To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
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 Full Suspension Bike 2026 Yellow

£3,999.00
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

Quick & Easy Returns

Returns made easy!

Please read and fully understand this policy before returning goods to us. With exception of Warranty Claims, Faulty or Damaged goods (See terms below), we can only accept a return on an item if it is completely unused and in its original condition.
  1. Please pack the item carefully in its original packaging.
  2. Download and Print the returns slip.
  3. Fully complete the returns slip and include it in the package.
  4. Contact us to arrange a courier collection, or make your own arrangements for postal/courier service.

Returns Address

Pauls Cycles Returns
Unit A, 13 Yaxham Road
Dereham
Norfolk
NR19 1HB

Returns & Exchanges Policy Summary

We offer a 14 day returns period from the date of receipt.

It is your responsibility to ensure that the item is returned to us safely and securely, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

We are unable to accept returns where the goods or packaging has been used, lost, damaged or is otherwise not in the condition you received it in. Bikes must be returned in a securely packaged bike box.

If you would like us to arrange a collection via courier, then we can do so at a cost of £50. Should you fail to be present for an arranged collection, you will be charged £20 to rebook.

We will refund up to £10 for private postage of faulty or damaged items.

If you would like to exchange an item, we will happily send out a replacement product once the original has been returned.

Refunds will be made to the original payment method - this may take up to 10 days to appear depending on the method of payment. Initial shipping costs are non-refundable.

We are unable to offer a refund without proof of purchase.

We cannot accept returns without a completed returns form.

Signing for delivery receipt of items that have clearly been damaged by the courier is the responsibility of the receiver.

Items that are damaged during a return as a result of inadequate packaging will be declined and returned to you, or charged for.

Faulty Goods and Warranties

If the item that has been received is faulty, damaged or not as described then we will cover the cost of return postage (up to £10) and offer a refund or exchange. In these instances, we would always recommend using our own shipping services.

Important information to note about returning faulty, damaged or not-as-described items:

Pauls Cycles issue no warranties, all warranties are issued by manufacturers. For this reason, we may need to send your goods to the manufacturer for inspection before taking any action. Please see the relevant manufacturer's website for full warranty information.

Only products that are faulty, damaged or not as described by ourselves are eligible for returns/exchanges. If damage has been caused through wear and tear, improper care or some other factor beyond our control then it will not be covered.

Once a faulty item has been used, or if the packaging has been damaged it can still be returned to us, however, we - and the manufacturer - reserve the right to offer a repair, replacement or partial refund.

Remember it is your responsibility to ensure that returned items are packaged appropriately - any damage caused in transit [as a result of inadequate packaging] will be chargeable.

We cannot accept any cycle warranty claim or return for incorrect pedal fitment or damage to crank arms caused by incorrect pedal fitment as described in the helpsheet supplied with all of our bikes.

If the wheels on the bike you've ordered become untrue through use, or the gears need readjustment after initial use, this unfortunately not covered under warranty.

Nukeproof Reactor 290 Alloy Pro Full Suspension Bike 2026 Yellow

Season:2026

Brand:Nukeproof

Code:SBIREANK

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 chainstays, UD woven carbon fibre seat stays, internal cable routing, ISCG 05 mounts, Max bearings, Threaded 73mm BB, Boost 148mm dropouts
  • Rear shock
    RockShox Super Deluxe Select+ Air, 210x55mm, Bearing End, Custom Tuned with 1 Token, Rebound 55, Compression 30, 4x Lockout
  • Fork
    RockShox Lyrik Select +, Charger 3.1 RC2, 29" Boost 15x110mm Maxle Stealth, Debonair, 150mm, Gloss Black, 44mm Offset
  • Shifter
    Sram Eagle 90 12s
  • Rear Derailleur
    Sram Eagle 90
  • Crank
    SRAM Eagle 90, 12-Speed, DUB, 165mm, 30T T-Type, 55mm CL
  • Cassette
    Sram XS-1270 T-Type 10-52
  • Chain
    Sram GX Eagle 12s
  • Brakes
    Sram Maven Base Hydraulic Disc, Organic pads
  • Wheelset
    DT Swiss M1900 Spline. F: 29", 15x110mm Boost, R:29", HG Freehub, 148x12mm Boost
  • Tyres
    F: Schwalbe Magic Mary Evo, Super Trail, TLE, 29x 2.4" Ultra Soft, R: Schwalbe Nobby Nic Evo, Super Trail, TLE, 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
  • Pedals
    Not Supplied
  • Bike weight
    15.17kg/33.4lbs (Tubeless)
Sizing Information

Nukeproof Bike Size Guide

cm161cm - 171cm169cm - 179cm177cm - 187cm185cm - 193cm191cm - 201cm
Inches5'3" - 5'7"5'6" - 5'10"5'9" - 6'2"6'1" - 6'4"6'3" - 6'7"
Gravel BikeSMLXLXXL
Mountain BikeSMLXLXXL

Size Guides are a great way to help you find the right bike, but we always recommend visiting our store to view and sit on the bike in person where possible or speaking to our advice team.

This Size Guide is based on an average build, if you have shorter arms or longer legs for example you will need to consider this when purchasing a bike. If you are between sizes, we always recommend sizing down as a smaller bike can be made bigger with adjustments. Stem length, Saddle height, Handlebar width and even Crank length can be changed to achieve the ideal riding position. See here for our general bike sizing guide.

Professional Opinion
Product Reviews
Write a review
0 As rated by 0 customers

Write a review for Nukeproof Reactor 290 Alloy Pro Full Suspension Bike 2026 Yellow

Your name
Your email address
How would you rate it?
Would you recommend this product?
Let others know your opinion
Submit Review Close
Home Mountain Biking Bikes Nukeproof Mountain Bikes