Reactor 275c Pro
A 27.5″ carbon frame full suspension trail bike with high-end components.
Frame | Carbon |
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Suspension | Full, 140 / 150mm |
Fork | RockShox Pike Select+ |
Shock | RockShox Super Deluxe Select+ |
Wheels | 27.5″ Aluminum |
Drivetrain | 1 × 12 |
Groupset | GX Eagle |
Brakes | Hydraulic Disc |
Seatpost | Dropper |
For This Bike
5'2" – 5'8"
5'6" – 5'11"
5'10" – 6'3"
6'1" – 6'7"
🐐 Estimated
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 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
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 · Nukeproof
Designed as the ultimate hard-charging hooligan of a trail bike and conceived for those riders that are looking for ultimate speed and style out on the trails, the RS is slightly over-forked, featuring +10mm of travel up front over the rest of the range to excel when on the most technical and mini enduros and downhill trails. .
Apr 2020
Nukeproof drop the Reactor ST; a limited edition lightweight short-travel version of the all-mountain Reactor with build spec worthy of an XC race bike.
Mar 2020 · McCoy
Shredding trails since 1996
Mar 2020 · Iceman2058
Nukeproof's take on the short/mid-travel trail bike turns out to be very capable - and tons of fun to ride.
Jan 2020
The Reactor feels like a bike with classic, old school all-mountain intentions, constructed with the colloquialisms of the contemporary mountain bike.
Oct 2019 · Finlay Anderson
The Nukeproof Reactor 275 RS marks the return of a dedicated trail bike to Nukeproof's lineup. It is decked out with top spec and promises a thrilling ride!
Frame | Nukeproof Reactor 275 Carbon, 140mm Rear Travel, UD woven Carbon Fibre front triangle/chain stays/seat stays, internal cable routing, custom tuned rear shock, Enduro bearings, threaded bottom bracket, boost 148mm rear axle spacing, 3D contoured frame protection BB Standard: BSA, 73mm, Threaded Tire Clearance: 2.6" |
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Fork | RockShox Pike Select + Charger 2 RC 150mm, 46mm Offset, BOOST, Debonair, Diffusion Black Travel: 150mm Spring Type: Air |
Shock | RockShox Super Deluxe Select+ RT, Custom ML 380 tune, 210x55mm, Bearing End (Comes with 1x bottomless token fitted so you have them if needed.) Travel: 140mm Spring Type: Air |
Bottom Bracket | Threaded 73mm BSA |
Headset | ZS44-28.6 – T2 / ZS56/40 – B8 |
Stem | Nukeproof Horizon, 50mm, Black |
Handlebar | Nukeproof Horizon 25mm Rise, Width - S780mm, M780mm, L800mm, XL800mm) |
Saddle | Nukeproof Horizon SL, Yellow |
Seatpost | 31.6mm (Internal Routing for Dropper Seatpost) Type: Dropper |
Grips | Nukeproof Sam Hill Signature |
Rear Derailleur | SRAM GX Eagle 12-Speed |
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Crank | SRAM GX Eagle 12-Speed, 170mm, 32T, B148, DUB |
Shifters | SRAM GX Eagle 12-Speed |
Cassette | SRAM GX Eagle 12-Speed, CS PG1275 EAGLE 10-50T |
Chain Guide | ISCG05 |
Brakes | SRAM Guide RE Type: Hydraulic Disc |
Rims | Front: DT Swiss M1700 SPLINE 30, 27.5", 6 Bolt, 110x15mm, Rear: DT Swiss M1700 SPLINE 30, 27.5", 6 Bolt, XD Driver, 148x12mm |
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Rear Hub | Boost 148x12mm |
Tires | Maxxis Assegai 27.5”x2.5 WT 3C MaxxTerra/EXO+/TR, Rear: Maxxis Minion DHR II 27.5”x2.4 WT 3C MaxxTerra/EXO+/TR |
Disc Rotors | SRAM Centerline, 200mm (Front), 180mm (Rear) |
Last updated September 12
Not listed for 1,288 days