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Trail Surge Ltd · Unit 62, Centenary Business Centre, Nuneaton, CV11 6RY
Shopping for an electric bike from Cyrusher? Some websites look official without being run by the brand. Before ordering, check the retailer behind the website.
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Can they service or repair your e-bike if something goes wrong?
We have a real Nuneaton showroom and repair workshop, with UK-based servicing, repairs and 12-month warranty support. We're here for you after delivery, too.
Visit us: CV11 6RY · Mon–Fri, 10am–4pmTrail Surge Ltd · Company No. 16935369 · VAT No. 521226239
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TrailSurge is UK registered and VAT registered: Company No. 16935369 · VAT No. 521226239.
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Select Pickup · TrailSurge Nuneaton at checkout. We'll confirm when your order is ready; dates are requested, not guaranteed.
Policy conditions and return costs may apply. Your statutory rights are unaffected.
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Included with your purchase
12 monthsof cover
UK-based warranty and after-sales support
Frame & forks · Motor & controller · Battery & charger · Factory-fitted electrics & mechanical parts
Fault assessment, warranty guidance and help arranging eligible repairs or replacement parts.
Contact our UK team with your order number and a few photos.
Normal wear, accidental damage, misuse and unauthorised modifications are excluded. Eligibility and remedies are subject to the full warranty terms.
Contact TrailSurge with your order number, a description of the fault and clear photos or a video. Our team will assess the issue and explain the next steps.
2 years on the frame, motor and controller; 1 year on the battery, hydraulic brakes, fork, rear shock, display, pedal-assist sensor, charger, cockpit, seat post, bottom bracket, crankset, rear rack and shifting system.
Confirmed manufacturer defects in the listed original components. An accepted warranty normally provides one replacement part for each eligible covered component.
Separate manufacturer terms apply. Warranty periods are not added together.
Frame & forks · Motor & controller · Battery & charger · Factory-fitted electrics & mechanical parts
Fault assessment, warranty guidance and help arranging eligible repairs or replacement parts.
Contact our UK team with your order number and a few photos.
Normal wear, accidental damage, misuse and unauthorised modifications are excluded. Eligibility and remedies are subject to the full warranty terms.
Contact TrailSurge with your order number, a description of the fault and clear photos or a video. Our team will assess the issue and explain the next steps.
2 years on the frame, motor and controller; 1 year on the battery, hydraulic brakes, fork, rear shock, display, pedal-assist sensor, charger, cockpit, seat post, bottom bracket, crankset, rear rack and shifting system.
Confirmed manufacturer defects in the listed original components. An accepted warranty normally provides one replacement part for each eligible covered component.
Separate manufacturer terms apply. Warranty periods are not added together.
The Cyrusher Flex is a folding fat-tyre electric mountain bike that combines versatility with power. With its 250W road-legal motor, full suspension system and robust 48V 15Ah battery, it’s designed for commuting, trail riding and off-road exploration while still remaining compliant for UK and EU use.
Smooth Power Delivery
The 250W brushless rear hub motor provides consistent pedal assistance up to 25km/h, with higher peak output available for private/off-road use. Multiple PAS levels and Shimano gears ensure a smooth and adaptable ride across all terrains.
Comfort & Control
26” x 4.0” fat tyres deliver exceptional grip and stability whether on city streets, gravel paths or sand. The full suspension system—front suspension fork and rear shock—absorbs bumps for a smooth ride, while hydraulic disc brakes provide confident stopping power in all conditions.
Smart Battery System
The Flex is powered by a 48V 15Ah lithium-ion battery, removable and lockable for convenience. It offers up to 80–100km of pedal-assist range per charge, with a charging time of around 6–8 hours.
Tech You Can Trust
A colour LCD display provides real-time ride data including PAS level, speed, battery life, and distance. Integrated LED front and rear lights improve visibility and safety in low-light conditions.
Built for Everyday Use
With its foldable aluminium frame, the Flex combines portability with strength, supporting riders up to 150kg. Its design makes it practical for commuting, storing in compact spaces, or transporting in a car, while still delivering mountain bike performance.
| Collection | Cyrusher Electric Bikes |
|---|---|
| Brand | Cyrusher |
| Motor Power | 250W |
| Battery | 48V 15AH |
| Top Speed | 15.5 MPH |
| Max Range | 40 Miles |
| Charging Time | 6+ Hours |
| Shock Absorbers | Full Suspension (Front + Back) |
| Wheel Size | 26inch |
| Brakes | Dual Hydraulic Disc Brakes |
| Gears | 8 Speed Shimano Gears |
| Bike Weight | 30KG |
| Max Climb | 25 degrees |
Check rider measurements and sizing before you order.
Fit guidance: Full-size 26 in mountain frame with an adjustable 88–96.5 cm saddle height. Contact us if you need a fit check.
Sizes are a guide. Rider proportions, footwear and setup can affect fit.
Hydraulic braking, wider tyres and integrated lighting support everyday awareness.
Move from tarmac to compact gravel and light trails without changing your plans.
Switch between natural torque response and steady cadence support.
1 x Cyrusher Flex Electric Bike
1 x Charger
2 x Keys
1 x Tool Kit
1 x User Manual
Explore e-bikes, electric scooters and electric dirt bikes in person. Get expert advice and find your perfect ride.
Have a question before ordering or need help afterwards? Our UK-based team is here to help with product advice, orders, parts and warranty enquiries.
Keep your ride performing at its best. Our Nuneaton workshop offers servicing, diagnostics and repairs for bicycles, e-bikes and electric scooters.
Download Product Manual