Cube Reaction TM One Mountain Bike 2025 - Hardtail MTB

The Cube Reaction TM One is built for riders looking to push their limits on the trail while maintaining the simplicity and efficiency of a hardtail. Its aluminium Lite frame is designed with Trail Motion Geometry, featuring a 65° head angle and 73.5° seat tube angle, delivering stability and control on technical terrain. With a low standover height and short chainstays, the bike remains nimble and responsive, ensuring excellent traction and quick handling through tight corners.
Key Features:
- Frame & Suspension
- Frame: Aluminium Lite with Trail Motion Geometry and internal cable routing.
- Fork: SR Suntour XCR34 2CR Air, 140mm travel, tapered steerer.
- Drivetrain: Shimano Cues 10-speed with Rapidfire-Plus shifter.
- Brakes: Magura MT Thirty hydraulic disc brakes, 203mm front rotor.
- Wheels: Cube EX30, 32H, tubeless-ready, Boost 148 spacing.
- Tyres: Schwalbe Magic Mary 2.4” (front) & Big Betty 2.4” (rear) for superior grip.
- Dropper Post: Cube Dropper Post with handlebar lever for on-the-fly saddle height adjustments.
- Finance: Available with 0% APR finance.
The SR Suntour XCR34 2CR Air fork provides 140mm of smooth suspension travel, helping to absorb impacts from rough terrain while maintaining precise steering. The frame is also ready to accommodate up to 2.5” tyres, giving riders the option to further enhance grip and comfort.
Equipped with a Shimano Cues 10-speed drivetrain, the Reaction TM One offers smooth, precise shifting and a wide-range 11-48T cassette, ensuring the right gear for any climb or descent. The Magura MT Thirty hydraulic disc brakes, with a 203mm front rotor, provide exceptional stopping power, giving you the confidence to push harder on descents.
Rolling on Cube EX30 tubeless-ready wheels, the bike is fitted with Schwalbe Magic Mary (front) and Big Betty (rear) 2.4” tyres, delivering outstanding grip and durability on a variety of surfaces. A Cube Dropper Post with a handlebar remote ensures quick saddle height adjustments, allowing for seamless transitions between climbs and descents.
Future-proofed with a UDH gear hanger for easy drivetrain upgrades, internal cable routing, and ISCG chain guide compatibility, the Cube Reaction TM One is built to grow with your riding progression. Whether you're hitting your local trails or exploring new routes, this capable and confidence-inspiring hardtail is ready to take on the challenge.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Aluminium Lite, Trail Motion Geometry, AMF,, Internal Cable Routing, , Tapered Headtube, ISCG05, Boost 148, UDH™ |
Fork | SR Suntour XCR34 2CR Air, Tapered, 15x110mm, 140mm |
Headset | VP Integrated, Top 1 1/8", Bottom 1 1/2" |
Stem | CUBE Performance CPS-Race |
Bars | CUBE Rise Trail Bar, 760mm |
Front Brake | Magura MT Thirty, Hydr. Disc Brake (180/203) |
Rear Brake | Magura MT Thirty, Hydr. Disc Brake (180/203) |
Rear Mech | Shimano Cues RD-U6000-GS, 10-Speed |
Shifters | Shimano Cues SL-U6000, Rapidfire-Plus |
Speed | 10 |
Rims | CUBE EX30, 32H, Disc, Tubeless Ready |
Front Hub | CUBE Engineered By Newmen, 15mm, Boost, 6-Bolt |
Rear Hub | CUBE Engineered By Newmen, 12mm, Boost, 6-Bolt |
Front Tyre | Schwalbe Magic Mary, Performance, 2.4 |
Rear Tyre | Schwalbe Big Betty, Performance, 2.4 |
Seat Post | CUBE Dropper Post, Handlebar Lever, Internal Cable Routing, 31.6mm |
Saddle | ACID Venec Lite |
Chainset | Shimano Cues FC-U6000-1, 32T |
Bottom Bracket | Prowheel BSA PW-MB68 |
Chain | KMC xGlide |
Cassette | Shimano Cues CS-LG400, 11-48T |
Mountain Bike Size Chart
Height
|
Bike Size
|
Mountain Bike Size
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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