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Today’s DealsReactor 275 Expert
A 27.5″ aluminum frame full suspension trail bike with high-end components.
| Frame | Aluminum |
|---|---|
| Suspension | Full, 140 / 150mm |
| Fork | RockShox Pike Select |
| Shock | RockShox Super Deluxe Select+ |
| Wheels | 27.5″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | NX Eagle |
| Brakes | SRAM Guide RE Hydraulic Disc |
| Seatpost | Dropper |
5'2" – 5'8"
5'6" – 5'11"
5'10" – 6'3"
6'1" – 6'7"
🐐 Estimated
None yet.
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Summary
The Nukeproof Reactor is a versatile trail bike that excels in descending with its active suspension platform and stable, stiff frame, making it a capable machine for rough terrain. While it's not the most efficient climber due to its long reach and slack seat angle, it offers good value and a playful ride that bridges the gap between trail and enduro bikes.
Active suspension platform for fantastic traction
Stable and stiff frame for rough terrain
Good value for the price
Playful and versatile ride
Bridges the gap between trail and enduro
Not as efficient a climber as other trail bikes
Long reach and slack seat angle can hinder climbing
Can feel cumbersome in tight terrain
The thing absolutely charges, plain and simple.
a mile-munching trail bike worthy of aspiring mountain goats, while also being a seriously capable machine for descents.
The Nukeproof Reactor is a mini enduro bike that can take on the roughest trails despite its short travel!
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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 · Jessie-May Morgan
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.

Apr 2020 · Alan Muldoon
If you crave ultimate performance, and personal service from a local shop, the Nukeproof Reactor 290c Elite is the bike to get

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 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, custom tuned rear shock, internal dropper seatpost cable routing, Enduro bearings, threaded bottom bracket, boost 148mm rear axle spacing, 3D contoured frame protection BB Standard: BSA, 73mm, Threaded Tire Clearance: 2.6" |
|---|---|
| Fork | RockShox Pike Select Charger 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 |
| Bottom Bracket | Threaded 73mm BSA |
| Headset | Nukeproof, 44-56 IITS |
| Stem | Nukeproof Neutron AM, 45mm, black |
| Handlebar | Nukeproof Horizon 25mm Rise, Width - S780mm, M780mm, L800mm, XL800mm) |
| Saddle | Nukeproof Horizon SL, Black |
| Seatpost | Brand X Ascend internal, 31.6mm, S:125mm drop; M/L:150mm drop; XL: 170mm Drop Type: Dropper |
| Grips | Nukeproof Sam Hill Signature |
| Rear Derailleur | SRAM NX Eagle 12-Speed |
|---|---|
| Crank | SRAM NX Eagle 12-Speed, 170mm, 32T, B148, DUB |
| Shifters | SRAM NX Eagle 12-Speed |
| Cassette | SRAM NX Eagle 12-Speed, CS PG1230 EAGLE 11-50T |
| Chain Guide | ISCG05 |
| Brakes | SRAM Guide RE Type: SRAM Guide RE Hydraulic Disc |
| Rims | Front: WTB Speed Terra 27.5", ST Light i30 TCS 2.0 Rim / 32h, 110x15mm, Rear: WTB Speed Terra 27.5", ST Light i30 TCS 2.0 Rim / 32h, Shimano Driver, 148x12mm |
|---|---|
| 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 Centreline, 200mm Front 180mm Rear |
First added October 29
Last updated September 12
Not listed for 2,085 days