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Today’s DealsREACTION HYBRID PERFORMANCE, 625
A 27.5″ / 29″ aluminum frame hardtail crosscountry e-bike with mid-range components.
Manufacturer Price
€2,649($3,082)| Weight | 52.2 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Hardtail, 100mm |
| Fork | Suntour NVX |
| Wheels | 27.5″ / 29″ Aluminum |
| Drivetrain | 1 × 9 |
| Groupset | Alivio |
| Motor | Bosch 250W 65Nm mid-drive |
| Battery | Bosch 625Wh |
| Brakes | Shimano Hydraulic Disc |
5'2" – 5'7"
5'6" – 5'11"
5'9" – 6'2"
🐐 Estimated
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Feb 2023 · Seanwhite
Cube has just two models in its Reaction HPA range of hardtails. The longer travel TM with a 130mm travel fork and this, the Pro, with a more XC-orientated 100mm Rock Shox Judy leading the charge. And it’s not just the fork travel that sets them apart; they have completely different alloy frames. Best hardtail mountain bikes As you’d expect, the geometry numbers differ between both bikes, but so does the seat tube diameter, rear brake mount, bottom bracket standard and sizing structure. Need to know: Sorted lock-on grips are best of the bunch Full Shimano 12-speed drivetrain performed faultlessly in all conditions RockShox PopLoc remote lets you lock out the 100mm travel Judy fork Shimano XT brakes provide powerful, consistent stopping power With that in mind, you could be forgiven for thinking that the Reaction Pro is an out and out, lightweight XC focused aluminium race hardtail filling the same niche – and price point – as Giant’s XTC. But drill down on the details and it quickly becomes apparent that this bike shares the same aluminium frame as the £1,149 Attention SL hardtail that we tested back in the summer of 2022. To bring you up to speed, we had mixed feelings about that bike. Yes it was well finished and had a stellar build kit, but the sizing and geometry both felt very dated. With the same frame pitched against three hardtails with a definite XC focus, where headline weights and long, fast-paced rides are near the top of the design brief, would the Reaction Pro make more sense? Before we answer that question, let’s take a closer look at the bike. The Reaction Pro is offered in two colours; the stealthy black finish that we have on test and a sparkling Switchblue ’n’ Black. The frame has a clean, minimalist finish, without the visual bulk of some aluminium frames. Its sleek silhouette accentuated by the slender 27.2mm diameter seatpost – a rare sight now, as are the traditional quick release rear dropouts with 135mm hub spacing. In that respect the frame shows its age, which makes it even more surprising to see that it has a flat mount standard for the rear brake, something that only recently arrived on mountain bikes. With five frame sizes available, Cube has taken a similar approach to Trek and designed the size small around 27.5in wheels, with the four larger bikes all benefiting from the improved roll over of the bigger 29in wheel. It’s a sound move as the lengthy 447mm chainstays on this XL are replicated on all of the 29in wheel options and would be way too long for smaller riders. And while size-specific chainstay lengths are starting to appear on trail hardtails, they are still a rare sight on hardtails from mainstream brands. And while the chainstays are long, reach measurements are short. Jump on the Cube straight after riding the Giant and although both are marked as XL frame sizes, the difference in fit is remarkable. …Continue reading »
Shimano finishing kit
Dated geometry and sizing

Sep 2021
Verdict: Great value all round trail bike with commuting potential

Jun 2021
Price: $2899.00 | Model Year: 2021 | Great value for a more premium product here. This is a versatile hardtail electric mountain bike with quality fenders and lights. It's functional in urban and off-road environments. CUBE sells an optional rear rack that reinforces the rear fender and allows the Reaction Hybrid Performance to be used for commuting purposes.
Great value for a more premium product here. This is a versatile hardtail electric mountain bike with quality fenders and lights. It's functional in urban and off-road environments. CUBE sells an optional rear rack that reinforces the rear fender and allows the Reaction Hybrid Performance to be used for commuting purposes.
Bosch motor, downtube integrated battery, and compact display make this a reliable and aesthetically pleasing ebike. The third generation Bosch Performance Line Cruise mid-drive is compact and quiet, but still very powerful with up to 65nm of torque. It offers shift detection and uses a standard sized chainring.
The 9-speed Shimano Alivio derailleur with 11 to 36 tooth cassette is above average, offering smooth shifts and a comfortable pedal cadence options for varied conditions. Excellent Shimano hydraulic disc brakes with larger 180mm rotors deliver smooth powerful stops. Six frame sizes and two frame styles (high-step and mid-step) make it approachable and comfortable.
Low capacity 400 watt hour battery keeps the price and weight down, it may also allow for the shorter downtube lengths on the smaller frame sizes. Limited readouts on the stock Bosch Purion display panel, and no USB charging option here. The bike can be upgraded to use a fancier Bosch Kiox or Nyon aftermarket. Very basic coil suspension fork with preload adjust only, but the tapered steer tube allows for fancier air forks after market.

Jul 2020 · Tom Marvin
Fast reactions to pedal inputs help on climbs, but the stiff chassis affects descending capability
Instant acceleration
Impressive spec, with well-chosen components across the board
Harsh ride chokes descending speed and rough-trail acceleration
Tyres are thin and need higher pressures to prevent punctures, adding to the uncompromising ride feel
| Frame | Aluminium Superlite, Gravity Casting, Agile Ride Geometry, Tapered Headtube, Internal Cable Routing, Full Integrated Battery, Kickstand/Fender/Carrier Mounting Points Color: Shinyapple’n’black |
|---|---|
| Fork | SR Suntour NVX30 Coil, 100mm Travel: 100mm Spring Type: Coil |
| Headset | 27.5: ACROS AZX-1041, BlockLock 135°, 1 1/8" straight, Top Zero-Stack 1 1/8" (ZS 44mm), Bottom Zero-Stack 1 1/2" (ZS 56mm) // 29: ACROS AZF-1039, 1 1/8" straight, Top Zero-Stack 1 1/8" (ZS 44mm), Bottom Zero-Stack 1 1/2" (ZS 56mm) |
| Stem | CUBE Performance Stem Pro, 31.8mm |
| Handlebar | CUBE Rise Trail Bar, 720mm |
| Saddle | Natural Fit Sequence |
| Seatpost | CUBE Performance Post, 30.9mm Type: Rigid |
| Pedals | ACID PP MTB |
| Grips | CUBE Race Grip 31mm, 1-Clamp |
| Rear Derailleur | Shimano RD-M3100-SGS, 9-Speed |
|---|---|
| Crank | ACID E-Crank, 175mm, 38T |
| Shifters | Shimano SL-M3100-R, Rapidfire-Plus |
| Cassette | Shimano CS-HG201, 11-36T |
| Chain | KMC X9 |
| Brakes | Shimano BR-MT200, Hydr. Disc Brake (180/180) Type: Shimano Hydraulic Disc |
| Rims | Rodi Blackrock 23, 32H, Disc, Tubeless Ready |
|---|---|
| Front Hub | Shimano HB-TX505, QR, Centerlock |
| Rear Hub | Shimano FH-TX505, QR, Centerlock |
| Tires | Schwalbe Smart Sam, Active, K-Guard, 2.35 |
| Motor | Bosch Drive Unit Performance Generation 3 (65Nm) Cruise (250Watt) |
|---|---|
| Battery | Bosch PowerTube 625 |
| Display | Bosch Purion |
| Charger | Bosch 2A |
First added August 7
Last updated November 26
Not listed for 1,289 days