CUBE Reaction Hybrid Pro 800 FE

REACTION HYBRID Pro 800 FE - polarlight

£3,099

Bosch Performance CX (120Nm), RockShox Recon Silver RL air forks, 800Wh, Shimano XT 12-speed derailleur, 4-piston brakes

CUBE Reaction Hybrid Pro 800 FE

The CUBE Reaction Hybrid Pro 800 FE is a versatile electric mountain bike designed for riders who want confidence, comfort and capable performance on every journey. Combining a powerful Bosch drive system with a practical full-equipment setup, this e-bike is ready for daily commutes, weekend adventures and longer rides beyond the tarmac.

At the heart of the CUBE Reaction Hybrid Pro 800 FE is its high-capacity 800Wh battery. It provides the energy needed for extended rides and demanding routes. The Bosch Performance Line CX motor delivers strong, responsive assistance when climbing hills, tackling rough tracks or carrying momentum across varied terrain. With several assistance modes available, you can choose the level of support that suits your route and riding style.

The Reaction Hybrid Pro 800 FE features a robust aluminium frame engineered to provide a stable and controlled ride. Its suspension fork helps absorb bumps and uneven surfaces, making woodland trails, gravel paths and broken roads more comfortable. Powerful hydraulic disc brakes provide reliable stopping performance, giving you added confidence when riding in changing conditions.

Practicality is a major strength of this CUBE electric bike. The FE specification is equipped for everyday use, with essential features that make commuting and utility riding easier. Integrated lighting improves visibility, while mudguards help protect you from road spray. A rear luggage carrier adds useful carrying capacity. This makes the bike suitable for shopping trips, work commutes and longer touring adventures.

Key features include:

  • 800Wh Bosch battery for impressive range and long-distance riding.
  • Bosch Performance Line CX 120Nm motor for powerful, natural electric assistance.
  • Full-equipment specification with practical accessories for everyday cycling.
  • Suspension fork for improved comfort across uneven roads and trails.
  • Hydraulic disc brakes for dependable braking control.
  • Aluminium frame offering a strong, stable and durable platform.

Whether you are looking for an electric mountain bike for exploring local trails or a dependable e-bike for everyday transport, the CUBE Reaction Hybrid Pro 800 FE offers an appealing balance of performance and practicality. Its combination of Bosch technology, generous battery capacity and useful FE equipment makes it a versatile choice for riders who want one electric bike capable of handling a wide range of cycling adventures.

From weekday commutes to weekend trail rides, the CUBE Reaction Hybrid Pro 800 FE will make every mile more enjoyable.

See our full range of Cube ebikes HERE.

Motor

Bosch Drive Unit Performance Line CX max. 120Nm (BDU38)
Battery

800Wh
Gears

Shimano XT RD-M8200-SGS, ShadowPlus, 12-Speed
Cassette

Shimano Deore CS-M6100, 10-51T
Forks

RockShox Recon Silver RL Air, Tapered, 15x110mm, 120mm (27,5: 100mm)
Brakes

Shimano BR-MT420, Hydr. Disc Brake (203/203)
Wheel Size

29er (27.5" on small frame)
Tyres

Schwalbe Smart Sam, Active, 2.6
Colour

polarlight´n´black
Frame Size

15" (Small), 17" (Medium), 19" (Large), 21" (Extra Large), 23" (Extra, Extra Large)
All sizing information is a guide only. If you have any questions about bike sizing, our expert team is here to help. Call us on 01905 611774.

How do I measure my height?

With your shoes off, stand upright against a wall, with your shoulders back and legs together. Use a pencil to make a small mark on the wall above your head (make sure you hold the pencil parallel to the floor). Then measure from the floor to your mark, in centimetres or feet and inches.

How do I measure my inside leg length?

With your shoes off, stand upright with your back against a wall. Place a book/ruler between your legs, level with your crotch. Then measure from the floor to the top of the book/ruler, in centimetres or feet and inches (it’s easier if a friend helps).

Q & A

Do all brands of ebike use the same unit of measurement?

No. Most brands show sizing in centimetres, however some use a S/M/L system, and others use inches. The table above includes all of these variations to help you find the right size.

Which size should I go for if I'm in between those listed?

If your measurements suggest that you have a choice of two different sizes, then in the end it’s a personal choice. Here are some rules of thumb to consider: Touring/Trekking ebikes - choose the smaller size. It is possible to make a smaller frame bigger (for example, by raising the saddle or fitting a longer the stem), whereas if the frame itself is too big for you, it’s likely to be less comfortable and won't feel right. eMTBs - choose the larger size. You’ll find an eMTB with a slightly larger frame easier to handle than one that feels cramped. You can always fit a shorter stem if necessary to reduce the reach to the handlebars.

How are ebike frame sizes measured?

An electric bike’s frame size is calculated by measuring the distance from the top of the seat tube (where the seat post inserts), to the centre of the front chainring. Sizing Guide