Nukeproof Reactor 275 Pro (2021)

Nukeproof
£3,699.00
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Introducing the all new Nukeproof Reactor: an old school name with a very new school look. Although it takes its name from the original 1996 Nukeproof Reactor trail frame, a lot has changed in the last 23 years as it runs an all new trail focused platform.

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 RCT3 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 XO1 Eagle Drivechain with Carbon Descendant Cranks and Mavic’s brand new Deemax DH 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, we 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.

 

       
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, internal cable routing, ISCG 05 mount, Enduro bearings, threaded 73mm BB, Boost 148mm rear axle spacing, 3D contoured rubber frame protection.  
FORK   RockShox Pike Select + Charger 2 RC 150mm, 46mm Offset, BOOST, Debonair, Gloss Black  
SHOCK   RockShox Super Deluxe Select+ RT, Custom ML 320 tune, 210x55mm, Bearing End, 1x bottomless token fitted.  
FRONT WHEEL   Nukeproof Neutron V2 27.5", Tubeless Ready, 32h, 110x15mm  
REAR WHEEL   Nukeproof Neutron V2 27.5", Tubeless Ready, 32h, SRAM XD Driver with 36 points of engagement, 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 GX Eagle 12-Speed, 170mm, 32T, B148, DUB  
SHIFTER   SRAM GX Eagle 12-Speed  
REAR DERAILEUR   SRAM GX Eagle 12-Speed  
CHAIN   SRAM GX Eagle 12-Speed  
CASSETTE   SRAM GX Eagle 12-Speed, CS XG1275 EAGLE 10-52T  
BRAKES   SRAM Guide RE  
FRONT ROTOR   SRAM Centreline, 200mm  
REAR ROTOR   SRAM Centreline, 180mm  
HANDLEBARS   Nukeproof Horizon V2 25mm Rise, Width - M780mm, L800mm, XL800mm)   
STEM   Nukeproof Neutron AM, 45mm, black  
SADDLE   Nukeproof Horizon SL, Black  
SEATPOST   Brand X Ascend internal, 31.6mm, S:125mm; M:150mm drop; L/XL: 170mm Drop  
HEADSET   Nukeproof, 44-56 IITS  
GRIPS   Nukeproof Sam Hill Signature  
BEARINGS   Enduro Bearings  
WEIGHT:(SIZE MEDIUM)    14.1kgs/31lbs (Tubeless)