Cube Reaction Pro Mountain Bike 2026 - Hardtail MTB
Frame description
The Reaction's sleek looks are thanks to its Smooth Welded head tube and seat tube junctions. It incorporates a threaded bottom bracket and Internal Cable Routing, plus a flat disc mount that integrates seamlessly with our kickstand mount and integrated mounting points for ACID mudguards and carrier. Trail-ready geometry includes a lower top tube and tapered head tube for more confident handling, and there's plenty of room to run wide, grippy and comfortable 2.25in tyres. And, as your skills increase, there's scope to fit a dropper post upgrade.
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
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Cube Reaction Pro Mountain Bike 2026 - Hardtail MTB
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.
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