Nukeproof Reactor Trail Bike | Everything You Need to Know.

Nukeproof have added another quiver to their bow in the form of their all-new Nukeproof Reactor trail bike that comes in alloy and carbon, 27.5 and 29″.

Twenty three years has elapsed since a frame bearing the Nukeproof Reactor name was on sale. Thankfully, Nukeproof have updated the geometry, materials and suspension somewhat to make the new Reactor a trail bike for those who want to descend.

Six models make up the new Nukeproof Reactor range, with both 275 and 290 versions of both, including the full carbon RS, Factory, Pro and Elite and the alloy with carbon seat stay Expert and Comp.

The base of the Reactor is a 4-bar Horst Link that has higher anti-squat levels in the higher up the cassette to make the most of the climbs, before falling off in the lower gears to maximise traction and smooth out the trail chatter.

A progressive spring curve also means the bike deals with the bigger hits and whenever you’re using the ground to build your speed.

Anti-rise has been tuned to give the bike some squat under braking to ensure the rear tyre bites and your weight isn’t thrown forward when the going gets tough.

The 27.5” bike combines 150mm of travel up front and 140mm out back whereas the 29” has 140mm up front and 130mm respectively.

A flip chip allows you to change the head angle by half a degree on both 275 and 290 models.

Stans Flow EX3Stans flow EX3

On the 275 size medium, you’ll get a 66 degree head angle in the ‘Trail’ and 65.5 in ‘Rail’, and a 75.5 or 75.1 degree seat angle respectively. Reach is a healthy 454mm with a 420mm seat tube.

With the bigger wheels, head and seat tube angles are identical to the 275 but there’s no small model, and the medium sports a 451mm reach with the same 420mm seat tube.

Reactor 275/290 RS

  • Full carbon frame
  • RockShox Lyrik Ultimate Charger 2 RCT3 fork
  • RockShox Super Deluxe Ultimate RCT shock
  • SRAM XO1 Eagle 12-speed drive
  • Mavic Deemax DH wheels
  • SRAM Code RSC brakes
  • Rockshox Reverb Stealth dropper
  • Nukeproof Horizon Carbon bars
  • Nukeproof Horizon stem
  • Nukeproof Sam Hill Signature grips
  • £5,399.99 RRP

Reactor 275/290 Factory

  • Full carbon frame
  • Fox 36 Float, Factory Series, Grip 2 fork
  • Fox Float DPX2, Factory Series shock
  • Shimano XT M8100 drive
  • DT Swiss M1700 SPLINE 30 wheels
  • Shimano XT M8120 brakes
  • RockShox Reverb Stealth dropper
  • Nukeproof Horizon stem
  • Nukeproof Sam Hill Signature grips
  • £4,899.99 RRP

Reactor 275/290 Pro

  • Full carbon frame
  • RockShox Pike Select + Charger 2 RC fork
  • RockShox Super Deluxe Select+ RT shock
  • Sram GX Eagle 12-speed drive
  • DT Swiss M1700 SPLINE 30 wheels
  • SRAM Guide RE brakes
  • Rockshox Reverb Stealth dropper
  • Nukeproof Horizon bars
  • Nukeproof Horizon stem
  • Nukeproof Sam Hill Signature grips
  • £4,399.99 RRP

Reactor 275/290 Elite

  • Full carbon frame
  • Fox 36 Float, Performance Series, Grip Damper fork
  • Fox Float DPX2, Performance Series shock
  • Shimano SLX M7100 drive
  • DT Swiss M1900 SPLINE wheels
  • Shimano SLX M7120 brakes
  • Brand-X Ascend dropper
  • Nukeproof Horizon bars
  • Nukeproof Neutron stem
  • Nukeproof Sam Hill Signature grips
  • £3,799.99 RRP

Reactor 275/290 Expert

  • Alloy frame with carbon seat stay
  • RockShox Pike Select Charger RC fork
  • RockShox Super Deluxe Select+ RT shock
  • SRAM NX Eagle 12-speed drive
  • WTB Speed Terra wheels
  • SRAM Guide RE brakes
  • Brand-X Ascend dropper
  • Nukeproof Horizon bars
  • Nukeproof Neutron stem
  • Nukeproof Sam Hill Signature grips
  • £3,099.99 RRP

Reactor 275/290 Comp

  • Alloy frame with carbon seat stay
  • RockShox Revelation RC fork
  • Rockshox Super Deluxe Select R shock
  • SRAM SX Eagle 12-speed drive
  • Sun-Ringle Duroc 35 Comp wheels
  • SRAM Guide T brakes
  • Brand-X Ascend dropper
  • Nukeproof Neutron bar and stem
  • Nukeproof Sam Hill Signature grips
  • £2,749.99 RRP

Full details on the all-new 2020 Nukeproof Reactor trail bike can be found on Nukeproof’s website here.


Thanks for sharing! Why not follow us for more content just like this?