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Today’s Deals2025 Nukeproof
Reactor Alloy 290 - Sram Eagle 90
A 29″ aluminum frame full suspension trail bike with ultra high-end components.
Manufacturer Price
€4,499($5,235)| Weight | 33.4 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 140 / 150mm |
| Fork | RockShox Lyrik Select+ |
| Shock | RockShox Super Deluxe Select+ |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | Eagle 90 Transmission |
| Brakes | SRAM Hydraulic Disc |
| Seatpost | Dropper |
5'2" – 5'7"
5'5" – 5'10"
5'8" – 6'1"
6'0" – 6'4"
6'3" – 6'8"
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.
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
| Frame | Nukeproof Reactor V2 290 Alloy, 140mm Travel, custom triple butted hydro-formed tube set for front triangle and chain stays, UD woven carbon fibre Seat stays, internal cable routing, ISCG 05 mounts, Max Bearings, Threaded 73mm BB, Boost 148mm rear ax BB Standard: BSA, 73mm, Threaded |
|---|---|
| Fork | RockShox Lyrik Select +, Charger 3.1 RC2, 29" Boost 15x110mm Maxle Stealth, Debonair, 150mm, Gloss Black, 44mm Offset Travel: 150mm Spring Type: Air |
| Shock | RockShox Super Deluxe Select+ Air, 210x55mm, Bearing End, Custom Tuned with 1 Token, Rebound 55, Compression 30, 4x Lockout Travel: 140mm |
| Bottom Bracket | BSA, 73mm, threaded |
| Headset | Nukeproof, 44-56 IITS |
| Stem | Nukeproof Neutron AM, 45mm, black |
| Handlebar | Nukeproof Horizon V2 25mm Rise, Width - S/M780mm, L800mm, XL800mm, XXL800mm |
| 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 Type: Dropper |
| Pedals | Not included ** |
| Grips | Nukeproof Neutron Single Lock On, Diameter - S/M: 29.6mm, L/XL/XXL: 31.8mm |
| Rear Derailleur | SRAM Eagle 90 |
|---|---|
| Crank | SRAM Eagle 90, 12-Speed, DUB, 165mm, 32T T-Type, 55mm CL |
| Shifters | SRAM Eagle 90, 12-Speed MMX |
| Cassette | SRAM XS-1270 T-Type 10-52 |
| Chain | SRAM GX T-Type, 12-Speed Eagle, Flattop, PowerLock, 116 Links |
| Brakes | Front: SRAM Maven Base, Organic pads, Rear: SRAM Maven Base, Organic pads Type: SRAM Hydraulic Disc |
| Rims | DT Swiss M1900 Spline. F: 29", 15x110mm Boost, R:29", HG Freehub, 148x12mm Boost |
|---|---|
| Tires | F: Schwalbe Magic Mary Evo, Super Trail, TLE, 62-622 / 29x 2.4" Ultra Soft, R: Schwalbe Nobby Nic Evo, Super Trail, TLE, 62-622 / 29x 2.4" Soft |
| Disc Rotors | F: SRAM Centerline 2.0 180mm Rounded, R: SRAM Centerline 2.0 180mm Rounded |
First added November 30
Last updated June 7