Range
59 Miles
Top Speed
15.5 MPH
Battery
48V 15Ah
Motor
250W (87N·m)
Payload Capacity
350 lbs
Sensor
Torque & Cadence

59MI

Maximum Range

15.5MPH

Assist Speed

720Wh

48V 15Ah Battery

250W

Rear Hub Motor

87N·m

Maximum Torque

350LBS

Payload

Hear From the Experts

SEE FLEX THROUGH A RIDER’S EYES

Cycling creators tested the Flex across roads, climbs, gravel and off-road routes. Watch their full reviews before you decide.

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Cyrusher Flex e-Bike Review

Cyrusher Flex e-Bike Review Supercub Adventures
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I Took the Cyrusher Flex to a Downhill Bike Park... Did It Survive?

★★★★★ (5/5)
“I absolutely love the look of this bike. The paintwork, the design, the geometry all looks really, really nice. The components and build so far are very impressive, and it has withheld absolutely everything I’ve put it through.”

I Took the Cyrusher Flex to a Downhill Bike Park... Did It Survive? — Southcoast Surron
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Cyrusher Flex : peut-on vraiment avoir un VTT électrique full-suspendu pour 1 700 € ?

★★★★☆ (4.5/5)
“The suspension really impressed me — it absorbs bumps extremely well and makes the bike incredibly comfortable on trails, gravel, and uneven terrain.”

Cyrusher Flex : peut-on vraiment avoir un VTT électrique full-suspendu pour 1 700 € ? — Dust And Trip
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CYRUSHER FLEX , JE VOUS DIT TOUT SUR CE VTT !

★★★★★ (5/5)
“The dual torque and cadence sensor system is amazing. I would really like to see this on every e-bike because it works incredibly well and makes the riding experience much more versatile.”

CYRUSHER FLEX , JE VOUS DIT TOUT SUR CE VTT ! — Manureva
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Homologué, confortable et fun : le Cyrusher FLEX coche toutes les cases !

★★★★★ (5/5)
“The full suspension system delivering exceptional comfort and control across roads, rocky trails, and challenging off-road terrain.”

Homologué, confortable et fun : le Cyrusher FLEX coche toutes les cases ! — Tom & Compagnie
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CE VTT AE CYRUSHER FLEX TOUT SUSPENDU VA VOUS SURPRENDRE ! ✅

★★★★★ (5/5)
“It’s a real success — the dual torque and cadence sensor system adapts perfectly to the way you ride, making this a versatile bike that can handle almost anything.”

CE VTT AE CYRUSHER FLEX TOUT SUSPENDU VA VOUS SURPRENDRE ! ✅ — YOTECH
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Présentation du CYRUSHER FLEX !!

★★★★★ (5/5)
“The Cyrusher Flex is really the ideal bike for someone who loves fishing and hiking. It’s a bike that allows you to do everything — explore new spots, ride comfortably for many kilometers, and enjoy your adventures with ease.”

Présentation du CYRUSHER FLEX !! — CAPTAIN' CARP

Meet Flex

Ready For The Route You Planned
And The One You Didn’t.

Flex is built for riders who want one e-bike to feel at home on city streets, cycle paths, compact gravel and light trails. It adds comfort where the ground gets rough without giving up the control and practicality an everyday ride needs.

BUILT AROUND THE RIDE

Comfort, Control and Freedom in One Frame.

The essentials work together so Flex feels composed on everyday roads and capable when the route becomes less predictable.

One Bike. More Terrain.
Move from tarmac to compact gravel and light trails without changing your plans.
Full-Suspension Comfort
Take the edge off potholes, roots and repeated surface chatter.
Two Ways to Ride
Switch between natural torque response and steady cadence support.
Up to 59 mi
More room for commuting, exploring and the unplanned detour.
Confident Control
Hydraulic braking, wider tyres and integrated lighting support everyday awareness.
Made for Real Routines
A removable battery and familiar bicycle controls keep ownership straightforward.

Choose the Route, Not the Category.

Flex is happiest where everyday roads meet the quieter way home.

CITY STREETS

Comfort over patched roads, speed humps and the rough edges of the daily commute.

BIKE PATHS

Relaxed miles on greenways, waterfront paths and traffic-free routes.

COMPACT GRAVEL

More reassurance when smooth pavement gives way to loose, uneven surfaces.

FOREST TRAILS

Explore maintained tracks and light trails without turning the ride into a technical challenge.

Mixed Terrain

Link road, path and trail in the same ride with fewer compromises.

Why It Rides Differently

Five Details You Feel on the Road.

Select a point on the bike to see how it changes comfort, control or effort.

—— Dual Sensor System

Two Assistance Modes. One Bike That Adapts.

Use a natural response when you want the bike to follow your effort, or choose steady support when consistency matters more.

Natural Control
Easy Cruise

Natural Response

Push harder. Get more help.

Torque mode reads how firmly you press the pedals and adjusts support in real time. Starts feel intuitive, climbs feel easier to manage and the bike stays closely connected to your effort.

  • Best for: Mixed terrain, changing gradients and riders who prefer a bicycle-like feel.
  • Ride character: Responsive, progressive and closely matched to pedal pressure.

Steady Support

Keep turning. Let Flex carry the rhythm.

Cadence mode provides consistent assistance once the pedals begin moving. It suits relaxed cruising and riders who prefer predictable support without pressing hard through every pedal stroke.

  • Best for: Level routes, easy cruising and a more relaxed pedalling style.
  • Ride character: Simple, steady and easy to understand from the first ride.

Go Further on Every Ride.

Up to 95 KM of assisted riding with a removable 48V 15Ah battery. Actual range varies with terrain, assistance level and riding conditions.

- Maximum assisted range

59

Mi

More distance between charges.

A best-case figure achieved under favourable test conditions. Your distance will change with the route, assistance level and how the bike is used.

WHAT THAT RANGE CAN COVER

These examples provide a realistic guide to typical riding distances. Your actual range will vary depending on terrain, assistance level, rider weight and weather conditions.

 

Daily Commute

Urban roads, cycle lanes and regular stop-start riding.

10-20 MI

TYPICAL SHORT JOURNEY

Mixed-Surface Ride

Road, compact gravel and moderate elevation.

20-40 MI

VARIED TERRAIN

Long Leisure Ride

Lower assistance and favourable conditions.

UP TO 59 MI

MAXIMUM-RANGE CONDITIONS

— Confidence

Control You Can Trust From Start to Stop.

Braking, visibility and stable handling matter on every ride—not only when the trail gets rough.

Hydraulic Braking
Hydraulic Braking

Progressive stopping power gives you more control in traffic, on descents and when the surface is loose.

Integrated Visibility
Integrated Visibility

Front and rear lighting help you see the road and remain more visible when daylight fades.

Stable Handling
Stable Handling

Wider tyres and a composed chassis help Flex feel planted when the route becomes uneven.

Support After Delivery
Support After Delivery

Current warranty, returns, service and spare-parts information is available before purchase and remains accessible throughout ownership.

One Bike That Earns Its Space.

The value of Flex is not one headline specification. It is how many different rides it can replace.

— One Bike · Different Roles

RIDE TO WORK. TAKE THE LONGER WAY HOME. KEEP GOING AT THE WEEKEND.

Flex is built for riders who would rather own one adaptable e-bike than choose between an urban commuter and a light-trail machine.

Commuting

Regular road and cycle-path use

Local Errands

Short practical journeys

Fitness Rides

Selectable rider effort

Light Trails

Gravel and compact tracks

MORE USE FROM ONE PURCHASE

Road, path, gravel and light-trail capability gives the bike a broader role across the week.

CHARGE WHERE IT SUITS YOU

Remove the battery for indoor charging instead of planning every charge around the bike’s parking space.

FAMILIAR PARTS, FAMILIAR CONTROLS

A conventional drivetrain, hydraulic brakes and bicycle-style handling make Flex easier to understand and maintain.

Is Flex the Right Bike for You?

A versatile bike still needs to match the way you ride, store and handle it.

Load video:
 

Flex makes sense when you want:

One bike for changing surfaces

Your usual route can include roads, paths, gravel and maintained light trails.

More comfort than a rigid commuter

You value reduced impact through the handlebar and saddle on rougher ground.

Choice in how assistance feels

You want natural torque response and steady cadence support in the same bike.

A removable battery

You need to charge indoors or want simpler battery storage.

A substantial, planted ride

You prefer stability and comfort over an ultra-light bike that is easy to carry upstairs.

Consider another style if:

You regularly lift the bike up stairs, need a low step-through frame, or plan to ride extreme technical or downhill trails.

Size & Fit

Frame Size

Reach
Standover Height
Wheelbase
Min Saddle Height
Max Saddle Height
Total Length
Handlebar Height
Rider Height

Standard

17''/43cm
28.3''/72cm
47.2''/120cm
34.6''/88cm
38''/96.5cm
75.6''/192cm
41.7''/106cm
5'7" ~ 6'7" (170cm ~ 200cm);
Technical Specifications
Battery
48V15Ah LG cells
Charger
48V 2.0A
Battery Charge Time
7~9 hours
Battery Lifetime
800 charges
Speed Class
Up to 15.5 kph on Level 5 PAS
Weight with Battery
68.35 lbs (31kg)
Battery Weight
8.6 lbs(3.9 kg) Range
Motor
48V 250W Brushless Rear Hub Motor
Payload Capacity
350 lbs
Mechanical
Tires
Kenda 27.5" x 2.6" Tires
Display
Left-mount display, Colorful Smart Computer
Handle Bar
680mm
Brakes
Logan Fully Hydraulic Disc Brakes 180mm Front + Rear
Crank Set
46T Alloy Dual-Sided Aluminum
Derailleur
8 Speed Shimano Rear Derailleur
Front Fork
Suspension fork
Frame
6061 Aluminum Alloy with Internal Battery
Gearing
Shimano 8-speeds
Kickstand
6061 Aluminum Kickstand
Rims
Aluminum Alloy
Saddle
Sport Cushion Seat
Sensor
Torque Sensor+Cadence Sensor
Headlight
Yes
Brake tail lights
Yes
Warranty & Note
Frame2 years
Parts1 year
Battery1 year
Terms & ConditionsThis warranty only applies to the original owner of a Cyrusher and is limited to the replacement of defective parts. Cyrusher covers the cost of the replacement, buyer is responsible for the shipping cost.

Know Before You Ride.

Is Flex suitable for everyday commuting?

Yes. Flex is designed for city streets and cycle paths as well as compact gravel and maintained light trails. Its full-suspension construction makes it more substantial than a lightweight urban bike, so consider how often you need to lift or carry it.

What is the difference between torque and cadence mode?

Torque mode adjusts support according to how firmly you pedal, creating a more natural and responsive feel. Cadence mode provides steadier assistance once the pedals begin turning, which can feel easier and more relaxed on flatter routes.

Can the battery be removed for charging?

Yes. The 48V 15Ah battery can be charged on the bike or removed for indoor charging and storage.

Will every rider achieve 59 miles?

No. The 59-mile figure is a maximum assisted range under favourable conditions. Actual distance varies with assistance level, terrain, gradients, rider and cargo weight, wind, temperature, tyre pressure, stop-start frequency and riding style.

What terrain is Flex intended for?

Flex is intended for roads, cycle paths, compact gravel, towpaths, forest tracks and maintained light trails. It is not designed as a competition downhill or extreme technical mountain bike.

How should I choose the right size?

Use the final rider-height range, stand-over height and geometry published on the page. Riders between sizes should also consider reach, inside-leg measurement and whether they prefer a more upright or extended position.

BikeDeliveryRideCyrusher flexPowerQualityTorque sensorExperienceMotorFlex bike
  • 5 stars: 29 (97%)
  • 4 stars: 1 (3%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
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Rab (Livingston, United Kingdom)
The bike looks amazing and rides great really

The bike looks amazing and rides great really like the brake lights everything works perfectly the only issue is the back brake is on the right side and on other bikes it on the left side which takes a while to get used to apart from that it’s a perfect bike

K
Kevin D. (Alton, United Kingdom)
Cyrusher Flex

The ordering to delivery was quick
The bike was well packed and easy assemble
The only thing I changed was the seat post as I’m over 6 feet. The power settings are well spaced with powerful brakes and smooth gear changes makes it an enjoyable ride and added a few items to suit my riding style

S
Stephen h. (Wednesbury, United Kingdom)
Cyrusher flex

First of all I'll put cons, seat post little bit short.also front wheel axle was too tight and not enough grease. Pros are a very smooth ride ,nice power assist and generally a very fun bike to ride.done only 120 miles so time will tell.great delivery time and communication from cyrusher 😃

A
Anonymous (Birmingham, United Kingdom)
Great choice

I’m really impressed with my Cyrusher Flex so far. From the moment I started riding it, I was surprised by how comfortable and smooth it feels. The riding position is very comfortable, and even on longer rides, I don’t feel as tired as I expected. The bike also feels solid and well-built while still being enjoyable and easy to ride.

The design is another big plus. It looks modern, stylish, and sporty, and I’ve received plenty of positive comments about its appearance. It definitely stands out compared with many other e-bikes, and it looks just as good in person as it does in the pictures.

I was especially curious to see how the battery would perform. The advertised range is up to 59 miles, and on my very first full charge I managed to get approximately 43 miles. I was alternating between the torque sensor and cadence sensor, so I think that’s a very respectable result for real-world riding. Of course, actual range will vary depending on riding conditions, assistance level, terrain, weight, and how the bike is used, but getting 43 miles on the first charge has given me a lot of confidence in the battery.

Overall, I’m very happy with the Cyrusher Flex. It’s comfortable, great-looking, smooth to ride, and has impressive battery range. For my first experience with it, I’m very pleased with the performance and would definitely recommend it to anyone looking for a stylish and comfortable e-bike for both everyday riding and longer trips.

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MRS S.B. (Stockport, United Kingdom)
Love it

Love it. Out riding every day.

A
Alan H. (Torquay, United Kingdom)
Highly recommended

I've had this bike for a month and I'm really impressed with it. The delivery was excellent. It goes up steep hills with ease. The battery lasts a long time. I highly recommend it.

K
Kevin D. (Alton, United Kingdom)
Cyrusher Flex

Great experience from ordering to fast delivery
The fit and finish of the Flex is first class
For me I needed to swop the position of the brake as mine came with left hand front brake
The only thing I could pick a minor fault is the hand book for type pressures, adjustment and maintenance
Well done Cyrusher first class

D
Dave F. (Leicester, United Kingdom)
Green Flex

My first E-bike. And I'm loving it quality is really good. Only one minor negative is the Seat doesn't go high enough. So I've ordered a longer seat post.

A
Anonymous (Lydney, United Kingdom)
White Flex Ebike

Had e-bike delivered fast easy to assemble excellent quality very comfortable ride goes up steep hills with ease I would recommend this flex bike to anyone that’s looking for a quality ebike costumers services very help

C
Colin M.
Pleasantly surprised 😁

Had read the reviews and expected a half decent bike, what I got was way better than expected and loving it so far.

M
Michael D. (City of London, United Kingdom)
Flex blue UK

I recently received my Cyrusher Flex Blue UK version and I’m genuinely impressed from start to finish. The delivery was incredibly fast and the bike arrived well packaged with everything protected properly.
Customer service was also excellent throughout the process. Any questions I had were answered quickly and professionally which made the whole experience even better.
The unboxing and first time setup was much easier than expected. The instructions were simple, clear, and very easy to understand, even for someone who isn’t experienced with building bikes. Most of the bike was already assembled, so it only took a short amount of time to get everything ready and checked over.
Once fully set up, the bike looked absolutely amazing. The blue colour really stands out and gives it a premium feel. The build quality feels solid, comfortable, and high end straight away. Riding it for the first time was smooth and enjoyable, and you can instantly tell it’s a well made bike.
Overall, I’m extremely happy with my Cyrusher Flex Blue UK version. Fast delivery, great customer service, easy setup, and an amazing looking bike I would definitely recommend it to anyone considering buying one.

R
Rob J. (Rochford, United Kingdom)
Cyrusher Flex - First Impressions

I'm loving this bike! First emtb and not disappointed! Look and goes great. On the roads and on the inclines around here, no problem maintaining 15.5mph in torque setting on assist level 2. Well impressed! On the steeper inclines still no problem up the the assist levels. End of the ride, cadence mode lovely to cruise back. Great off road too and a good looking bike for sure!

C
Chris G. (Dartmouth, United Kingdom)
Flex & Sprint

Ordered the bikes on Black Friday deal for my wife & myself, bit of a delay in delivery & poor communication from delivery co, Cyrusher were then very communicative & offered to send out some accessories free of charge.
Very easy to assemble both bikes & have had them a couple of weeks now & thoroughly enjoying them. Have done a couple of 30mile rides & the batteries are only using one bar segment with mainly power level 3 & occasionally level 5. I live in a very hilly area so am very impressed so far. The full suspension works really well & makes for a more comfortable ride.
At 192cm I initially felt the bike was a bit small however i have since added a longer seat post & handle bar stem & it is now just right. Cyrusher even offered to reimburse 50% of the add ons that i purchased.
There aftersales & communication have more than made up for the initial hiccup, well done Cyrusher.
I would definitely recommend these bikes for there price bracket 😁

M
Matthew (Bridport, United Kingdom)
Good bike

I've only had the bike a few days the set up out of the box was really easy and simple the bike itself is really comfortable to ride even over rougher terrain have both pedal assists is very handy the motor is powerful enough to get me up the hills with no issues and even without power on i was still able to ride easily overall its a really good and fun bike and would recommend it for new or existing riders

V
Vivian R. (Slough, United Kingdom)

a perfect bike!

D
Dale (Sheffield, United Kingdom)
Great bike

I bought my cyrusher flex because its rare to find a "normal" Looking ebike that has a torque sensor with normal looking wheels and also has plenty of power but still rated at UK Street legal. On arrival the build quality is great and I love the torque sensor where I can still get a workout.

c
caroline (Borehamwood, United Kingdom)
Great Bike

Had this bike a couple of weeks now and I'm really impressed. Well made bike, I feel safe riding it. All parts work and are not loose when bike was delivered. Was easy to put together. The built-in break lights are a great feature 👌.

G
Glenn (New York, United States)
Fantastic EMTB

Powerful MTB, super comfy with the suspension too. Only had it a week but I've taken it all over South Wales, gravel, mud and road.

I'm a big and tall dude, but it holds me fine and I've zoomed up some pretty steep inclines!

Recommend highly.

r
richard l. (Gloucester, United Kingdom)
Excellent paintwork and quality is really good

Excellent paintwork and quality is really good.
Impressive with the pedal assist.
Quality seat and very comfortable.
Lights are high quality.
Highly recommend.

D
Darren P. (Hemel Hempstead, United Kingdom)
Great bike and amazing power for such a low

Great bike and amazing power for such a low price

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Nicholas J.W. (Liverpool, United Kingdom)
Great e-bike

Bought cyrusher flex for grandson he is delighted with it to be honest we never see him he is always on it my son had a go and is very impressed as all his friends are never met anyone who does not love it one minor quibble laid bike on floor to open gate and front light broke off forgot it had a kickstand but heyho accidents happen still a 5 star bike nonetheless thanks

A
Anonymous (Stockport, United Kingdom)
Amazing

Amazing.