Nukeproof Reactor 290 ST Factory Carbon Bike (XT - 2021)

A shorter travel model for tackling day-long rides, the limited edition Nukeproof Reactor 290 ST Factory Carbon Bike is efficient and comfortable. Its carbon frame is built up with Fox Factory suspension and Shimano XT 1x12 gearing.

Crosscountry/backcountry/upcountry/downcountry: However, you define it, the Reactor ST does it all and everything in between. It just might be the most versatile bike Nukeproof has ever made.

With a 130mm fork combined with 125mm of rear suspension, the Reactor ST combines the best of an enduro bike (long, low and slack) with the best of an XC Race bike (lightweight spec and efficient suspension) to create a sprightly yet seriously capable machine.   

Frame Construction: 

To optimise the weight, strength and stiffness, the Reactor 290 ST Carbon frame features a full UD woven carbon fibre frameset (Including chain and seat stays).  

Adjustable Geometry: 

The Reactor ST features a 66.8° (66.3° Low) Headangle atop a 76.3° (75.8° Low) seat angle across a 460mm reach on a Medium frame. Nukeproof also offers the frame in Large and X-Large sizes. The Reactor ST frames feature the same “flip chip” design as the regular Reactor frame 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 ST into a more aggressive machine, dropping the bottom bracket 6mm and slackening the head angle by half a degree. It is there to maximise the descending capabilities.

Suspension Design: 

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 ST some squat when braking hard, maintaining rider position and providing a good amount of pressure through the tyre to ensure traction. The Reactor ST is designed to reward the rider and ensure you get that stoke factor in on any ride.    

About the Nukeproof brand

Nukeproof- It’s an attitude. Originating from Grand Rapids, Michigan in 1990, Nukeproof is now based in Belfast, Northern Ireland. Nukeproof’s aim has always been to design innovative and desirable performance-enhancing products for today's mountain bike gravity rider. Nukeproof products are designed for and tested by the worlds fastest riders to ensure that they are ready for the trails and you. Nukeproof has won numerous media and industry awards and has a successful history in mountain bike racing. In 2017 Sam Hill took his Nukeproof Mega 275c equipped with Nukeproof components to the overall Enduro World Series title to add to victories and podiums in the UCI Downhill World Cup. Whatever you're looking for, should it be technical ride wear, upgrade components or a gravity focused bike, Nukeproof has you covered.