Cyrusher Flex Electric Mountain Bike
SKU: A76183In Stock
SPEED15.5 Mph
RANGE59 Miles
MOTOR250W
BATTERY15Ah
CHARGING7-9 Hours
WEIGHT68 lbs
This Model Is Fully Compliant With UK Road Regulations
This bike is built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning it can be used on public roads and cycle paths without registration, tax, or a licence. Motor assistance is limited to 250W and cuts off at 15.5 mph (25 km/h).
See UK LegislationThe Cyrusher Flex: Your All-Terrain Companion
The Cyrusher Flex is built for UK riders who want one e-bike that handles the daily commute, weekend trails, and everything in between. With full suspension, a powerful 250W motor, and a long-range 48V 15Ah battery, it delivers up to 59 miles of assisted riding on a single charge. Whether you're navigating city streets or exploring countryside paths, the Flex offers a smooth, stable, and enjoyable ride that adapts to your lifestyle.
Effortless Power for Everyday Riding
The Cyrusher Flex features a 48V 250W brushless rear hub motor that provides smooth, quiet assistance up to 15.5 mph, fully compliant with UK road law. Whether you're accelerating from traffic lights or tackling a gentle incline, the motor delivers reliable power without breaking a sweat. It's the perfect balance of performance and efficiency for urban commuting and light off-road adventures.
Ride Farther with a Long-Range Battery
Equipped with a 48V 15Ah battery using LG cells, the Cyrusher Flex offers an impressive range of up to 59 miles on a single charge in pedal-assist mode. That's enough for a week of commuting or a long weekend ride without range anxiety. The battery charges in 7-9 hours and is rated for 800 charge cycles, ensuring dependable performance for years to come.
Full Suspension for a Smooth Ride
The Cyrusher Flex is designed to absorb bumps and vibrations with its EXSHO front suspension fork and DNM AO-6 rear shock absorber. This full suspension system smooths out rough city streets, potholes, and gravel paths, reducing fatigue on longer rides. Combined with wide 27.5" x 2.6" Kenda tyres, the Flex delivers a comfortable, controlled ride on any surface.
Confident Stopping Power in All Conditions
Safety is paramount, and the Cyrusher Flex is equipped with LOGAN fully hydraulic disc brakes, featuring 180mm rotors front and rear. These brakes provide strong, reliable stopping power in wet or dry weather, giving you confidence on busy UK roads. An integrated taillight enhances visibility to drivers and other cyclists, day or night.
Smart Display and Dual Sensor Control
The Cyrusher Flex features a colourful smart computer display mounted on the left, showing essential ride data at a glance. You can switch between torque sensor mode for responsive, hill-climbing power and cadence sensor mode for smooth, steady cruising. This dual sensor system lets you tailor the riding experience to your preference and terrain.
Durable Frame and Everyday Practicality
Built on a 6061 aluminium alloy frame with an internal battery, the Cyrusher Flex is both sturdy and sleek. It supports a payload of up to 350 lbs and fits riders from 5'7" to 6'7", making it versatile for many users. The bike includes a kickstand, front light, and rear rack mounts, making it ready for daily errands and commutes. With its compact design, it's easy to store in a hallway or shed.
- BRANDCyrusher
- CATEGORYMountain
- MOTOR POWER250W
- RANGE59 Miles
- SPEED15.5 Mph
- BATTERY15Ah
- WEIGHT68 lbs
- CHARGING TIME7-9 Hours
- BRAKE SYSTEMHydraulic Disc
- FRAME MATERIALAluminum Alloy
- MAXIMUM LOAD350 lbs
- INPUT VOLTAGE48V
- TIRE SIZE27.5 inch
- TORQUEN/A
Secure checkout and fast UK delivery on every order.
- Free standard UK delivery on most bikes — 2 to 7 business days
- Express delivery may be available on request
- Full tracking included with every order
- Pay securely with Visa, Mastercard, PayPal, Apple Pay, Google Pay, or Klarna
- 0% finance available through Klarna at checkout
Before you order:
- Delivery is to UK mainland addresses — some remote areas may have a small surcharge
- Most bikes arrive 85–90% pre-assembled and include basic tools for setup
- If you are unsure about sizing or specs, contact us before you buy
Full details at Payment & Shipping.
Simple and fair terms so you can buy with confidence.
- 14-day return window — if the bike is not right for you, send it back
- The bike must be unused, in original packaging, with all accessories included
- A refund or replacement is issued after we receive and check the return
Please note:
- Returns for change of mind must meet the unused and original condition requirement
- If we sent the wrong item or it arrived faulty, we cover return shipping in full
- All bikes include a 12-month manufacturer warranty as standard
Full details at Returns & Refunds and Warranty.
Customer Reviews
No approved reviews yet. Be the first to share your experience!
Write a Review
Share your experience and help other customers make the right choice.
More From This Brand
Explore more electric bikes from the same brand, selected for similar quality, performance, and everyday value.
Helpful reading
Guides and reviews to help you decide.
Buying GuideBest Electric City Bikes UK 2026, Top Commuter E-Bikes
Our complete guide to the best electric city bikes for UK commuters in 2026. Discover practical e-bike recommendations, legal requirements, and tips for picking the perfect urban ride from Biktron.
Read guide →
Buying GuideBest Electric Mountain Bikes UK 2026, Off-Road E-MTBs Ranked
Looking for the best electric mountain bike to tackle UK trails? Our 2026 guide ranks the top off-road e-MTBs, covering power, range, and UK law. Discover your perfect ride.
Read guide →
Buying GuideBest Cheap Electric Bikes UK 2026, Quality Under £700
Explore our 2026 guide to the best cheap electric bikes in the UK under £700. We review the top budget models, explain UK e-bike law, and help you choose a reliable, affordable ride.
Read guide →
Not sure which electric bike is right for you?
Answer a few quick questions and we will help point you towards the bikes that best match your riding style, budget and daily needs. Fast, free, no commitment.
Start the Bike QuizGet £50 Off Your First Order
Sign up to the BikTron newsletter and receive £50 off your first purchase. Be the first to hear about new bikes, special deals, and practical electric bike tips — no spam, just useful updates.
New subscribers only. Discount applied at checkout.
