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The Nukeproof Reactor is the ultimate aggressive trail bike, built from hydroformed 6061 aluminium with carbon seat stays for strength and stiffness. It features adaptable geometry via a flip chip.
The Nukeproof Reactor is the ultimate aggressive trail bike, built from hydroformed 6061 aluminium with carbon seat stays for strength and stiffness. It features adaptable geometry via a flip chip.
Nukeproof

Nukeproof Reactor 290 Alloy Pro Eagle90 REA01AS Mountain Bike In Yellow

£3,399.00 £3,999.00 15% off
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

Thank you for shopping with us. We strive to provide you with the best products and services. If, for any reason, you are not completely satisfied with your purchase, we offer a return and refund policy subject to the following terms and conditions:

  1. Returns Accepted:

    • We accept returns within 30 days from the date of purchase.
    • To be eligible for a return, the item must be unused, in its original condition, and in the original packaging.
    • Proof of purchase, such as an order number and receipt, is required for all returns.
  2. Return Shipping:

    • Customers are responsible for arranging and covering the cost of return shipping.
    • We recommend using a trackable shipping method to ensure that the returned item reaches us safely.
  3. Restocking Fees:

    • A 10% restocking fee will be applied to all returned bikes and all items that are returned but not faulty.
    • This fee covers the cost of inspecting, repackaging, and restocking the item for future sale.
  4. Final Sale Items:

    • Please note that final sale items are not eligible for return or refund.
    • Final sale items are clearly marked as such on the product page or during the checkout process.
  5. Refunds:

    • Once your return is received and inspected, we will send you an email notification to inform you of the approval or rejection of your refund.
    • If your return is approved, the refund will be processed to the original payment method used during the purchase.
    • Please allow for a reasonable processing time for the refund to be reflected in your account, depending on your payment provider.
  6. Damaged or Defective Items:

    • In the rare event that you receive a damaged or defective item, please contact our customer support within 48 hours of receiving the product.
    • We may require photo evidence of the damage or defect to facilitate the return process.
  7. Delivered Bicycles
    • All bicycles shipped from us are inspected before they are boxed. However, due to the nature of packaging the bike into a box, some minor assembly will be required. This assembly is recommended to be conducted by a certified mechanic. If the bike is not checked by a qualified mechanic then your warranty may not be valid.
Multiple returns of items including clothing will be subject to the 10% restocking fee

Please note that this return and refund policy applies only to purchases made directly from our online store. For products purchased through third-party retailers or other channels, their respective return policies and procedures may apply.

We reserve the right to update or modify this return and refund policy at any time without prior notice. It is your responsibility to review and understand the terms and conditions outlined here before making a purchase.

If you have any further questions or require assistance regarding returns or refunds, please contact our customer support, and we will be happy to assist you.

Nukeproof Reactor 290 Alloy Pro Eagle90 REA01AS Mountain Bike In Yellow

Season:2026

Brand:Nukeproof

Code:rea01asSramEagle901x12

The Nukeproof Reactor is the ultimate aggressive trail bike, designed from the ground up to excel on technical climbs and aggressive descents.

The Reactor frame is crafted from hydroformed triple-butted 6061 aluminium alloy, featuring carbon fibre seat stays to reduce unsprung mass and optimise lateral stiffness. This construction delivers the perfect blend of low weight, strength, and stiffness, ensuring reliability for aggressive trail riding and long days in the saddle.

The Reactor Alloy is built around geometry that balances agility, stability, and all-day efficiency. A long, low, and slack stance adds confidence on descents, while a steep seat tube angle places the rider centrally for precise handling and efficient power transfer on climbs. The four-bar Horst Link platform delivers 140 mm of rear travel, tuned to be supple off the top for traction and comfort, with strong mid-stroke support that keeps the bike lively and responsive in technical terrain.

Adaptability is central to the design. A two-position “Trail or Rail” flip chip lets riders refine geometry and handling. Trail mode provides an efficient, balanced feel for big days, while Rail mode lowers the bottom bracket and relaxes the head angle for more aggressive descending and corner support. The frame is available for 27.5” or 29” wheel sizes, and the 290 Trail or Rail chip in the rear triangle can be switched to a 297 mix wheel Rail chip, ensuring consistent performance across setups.

Features:

  • Hydroformed triple-butted 6061 T6 aluminium alloy front triangle and chainstays.
  • Carbon fibre seat stays to reduce unsprung mass and optimise lateral stiffness.
  • Four-bar Horst Link suspension platform delivering 140 mm of rear travel.
  • Adaptable geometry via the two-position “Trail or Rail” flip chip.
  • Front triangle accepts a full size 750 ml water bottle.
  • Accessory mount under the top tube for tools or spares.
  • Generous mud clearance for tyres up to 6.6cm (2.6").
  • MAX bearings throughout the frame for lasting smoothness and durability.
  • Tube-in-tube internal cable routing for a clean and rattle-free setup.
  • 3D contoured rubber guards protect key areas from impacts and chain noise.
Technical Information
  • Frame
    Nukeproof Reactor V2 290 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, ISCG 05 mounts, Max bearings, Threaded 73mm BB, Boost 148mm rear ax
  • Material
    Aluminium
  • Bike weight
    15.17kg/33.4lbs (Tubeless)
  • Fork
    RockShox Lyrik Select +, Charger 3.1 RC2, 29" Boost 15x110mm Maxle Stealth, Debonair, 150mm, Gloss Black, 44mm Offset
  • Rear shock
    RockShox Super Deluxe Select+ Air, 210x55mm, Bearing End, Custom Tuned with 1 Token, Rebound 55, Compression 30, 4x Lockout
  • Groupset
    Sram Eagle 90
  • Rear derailleur
    Sram Eagle 90
  • Crank
    SRAM GX Eagle, 12-Speed, DUB, 165mm, 30T T-Type, 55mm CL
  • Cassette
    Sram XS-1270 T-Type 10-52
  • Brake type
    Post Mount
  • Front brake
    SRAM Maven Base, Organic pads
  • Rear brake
    SRAM Maven Base, Organic pads
  • Wheelset
    DT Swiss M1900 Spline. F: 29", 15x110mm Boost, R:29", HG Freehub, 148x12mm Boost
  • Outer tyre
    F: Schwalbe Magic Mary Evo, Super Trail, TLE, 62-622 / 29x 2.4" Ultra Soft, R: Schwalbe Nobby Nic Evo, Super Trail, TLE, 62-622 / 29x 2.4" Soft
  • Handlebar
    Nukeproof Horizon V2 25mm Rise, Width - S/M780mm, L800mm, XL800mm, XXL800mm
  • Stem
    Nukeproof Neutron AM, 45mm, black
  • Seatpost
    Tranz-X YS108 Internal with SRAM Remote lever, S:150mm drop; M:170mm drop; L:200mm drop; XL/XXL:230mm drop
  • Saddle
    Nukeproof Horizon SL
  • Range
    Trail/All-Mountain
Sizing Information
S
159cm / 5' 2" - 169cm / 5' 7"
M
167cm / 5' 6" - 177cm / 5' 10"
L
175cm / 5' 9" - 185cm / 6'
XL
183cm / 6' - 193cm / 6' 4"
XXL
191cm / 6' 3" - 201cm / 6' 7"
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