Nukeproof Reactor 275 RS Carbon Bike (X01 Eagle)

From concept through to design, the Kinematics, the geometry and specification; the Reactor is designed from the ground up to be the ultimate aggressive trail bike. It is at home on technical climbs, but happiest when thrashing the most technical trails you can point it at.

The RS model is the hooligan spec option in the range, with a host of upgrades to make it burlier than the rest. It features a +10mm RockShox Lyrik Ultimate RC2 forks (160mm) up front, a RockShox Super Deluxe Ultimate RCT rear shock, our award-winning carbon handlebars, 4 Pot Code RSC brakes (With Sintered Pads), a SRAM ASX Eagle Drive chain with Carbon X1 Cranks and DT Swiss XM1700 Spline 30 wheelset.

Frame Construction:

To optimise the weight, strength and stiffness, the Reactor Carbon frame features a full UD woven carbon fibre frameset (Including chain and seat stays). It is available for 27.5” or 29” wheel sizes. These are two totally different, compromise free frames that were designed and developed at the same time.  Each frame is simply tailored around each wheel size.

Speed or play: which do you value more? The manoeuvrability of 27.5” or the raw speed of a 29”?

Adjustable Geometry:

All Reactor frames feature a “flip chip” to adjust the geometry from “Trail” to “Rail mode”.

Trail – As the name suggests, this setting is best suited for trail riding. It is for riders who get as much enjoyment from the climb as the descents.

Rail – The Rail setting turns the Reactor into a corner shredder, dropping the bottom bracket 6mm and slackening the head angle by half a degree. It is there to maximise the descending capabilities.

Suspension Design:

To ensure the bike could climb as well as it descends, Nukeproof designed the 4-bar horst linkage to have higher levels of anti-squat for climbing gears but lower levels when you drop down the cassette. This means that the bike can behave itself on the climbs but when you get it up to speed, it turns into a trail hooligan. The combination of low anti-squat and progressive rate give ultimate small bump compliance (removes rough trail and root chatter) with good mid stroke support for cornering/pumping and end stroke progression for aggressive riding. Balanced anti-rise figures allow the Reactor some squat when braking hard, maintaining rider position and providing a good amount of pressure through the tyre to ensure traction. The Reactor is designed to reward the rider and ensure you get that stoke factor in on any ride.

Full Specification List:

• Frame: Nukeproof Reactor 275 Carbon, 140mm Travel, UD woven Carbon Fibre frame, internal cable routing, ISCG 05 mounts, Enduro bearings, Threaded 73mm BB, Boost 148mm rear axle spacing, 3D contoured rubber frame protection
• Fork: RockShox Lyrik Ultimate Charger 2.1 RC2 160mm, 46mm Offset, BOOST, Debonair, Gloss Red
• Shock: RockShox Super Deluxe Ultimate RCT, Custom 320 tune, 210x55mm, Bearing End, 1x bottomless token fitted
• Front Wheel: DT Swiss XM1700 Spline 30 27.5″, 6 Bolt, 110x15mm
• Rear Wheel: DT Swiss XM1700 Spline 30, 27.5″, 6 Bolt, XD Driver, 148x12mm
• Tyres: Front: Maxxis Assegai 27.5”x2.5 WT 3C MaxxTerra/EXO+/TR, Rear: Maxxis Dissector 27.5”x2.4 WT 3C MaxxTerra/EXO+/TR
• Crankset: SRAM X1 Carbon Eagle 12-Speed, 170mm, 32T, B148, DUB
• Shifter: SRAM X01 ASX Eagle Wireless 12-Speed, Red
• Rear Derailleur: SRAM X01 ASX Eagle Wireless 12-Speed, Red
• Chain: SRAM GX Eagle 12-Speed
• Cassette: SRAM X01 Eagle 12-Speed, CS XG1295 EAGLE 10-52T
• Brakes: SRAM Code RSC Sintered Pads
• Front Rotor: SRAM Centreline, 200mm
• Rear Rotor: SRAM Centreline, 180mm
• Handlebars: Nukeproof Horizon Carbon V2 25mm Rise, Width – S780mm, M780mm, L800mm, XL800mm
• Stem: Nukeproof Horizon, 45mm, Black
• Saddle: Nukeproof, Black
• Seatpost: Bikeyoke Revive Stealth with Triggy Long Lever; S:125mm; M:160mm; L:185mm; XL:213mm drop
• Headset: Nukeproof, 44-56 IITS
• Grips: Nukeproof Sam Hill Signature
• Weight: 13.67kg Medium Tubeless

Please Note: Due to severe delays in the bicycle supply chain, Nukeproof has been forced to make some alterations to the specification of the component parts supplied with this bicycle. As a result, the specification may differ from those shown in the images. Please refer to the specification table above for accurate information.

Key Specifications:

Material: Ultra Strong T700/800 Monocoque Carbon Fibre
Fork Travel: 160mm
Axle to Crown: 555mm
Fork Offset: 46mm
Rear Travel: 140mm
Wheels Size: 27.5″
Max Tyre Size: 2.6″
Recommended Shock Sag (Measured seated): 30%
Shock Size: 210x55mm
Shock Hardware F: 25x8mm
Shock Hardware R: 30x8mm
Sizing: S/M/L/XL
Headtube: 44-56mm Tapered Semi-Integrated
Headset: ZS44-28.6 – T2 / ZS56/40 – B8
Bearings Required: 2x (6902 2RS), 4x (6800 2RS), 4x (6901 2RS)
Seatpost: 31.6mm (Internal Routing for Dropper Seatpost)
Seat Clamp: 36.4mm
BB: Threaded 73mm BSA
Rear Hub: Boost 148x12mm
Rear Axle: Sram Maxle Stealth M12x1.75 180mm (Thread Length 20mm)
Chain Guide: ISCG05
Brake Mount: 180mm Direct Post

Built, Tuned and Ready to Ride

Rest assured that each bike is fully built and tuned by Wiggle’s team of qualified bike mechanics to ensure your bike arrives in perfect condition. We supply all bikes with a set of plastic pedals, a pedal wrench and a multi-tool kit. Find out which size fits you by clicking the size chart tab.

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