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 optimize the weight, strength and stiffness, the Reactor Carbon frame features a full UD woven carbon fiber 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 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 – 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 tire 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, Swinglink Driven 4 Bar Horst Link Suspension, with custom tuned shock.
148mm Boost rear spacing
Sizes Available: Medium, Large, Extra Large

FULL SPECS

	COMP	PRO	FRAME ONLY
FRAME	Nukeproof Reactor 290 Alloy, 130mm Travel, custom triple butted hydro-formed tube set for front triangle and chain stays, UD woven carbon fiber 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	Nukeproof Reactor 290 Alloy, 130mm Travel, custom triple butted hydro-formed tube set for front triangle and chain stays, UD woven carbon fiber 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	Nukeproof Reactor 290 Alloy, 130mm Travel, custom triple butted hydro-formed tube set for front triangle and chain stays, UD woven carbon fiber 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	Marzocchi Bomber Z2, 140mm, 44mm Offset, BOOST, RAIL Damper, Gloss Black (SHORT ID: D6S2)	RockShox Pike Select + Charger 2 RC 140mm, 42mm Offset, BOOST, Debonair, Gloss Black
SHOCK	RockShox Super Deluxe Select R, Custom ML Tune, 210x50mm, Bearing End, 1x bottomless token fitted.	RockShox Super Deluxe Select+ RT, Custom ML 320 tune, 210x50mm, Bearing End, 1x bottomless token fitted.	RockShox Super Deluxe Ultimate RCT, Custom ML 320 tune, 210x50mm, Bearing End, 1x bottomless token fitted
FRONT WHEEL	Sun-Ringle Duroc 35 Comp 29", 15x110mm	Nukeproof Neutron V2 29", Tubeless Ready, 32h, 110x15mm
REAR WHEEL	Sun-Ringle Duroc 35 Comp 29", Shimano Microspline Driver, 148x12mm	Nukeproof Neutron V2 29", Tubeless Ready, 32h, SRAM XD Driver with 36 points of engagement, 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
CRANKSET	Shimano Deore M6100 12 Speed Crank, 170mm, 30T, 52mm Chainline	: SRAM GX Eagle 12-Speed, 170mm, 30T, B148, DUB
SHIFTER	Shimano Deore M6100-IR, 12-speed Rapidfire Plus, I-Spec EV	SRAM GX Eagle 12-Speed
REAR DERAILEUR	Shimano Deore M6100, SGS 12-Speed, Shadow Plus	SRAM GX Eagle 12-Speed
CHAIN	Shimano Deore M6100 12-Speed	SRAM GX Eagle 12-Speed
CASSETTE	Shimano Deore M6100 12-Speed (HYPERGLIDE+), 10-51T	SRAM GX Eagle 12-Speed, CS XG1275 EAGLE 10-52T
BRAKES	Shimano Deore M6120 4 pot brake, Resin Pads	SRAM Guide RE
FRONT ROTOR	Shimano SM-RT66, 203mm	SRAM Centreline, 200mm
REAR ROTOR	Shimano SM-RT66, 180mm	SRAM Centreline, 180mm
HANDLEBARS	Nukeproof Neutron V2 25mm Rise, Width - M780mm, L800mm, XL800mm)	Nukeproof Horizon V2 25mm Rise, Width - M780mm, L800mm, XL800mm)
STEM	Nukeproof Neutron AM, 45mm, black	Nukeproof Neutron AM, 45mm, black
SADDLE	Nukeproof Horizon SL, Black	Nukeproof Horizon SL, Black
SEATPOST	Brand X Ascend internal, 31.6mm, M:150mm drop; L/XL: 170mm Drop	Brand X Ascend internal, 31.6mm, M:150mm drop; L/XL: 170mm Drop
HEADSET	Nukeproof, 44-56 IITS	Nukeproof, 44-56 IITS	Nukeproof, 44-56 IITS
GRIPS	Nukeproof Sam Hill Signature	Nukeproof Sam Hill Signature
BEARINGS	Enduro Bearings	Enduro Bearings	Enduro Bearings
WEIGHT (SIZE MEDIUM)	15Kgs/33lbs (Tubeless)	14.4Kgs/31.7lbs (Tubeless)	3.77Kgs/8.3lbs (Medium)

GEOMETRY & SIZING

	MEDIUM	LARGE	X-LARGE	X-LARGE
(A) REACH	451	480	514	514
(B) STACK	615	620	625	625
(C) EFFECTIVE TOP TUBE LENGTH	610	640	675	675
(D) SEATTUBE LENGTH	420	458	508	508
(E) EFFECTIVE SEATTUBE ANGLE	75.5° (Low 75°)	75.5° (Low 75°)	75.5° (Low 75°)	75.5° (Low 75°)
(F) SEATTUBE ANGLE (ACTUAL)	71° (Low 70.5°)	71° (Low 70.5°)	71° (Low 70.5°)	71° (Low 70.5°)
(G) SADDLE HEIGHT AT SADDLE OFFSET	700	750	850	-
(H) SADDLE OFFSET AT SADDLE HEIGHT	180.11	196.07	228.33	-
(I) HEADTUBE LENGTH	105	110	115	115
(J) HEADTUBE ANGLE	66° (Low 65.5)	66° (Low 65.5)	66° (Low 65.5)	66° (Low 65.5)
(K) CHAINSTAY LENGTH	440	440	440	440
(L) FRONT CENTRE	762.5	792	830	830
(M) WHEELBASE	1205	1235	1271	1271
(N) BOTTOM BRACKET DROP	-33 (Low -39)	-33 (Low -39)	-33 (Low -39)	-33 (Low -39)
(O) BOTTOM BRACKET HEIGHT	336 (Low 330)	336 (Low 330)	336 (Low 330)	336 (Low 330)
(P) STAND OVER HEIGHT	733/728	728/735	736/741	769 (High)
(Q) FORK TRAVEL	140	140	140	140
(R) TRAIL	108.62	108.62	108.62	-
(S) FORK OFFSET	44	44	44	44
(T) AXLE TO CROWN	554	554	554	554
(U) MAXIMUM SEATPOST INSERT	215	250	300	300

*All dimensions in mm unless otherwise stated

RECOMMENDED SIZING

HELP

FAQs
Frame Spec
Tech Docs

Material:	Hydroformed 6061 Triple-Butted Aluminum
Fork Travel:	140mm (RS 150mm)
Axle to Crown:	554mm (RS 564mm)
Fork Offset:	44mm
Rear Travel:	130mm
Wheels Size:	29"
Max Tire 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
Brake Mount:	180mm Direct Post
Protection:	3D Contoured Rubber Frame Protection for DT/SS/CS