Cube Reaction Pro Mountain Bike 2026 - Hardtail MTB
The Cube Reaction Pro is a capable hardtail mountain bike built for trail and XC riding, the Reaction Pro combines a lightweight aluminium frame, smooth suspension and dependable Shimano XT components for efficient climbing and confident control.
Key Features:
- Aluminium Lite double butted frame with Agile Trail geometry
- RockShox Judy Silver TK Air fork with 100mm travel
- No rear suspension
- Shimano XT 1x12 drivetrain with wide-range cassette
- Shimano BR-MT410 hydraulic disc brakes
- 29"/27.5" wheels (size split) with Schwalbe Racing Ralph 2.25 tyres
- Internal cable routing and dropper post ready frame
- Available with 0% APR finance
The Cube Reaction Pro is designed to offer a balanced mix of performance, reliability and everyday usability. Whether you're heading out on local trails, building confidence off-road or covering distance on cross-country rides, it delivers a consistent and predictable ride feel.
The Aluminium Lite frame uses double-butted tubing to keep weight down while maintaining strength. Smooth welded joints give it a clean finish, while internal cable routing helps protect components and reduce maintenance. The geometry is designed for confident handling, with a lower top tube and tapered head tube improving control on varied terrain.
Up front, the RockShox Judy Silver air fork provides 100mm of adjustable suspension travel, helping to absorb trail chatter and maintain traction. The addition of a remote lockout means you can firm things up for smoother climbs or road sections.
A full Shimano XT 1x12 drivetrain gives you a wide gear range for tackling steep climbs and fast sections alike, with reliable and precise shifting. Shimano hydraulic disc brakes offer consistent stopping power in all weather conditions, helping you stay in control when it matters.
Rolling on fast Schwalbe Racing Ralph tyres, the Reaction Pro keeps speed and efficiency in mind, making it well suited to cross-country riding as well as general trail use. The frame is also dropper post ready, so you can upgrade as your riding progresses.
Overall, the Reaction Pro is a well-rounded hardtail that focuses on dependable performance and straightforward capability—ideal for riders looking to progress their off-road riding with a reliable and capable setup.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Aluminium Lite, AMF, Double Butted, Internal Cable Routing, Tapered Head Tube, Flat Mount Brake, SIC Mount, FM Kickstand Mount |
| Fork | RockShox Judy Silver TK Air, 100mm, PopLoc |
| Headset | CUBE FPH868, Semi-Integrated |
| Stem | CUBE Performance Stem SLX, FPI-Link, 31.8mm |
| Bars | CUBE Rise Trail Bar, 680mm |
| Front Brake | Shimano BR-MT410, Hydr. Disc Brake (180/160) |
| Rear Brake | Shimano BR-MT410, Hydr. Disc Brake (180/160) |
| Rear Mech | Shimano XT RD-M8100-SGS, ShadowPlus, 12-Speed |
| Shifters | Shimano XT SL-M8100 |
| Speed | 12 |
| Rims | ACID EX25, 32H, Disc, Tubeless Ready |
| Front Hub | Shimano HB-QC300, QR, Centerlock |
| Rear Hub | Shimano FH-QC500-MS, QR, Centerlock |
| Front Tyre | Schwalbe Racing Ralph, Addix Performance, Kevlar, 2.25 |
| Rear Tyre | Schwalbe Racing Ralph, Addix Performance, Kevlar, 2.25 |
| Seat Post | CUBE Performance Post, 27.2mm |
| Saddle | ACID Venec Lite |
| Chainset | Shimano FC-MT511, 32T, Boost |
| Bottom Bracket | Prowheel BSA PW-MB68 |
| Chain | KMC X12 |
| Cassette | Shimano Deore CS-M6100, 10-51T |
Cube Reaction Size Chart
|
Size |
Height (cm) | Height (ft) |
|
XS |
152 - 160 | 5’0” – 5’3” |
|
S |
159 – 167 | 5' 2" - 5' 6" |
|
M |
166 – 177 | 5' 5" - 5' 10" |
| L | 175 – 185 | 5' 9" - 6' 1" |
| XL | 184 - 193 | 6’1” – 6’4” |
| XXL | 192 - 198 | 6’3” – 6’6” |
What size frame do I need if I am between sizes? - read here
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Cube Reaction Pro Mountain Bike 2026 - Hardtail MTB
The bike is super light and smooth, 10/10 experience.
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
We understand that the Cycle to Work process can be a little slower than we would all like - so to help you pick the perfect ride, we're now offering FREE Cycle to Work Reservations on any in stock bike (T&C's apply). Simply speak to a member of our Online Bike Experts Team via Live Chat to discuss your reservation. Find out more here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
We offer a fast, high-quality delivery service with flexible options to suit your schedule - including free delivery* over £50, next day delivery, Click & Collect, and now 24/7 InPost locker delivery for qualifying orders. Learn more about InPost
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.