Nukeproof Reactor 290 Carbon

Nukeproof Reactor 290 Carbon

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.

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”?

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.

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.

Please Note: Due to severe delays in the bicycle supply chain, we have 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 for accurate information.

Features

  • Aggressive Trail Bike
  • Nukeproof UD woven Carbon Fibre frame
  • 130mm Rear Travel (*ST Model 125mm)
  • 2 Position Trail/Rail Flip Chip, Swinglink Driven 4 Bar Horst Link Suspension, with custom tuned shock.
  • 148mm Boost rear spacing
  • Sizes Available: Medium, Large, Extra Large

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Nukeproof Reactor 290 Carbon
Nukeproof Reactor 290 Carbon
Nukeproof Reactor 290 Carbon
Nukeproof Reactor 290 Carbon
Nukeproof Reactor 290 Carbon
Nukeproof Reactor 290 Carbon
Nukeproof Reactor 290 Carbon
Find a Dealer

Full Specs

Elite Factory RS ST Frame Only
Frame Nukeproof Reactor 290 Carbon, 130mm 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 Nukeproof Reactor 290 Carbon, 130mm 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 Nukeproof Reactor 290 Carbon, 130mm 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 Nukeproof Reactor 290 Carbon, 125mm 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 Nukeproof Reactor 290Carbon, 130mm Travel, UD woven Carbon Fibre frame
Fork Fox 36 Float, Performance Elite Series, Grip 2 Damper, 150mm, 44mm Offset, BOOST, Black Fox 36 Float, Factory Series, Kashima, Grip 2 Damper, 150mm, 44mm Offset, BOOST, Orange RockShox Lyrik Ultimate Charger 2.1 RC2 150mm, 42mm Offset, BOOST, Debonair, Gloss Red Fox 34 Float, Factory Series, Kashima, Grip 2 Damper, 130mm, 44mm Offset, BOOST, Black   
Shock  Fox Float X, Performance Elite Series, 2 Position, LV EVOL, Custom CM+, RM, M, M+ tune, 210x50mm, Bearing End, 1x 0.2 spacer fitted. Fox Float X, Factory Series, Kashima, 2 Position, EVOL LV, Custom CM+, RM, M, M+ tune, 210x50mm, Bearing End, 1x 0.2 spacer fitted. RockShox Super Deluxe Ultimate RCT, Custom Compression LIN / Rebound L 320 tune, 210x50mm, Bearing End, 1x bottomless token fitted. Fox Float DPS, Factory Series, Kashima, 3 Position, EVOL LV, Custom CL, LRL tune, 210x47.5mm, Bearing End 1x 0.2 Spacer fitted.  Fox Float X, Factory Series, Kashima, 2 Position, EVOL LV, Custom CM+, RM, M, M+ tune, 210x50mm, Bearing End, 1x 0.2 spacer fitted.
Front Wheel Nukeproof Horizon V2 29", 6 Bolt, 110x15mm DT Swiss XM1700 SPLINE 30,29", 6 Bolt, 110x15mm DT Swiss XM1700 Spline 30, 29", 6 Bolt, 110x15mm Reynolds TR309 XC Front 28h, 29", Center-Lock, 110x15mm  
Rear Wheel Nukeproof Horizon V2 29", 6 Bolt, Shimano Microspline Driver, 148x12mm DT Swiss XM1700 SPLINE 30, 29", 6 Bolt, Shimano Microspline Driver, 148x12mm DT Swiss XM1700 Spline 30, 29", 6 Bolt, XD Driver, 148x12mm Reynolds TR289 XC Rear 28h, 29", Center-Lock, Shimano Microspline Driver, 148x12mm  
Tyres Front: Maxxis Assegai 29”x2.5 WT 3C MaxxTerra/EXO+/TR, Rear: Maxxis Dissector 29”x2.4 WT 3C MaxxTerra/EXO+/TR Front: Maxxis Assegai 29”x2.5 WT 3C MaxxTerra/EXO+/TR, Rear: Maxxis Dissector 29”x2.4 WT 3C MaxxTerra/EXO+/TR Front: Maxxis Assegai 29”x2.5 WT 3C MaxxTerra/EXO+/TR, Rear: Maxxis Dissector 29”x2.4 WT 3C MaxxTerra/EXO+/TR Front: Maxxis Minion DHF 29”x2.3 3C MaxxTerra/EXO/TR, Rear: Maxxis Agressor 29”x2.3  MaxxTerra/EXO/TR  
Crankset  Shimano SLX M7100 12-Speed, Hollowtech 2, 170mm, 30T, 52mm Chainline Shimano XT M8100 12-Speed, Hollowtech 2, 170mm, 30T, 52mm Chainline SRAM X1 Carbon Eagle 12-Speed, 170mm, 30T, B148, DUB Shimano XT M8100 12-Speed, Hollowtech 2, 170mm, 30T, 52mm Chainline  
Shifter Shimano SLX M7100-IR, 12-speed Rapidfire Plus, I-Spec EV Shimano XT M8100-R, 12-speed Rapidfire Plus, I-Spec EV SRAM AXS Eagle 12-Speed, Red Shimano XT M8100-R, 12-speed Rapidfire Plus, I-Spec EV  
Rear Deraileur Shimano SLX M7100, SGS 12-Speed, Shadow Plus Shimano XT M8100, SGS 12-Speed, Shadow Plus SRAM AXS X01 Eagle 12-Speed, Red Shimano XT M8100, SGS 12-Speed, Shadow Plus  
Chain Shimano SLX M7100 HG 12-speed Inc Quicklink  Shimano XT M8100 HG 12-speed Inc Quicklink  SRAM GX Eagle 12-Speed Shimano XT M8100 HG 12-speed Inc Quicklink   
Cassette  Shimano SLX M7100-12, 12-Speed (HYPERGLIDE+), 10-51T Shimano XT M8100-12, 12-Speed (HYPERGLIDE+), 10-51T SRAM XO1 Eagle 12-Speed, CS XG1295 EAGLE 10-52T Shimano XT M8100-12, 12-Speed (HYPERGLIDE+), 10-51T  
 Brakes Shimano SLX M7120, 4 Pot Brake, Metallic Pads  Shimano XT M8120, 4 Pot Brake, Metallic Pads   SRAM Code RSC Sintered Pads Shimano XT M8100, 2 Pot Brake, Metallic Pads  
 Front Rotor  203mm 203mm SRAM Centreline, 200mm Shimano SM-RT76, 180mm  
Rear Rotor  180mm 180mm SRAM Centreline, 180mm Shimano SM-RT76, 180mm  
Handlebars Nukeproof Horizon V2 25mm Rise, Width - M780mm, L800mm, XL800mm Nukeproof Horizon V2 25mm Rise, Width - M780mm, L800mm, XL800mm Nukeproof Horizon Carbon V2 25mm Rise, Width - M780mm, L800mm, XL800mm Nukeproof Horizon Carbon V2 25mm Rise, Width - M780mm, L800mm, XL800mm  
Stem Nukeproof Horizon, 45mm, Black Nukeproof Horizon, 45mm, Black Nukeproof Horizon, 45mm, Black Nukeproof  Horizon, 45mm, Black  
Saddle Nukeproof  Nukeproof  Nukeproof  Nukeproof   
Seatpost  Brand-X Ascend internal with Brand-X Remote lever, M:150mm drop; L:170mm drop; XL:200mm drop Bikeyoke Divine Stealth with Brand-X Remote lever, M:160mm drop; L/XL:185mm drop Bikeyoke Revive Stealth with Triggy Long Lever; M:160mm drop; L:185mm drop; XL:213mm drop Bikeyoke Divine Stealth w Shimano SL-MT500-IL Remote lever, M:160mm drop; L/XL:185mm drop  
Headset  Nukeproof, 44-56 IITS Nukeproof, 44-56 IITS  Nukeproof, 44-56 IITS Nukeproof, 44-56 IITS Nukeproof, 44-56 IITS
Grips Nukeproof Sam Hill Signature Nukeproof Sam Hill Signature  Nukeproof Sam Hill Signature Nukeproof Sam Hill Signature  
Bearings  Enduro Bearings Enduro Bearings Enduro Bearings Enduro Bearings Enduro Bearings
Weight (Size Medium)  14.66Kg Medium (Tubeless)  14.19Kgs Medium (Tubeless)  13.86Kgs Medium (Tubeless) 12.7Kgs Medium (Tubeless) 3.6Kgs/7.9lbs (Medium)

Geometry & Sizing

 

Reactor 290 140mm Fork (Carbon) Reactor 290 150mm Fork (Carbon) Reactor 290c ST (130mm Fork)
Medium Large X-Large Medium Large X-Large Medium Large X-Large
(A) Reach 451 480 514 446.3 475.4 509.5 460 488 521.6
(B) Stack 615 620 625 618.4 623.5 628.7 608 614 618
(C) Effective Top Tube Length 610 640 675 611.4 641.2 676.3 608 638 673
(D) Seattube Length 420 458 508 420 458 508 420 458 508
(E) Effective Seattube Angle 75.5°
(Low 75°)
75.5°
(Low 75°)
75.5°
(Low 75°)
75.1°
(Low 74.6°)
75.1°
(Low 74.6°)
75.1°
(Low 74.6°)
76.3°
(Low 75.8°)
76.3°
(Low 75.8°)
76.3°
(Low 75.8°)
(F) Seattube Angle (Actual) 71°
(Low 70.5°)
71°
(Low 70.5°)
71°
(Low 70.5°)
70.6°
(Low 70.1°)
70.6°
(Low 70.1°)
70.6°
(Low 70.1°)
71.8°
(Low 71.3°)
71.8°
(Low 71.3°)
71.8°
(Low 71.3°)
(G) Saddle Height at Saddle Offset - - - - - - - - -
(H) Saddle Offset at Saddle Height (At 30% Sag RT Only) - - - - - - - - -
(I) Headtube Length 105 110 115 105 110 115 105 110 115
(J) Headtube Angle 66°
(Low 65.5)
66°
(Low 65.5)
66°
(Low 65.5)
65.5°
(Low 65)
65.5°
(Low 65)
65.5°
(Low 65)
66.8°
(Low 66.3)
66.8°
(Low 66.3)
66.8°
(Low 66.3)
(K) Chainstay Length 440 440 440 440 440 440 440 440 440
(L) Front Centre 762.5 792 830 766.5 796 834 755.5 785 823
(M) Wheelbase 1205 1235 1271 1209 1239.1 1275.1 1198 1228 1264
(N) Bottom Bracket Drop -33
(Low -39)
-33
(Low -39)
-33
(Low -39)
-30
(Low -36)
-30
(Low -36)
-30
(Low -36)
-39
(Low -45)
-39
(Low -45)
-39
(Low -45)
(O) Bottom Bracket Height 336
(Low 330)
336
(Low 330)
336
(Low 330)
336
(Low 330)
336
(Low 330)
336
(Low 330)
330
(Low 324)
330
(Low 324)
330
(Low 324)
(P) Stand Over Height 736 (High) 744 (High) 769 (High) 739 (High) 747 (High) 772 (High) 730 (High) 738 (High) 763 (High)
(Q) Fork Travel 140 140 140 150 150 150 130 130 130
(R) Trail - - - - - - - - -
(S) Fork Offset 44 44 44 44 44 44 44 44 44
(T) Axle to Crown  554 554 554 564 564 564 537 537 537
(U) Maximum Seatpost Insert 215 250 300 215 250 300 215 250 300

*All dimensions in mm unless otherwise stated

Recommended Sizing

Help

  • FAQs
  • Frame Spec
  • Industry Reviews
  • Tech Docs
  • Where can I buy Nukeproof Bikes?
  • Nukeproof bikes, components and apparel is sold through an authorised dealer network. Check out our dealer locator for your local local stockist or preferred online store www.nukeproof.com/dealers. 
  • Do your bikes come with Warranty?
  • All Reactor frames come with a 5 year frame warranty (Please visit www.nukeproof.com/warranty for full info). On top of that we also offer an extended 2-year warranty on all components excluding wear and tear items such as bearings, brake pads, chains & cassettes etc. Our Warranty policy applies to the original owner and processed by our authorised retail partners. To see their warranty process check: www.nukeproof.com/warranty
  • Where can I demo a Nukeproof bike? 
  • We run numerous demo's through the year at major events and with our dealer network. Check out www.nukeproof.com/demo for when we may be near you. If this is unavailable to you, you can always request a demo through your local authorised stockist.  
  • What size bike do I need? 
  • All our products come with a size guide. This is designed as an indication of the size that may suit you. If you are still unsure speak with one of our dealers who will be happy to help you pick the right size and model for you. 
  • How does you bike range work? 
  • Our range is named based on specification level. Not every Bike Frame will have each specification level, but in order of price they run: Sport - Race - Comp - Pro - Elite- Factory/ST (Reactor Only) - RS   
Material: Ultra Strong T700/800 Monocoque Carbon Fibre
Fork Travel: 140mm Elite & Factory, ST 130mm, RS 150mm
Axle to Crown: 554mm (RS 564mm)
Fork Offset: 44mm
Rear Travel: 130mm
Wheels Size: 29"
Max Tyre Size: 2.6"
Recommended Shock Sag (Measured seated): 30%
Shock Size: 210x50mm
Shock Hardware F: 25x8mm
Shock Hardware R: 30x8mm 
Sizing: 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
Bottom Bracket 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
Protection: 3D Contoured Rubber/ Clear Frame Protection for DT/SS/CS