Cyrusher Flex - Mountain Electric Bike - 250W

Truth be told, one of the most common questions we get asked is whether an electric mountain bike can do double duty — trail riding at the weekend, sensible commuting Monday to Friday. Most of the time, the honest answer is "sort of." The Cyrusher Flex is one of the bikes where that answer changes to a genuine yes.

It's built around a full suspension setup — an SR Suntour fork up front and a MEROCA MT-100 oil-spring shock at the rear — that takes the edge off rough ground without making the bike feel sluggish or bouncy on smooth tarmac. The 27.5″ × 2.6″ Kenda mountain tyres give you real grip on loose and uneven ground, while remaining perfectly capable on cycle paths and urban streets.

Two riding modes, one bike

What sets the Flex apart from most electric mountain bikes in this price range is its dual sensor system. Switch to torque mode and the motor responds to your actual pedalling effort — the harder you push, the more assist you get. It feels natural and connected, particularly on climbs. Switch to cadence mode and you get a steadier, more relaxed cruise — good for longer flat sections where you want consistent support without thinking about your effort level. It's a genuine difference, not just a marketing checkbox.

Enough range to ride without range anxiety

The 48V 15Ah LG battery delivers up to 59 miles of assisted range on a single charge. That's enough for a week of urban commuting or a solid day's leisure riding on mixed terrain. The battery is removable, so charging at home or at the office is straightforward — no need to roll the whole bike to a socket.

Shimano 8-speed gearing, hydraulic disc brakes front and rear, and integrated lighting round out a package that punches above its weight for riders who want a capable electric mountain bike for UK mixed terrain riding without paying trail-bike prices.

Dual Sensor System (Torque & Cadence) — Switch between torque mode for responsive, effort-matched assist and cadence mode for relaxed, consistent cruising. Two riding experiences, one bike — a genuinely useful flexibility rather than a theoretical one.

48V 250W Rear Hub Motor — Smooth, consistent assistance for urban commuting and trail riding. Powerful enough to handle loaded rides and steeper gradients without becoming aggressive or unpredictable.

Full Suspension (SR Suntour Fork + MEROCA Rear Shock) — Absorbs trail chatter, road impacts, and rough surfaces. Keeps the bike planted and predictable across mixed UK terrain.

27.5″ × 2.6″ Kenda Mountain Tyres — Real grip on loose ground, gravel, and uneven paths. Wide enough to inspire confidence off-road without feeling unwieldy on tarmac.

48V 15Ah LG Battery — Up to 59 miles of assisted range. LG cells for consistent, reliable capacity over hundreds of charge cycles. Removable for convenient charging anywhere.

Hydraulic Disc Brakes (180mm) — Confident stopping power in all weather. Essential on mixed terrain where you need controlled, predictable braking on both descents and in traffic.

Shimano 8-Speed Drivetrain — A versatile gear range that handles everything from steep climbs to flat urban sections with reliable, smooth shifts.

Integrated Lighting & Colour LCD Display — Safe for commuting in low light and useful for monitoring speed, battery level, and assist mode at a glance.

• Material – 6061 Aluminium Alloy
  
• Motor – 48V 250W Brushless Rear Hub Motor
  
• Assist System – Dual Sensor: Torque & Cadence
  
• Tyres – 27.5″ × 2.6″ Kenda mountain tyres
  
• Battery – 48V 15Ah LG Removable Lithium-Ion Battery
  
• Max Speed – 25 KM/H (15.5 MPH)
  
• Max Mileage (Range) – Up to ~95 KM (59 miles) on pedal assist
  
• Charging Time – Approx. 7-9 hours (48V 2A charger)
  
• Brake – Fully hydraulic disc brakes, 180 mm front & rear rotors
  
• Rear Derailleur – Shimano 8-Speed
  
• Fork – SR Suntour suspension fork (front)
  
• Rear Suspension – MEROCA MT-100 oil-spring rear shock
  
• Display – Colour smart LCD display (left-mount)
  
• Bike Weight (with Battery) – ~31 kg (68.3 lbs)
  
• Maximum Load – Up to 150 kg (350 lbs)
  
• Rims – Aluminium Alloy
  
• Crankset – 46T Alloy Dual-Sided Aluminium Crankset
  
• Chain – Stainless / high-durability chain
  
• Saddle – Breathable ergonomic sport cushion seat
  
• Seat Post – Adjustable height seat post (approx. 30-35 mm diameter)
  
• Kickstand – 6061 aluminium kickstand
  
• Lighting – Integrated headlight & rear tail light included
  
• Rider Height – 170 cm ~ 200 cm (5'7″ ~ 6'7″)

Free Delivery - Order today and you can expect to receive your new bike within 3-4 working days. You will be notified of shipping information once the product has been dispatched.

Warranty - Enjoy peace of mind with a 2-year warranty on the frame and a 1-year warranty on the other components. 

If you have any queries regarding this, you can drop us an email at: sales@ebikesexpress.co.uk