Nukeproof Reactor 290 Alloy Mountain Bike Frame
Nukeproof Reactor 290 Alloy Mountain Bike Frame  2022

Nukeproof

Nukeproof Reactor 290 Alloy Mountain Bike Frame

Sale price$2,554.00
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Pickup currently unavailable at Unit 9, Hills Hire Centre, Johnstown Rd, Dún Laoghaire, Co. Dublin

Nukeproof Reactor 290 Alloy Mountain Bike Frame

Turmeric Yellow / L

Unit 9, Hills Hire Centre, Johnstown Rd, Dún Laoghaire, Co. Dublin

Pickup currently unavailable

Unit 9, Hills Hire Centre,
Johnstown Rd,
Dún Laoghaire,
Co. Dublin

012840609

Warehouse

Pickup available, usually ready in 5+ days

Unit 9, Hills Hire Centre,
Johnstown Rd,
Dún Laoghaire,
Co. Dublin

+3532840609

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 Reactor frame is crafted from hydroformed triple butted 6061 aluminum. To reduce unsprung mass the seatstays on the Reactor are molded from carbon fibre. All frames are available for 27.5” or 29” wheel sizes. Each wheel size is based on two totally different, compromise free frames. Each were designed and developed at the same time and optimized around each wheel size.

Speed or play: which do you value more? The maneuverability 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 ‚Äì 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 maximize 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.

FEATURES

  • Aggressive Trail Bike
  • 130mm Rear Travel
  • 2 Position Trail/Rail Flip Chip,¬†Swing link Driven 4 Bar¬†Horst Link Suspension, with custom tuned shock.
  • 148mm Boost rear spacing
  • Sizes Available: Medium, Large, Extra Large

 

REACTOR 290 140MM FORK (ALLOY) REACTOR 290 150MM FORK (ALLOY)
Medium Large X-Large Medium Large X-Large
(A) REACH 451 480 514 446.3 475.4 509.5
(B) STACK 615 620 625 618.4 623.5 628.7
(C) EFFECTIVE TOP TUBE LENGTH 610 640 675 611.4 641.2 676.3
(D) SEATTUBE LENGTH 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°)
(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°)
(G) SADDLE HEIGHT AT SADDLE OFFSET
(H) SADDLE OFFSET AT SADDLE HEIGHT
(I) HEADTUBE LENGTH 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)
(K) CHAINSTAY LENGTH 440 440 440 440 440 440
(L) FRONT CENTRE 762.5 792 830 766.5 796 834
(M) WHEELBASE 1205 1235 1271 1209 1239.1 1275.1
(N) BOTTOM BRACKET DROP -33
(Low -39)
-33
(Low -39)
-33
(Low -39)
-30
(Low -36)
-30
(Low -36)
-30
(Low -36)
(O) BOTTOM BRACKET HEIGHT 336
(Low 330)
336
(Low 330)
336
(Low 330)
339
(Low 333)
339
(Low 333)
339
(Low 333)
(P) STAND OVER HEIGHT 736 (High) 744 (High) 769 (High) 739 (High) 747 (High) 772 (High)
(Q) FORK TRAVEL 150 150 150 160 160 160
(R) TRAIL
(S) FORK OFFSET 44 44 44 44 44 44
(T) AXLE TO CROWN  554 554 554 564 564 564
(U) MAXIMUM SEATPOST INSERT 215 250 300 215 250 300

*All dimensions in mm unless otherwise stated

RECOMMENDED SIZING


Material: Hydroformed 6061 Triple-Butted Aluminium 
Fork Travel: 140mm (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: 34.9mm
BB: Threaded 73mm BSA
Rear Hub: Boost 148x12mm
Rear Axle: Sram Maxle Stealth M12x1.75 180mm (Thread Length 20mm)
Chain Guide: ISCG05
Max Chainring Size 34T/32T Oval
Brake Mount: 180mm Direct Post
Protection: 3D Contoured Rubber Frame Protection for DT/SS/CS

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