one is 2.16 kgs (without paint) Although the Mega seat stay may look similar, they are different.
May 2022 · Tom Marvin
Riders looking to aim their front wheel down the steepest, roughest tracks will find the Reactor fits the bill
Smooth suspension paves the way for high-speed fun
Decent kit
Stout front end
Bit of a drag on the hills
Takes effort to generate speed on flatter terrain
Nov 2021 · Paul Burwell
If you’re a rider that’s focused on shredding singletrack rather than bike parks, the Nukeproof Reactor Pro 290 Alloy is a superb mid-travel trail bike
Superb balance, insanely fast singletrack shredder
A little lightweight for burlier riders
Jun 2021 · By
Gravity fans watch out! Downhill, the Nukeproof Reactor 290C Factory leaves most of its competitors behind in a cloud of dust. The spec leaves no room for complaint either – we’re big fans of Nukeproof's approach of putting trail performance ahead of weight. But is this enough for the Reactor 290C Factory to secure our coveted Best in Test?
Well thought-out spec suits the intended purpose
Intuitive, balanced handling
Good suspension
Comfortable pedalling position for long rides
Climbing efficiency
Dec 2020
Recently re-launched and now a full time member of the Nukeproof Reactor family, the Reactor 290 ST is a shorter travel version of the full suspension trail bike. With a lithe and resposive feel and top spec components, this bike – so long as you're happy to lock out the shock for climbing – makes a mean mile muncher. Merida One-Forty 600 review Vitus Mythique 29 VRS review The best ways to find new mountain bike trails As a 125mm full suspension trail bike, the Reactor 290 ST was designed for legendary downhill and enduro racer Sam Hill to ride in the off-season.
Oct 2020 · Jessie-May Morgan
We take a look at the 2021 Reactor trail bike offering from Nukeproof, including a new higher spec aluminium build and the Reactor ST.
| Frame | Nukeproof Reactor 290 Alloy, 130mm Travel, custom triple butted hydro-formed tube set for front triangle and chain stays, UD woven carbon fibre Seat stays, internal cable routing, internal cable routing, ISCG 05 mount, Enduro bearings, threaded 73mm BB, Boost 148mm rear axle spacing, 3D contoured rubber frame protection BB Standard: BSA, 73mm, Threaded Colors: Pencil Grey; Bullet Grey |
|---|---|
| Fork | Marzocchi Bomber Z2, 150mm, 44mm Offset, BOOST, RAIL Damper, Gloss Black Travel: 150mm Spring Type: Air |
| Shock | RockShox Super Deluxe Select R, Custom Compression LIN, Rebound L 320 tune, 210x50mm, Bearing End, 1x bottomless token fitted. Travel: 130mm |
| Bottom Bracket | BSA, 73mm, threaded |
| Headset | Nukeproof, 44-56 IITS |
| Stem | Nukeproof Neutron AM, 45mm, Black |
| Handlebar | Nukeproof Neutron V2 25mm Rise, Width - M780mm, L800mm, XL800mm |
| Saddle | Nukeproof |
| Seatpost | Brand-X Ascend internal, 31.6mm, M:150mm drop; L:170mm Drop; XL:200mm drop Type: Dropper |
| Grips | Nukeproof Sam Hill Signature |
| Rear Derailleur | Shimano Deore M6100, SGS 12-Speed, Shadow Plus |
|---|---|
| Crank | Race Face Ride, 12 Speed Crank, 170mm, 30T, 52mm Chainline |
| Shifters | Shimano Deore M6100-IR, 12-speed Rapidfire Plus, I-Spec EV |
| Cassette | Shimano Deore M6100 12-Speed (HYPERGLIDE+), 10-51T |
| Chain | Shimano Deore M6100 12-Speed |
| Chain Guide | N/A |
| Brakes | Shimano M6120 or SRAM DB8 Type: Shimano Deore Hydraulic Disc |
| Rims | Front: Sun-Ringle Duroc 35 Comp 29"", 15x110mm, Rear: Sun-Ringle Duroc 35 Comp 29"", Shimano Microspline Driver, 148x12mm |
|---|---|
| Tires | Front: Maxxis Assegai 29”x2.5 WT 3C MaxxTerra/EXO+/TR, Rear: Maxxis Dissector 29”x2.4 WT 3C MaxxTerra/EXO+/TR |
First added July 17
Last updated February 22
Not listed for 461 days