Long Range Battery
High-capacity 238–698Wh cells
Lightweight
Barely know it's there
Plug & Ride
Colour-coded connectors, zero faff
Weatherproof
Sealed tight. Ride in anything.
What's Inside Your Kit
Every part engineered to convert your bike into something faster, smarter, and a hell of a lot more fun. Here's what you're bolting on.
Silent Power. Planetary Precision.
Precision-wound. Hardened gears. Sealed bearings rated for thousands of miles. Our 250W brushless hub runs silent, takes a beating, and never asks for maintenance. Arrives pre-laced into a wheel — just swap it onto your bike.
Hidden Power. Rack-Mounted.
Lockable rear rack, click on, click off. Charges in 4 hours, up to 35 miles per charge. The pannier rack? Included free. Your commute just got a serious upgrade.
Range For Days. Frame-Integrated.
Flush-mounted to your downtube. Low centre of gravity for a lighter, more natural ride feel. Up to 65 miles of range. Nobody needs to know your bike has a secret — until you blow past them on the climb.
Under
The Skin.
Pre-laced into your chosen wheel. Silent. Maintenance-free. No oil changes. No service intervals. Just torque.
UK & EU road legal. The motor will take you there — the law decides the ceiling.
One kit. Four wheel sizes. While 700c, 28" and 29er are considered different sizes, they all use the same rim. Hence bundling them together.
Reinforced spokes rated for the extra load a motor brings. Stronger than the stock wheel you're replacing.
Sealed connectors for weatherproofing. Every connector is labelled and keyed so they only plug in one way. No sparks, no guesswork, no electrician.
Reads your pedal movement and fires the motor in real time. Smooth, natural, and completely invisible to anyone who doesn't know it's there.
Handlebar-mounted cockpit. Dial in PAS levels 1–3. Reads speed and battery status. Backlit for dawn starts and late finishes.
The brain of the build. Compact, weatherproof, and tucked out of sight. Handles everything that happens between your input and the motor.
Clean, secure mounting for the controller. Rack battery customers get it built into the battery housing — nothing extra needed.
Works with both. No adapter needed. No bike left behind.
Everything Listed. Nothing Hidden.
Every single item above is included in every kit we ship — regardless of which drive type or wheel size you choose. There's no base model that needs upgrading. The only thing you add is your battery, picked during checkout. Want to go full throttle? That's optional — and worth it.
The Throttle Upgrade.
Thumb-type lever — gradual, intuitive, addictive. Press it gently for a nudge. Push it further for serious acceleration. No pedalling required. A solid backup if the PAS sensor won't fit your chainset, and honestly? Just more fun. This is how you get grins.
SAME BIKE.DIFFERENT ANIMAL.
ONE KIT. TOTAL TRANSFORMATION.
Will It Fit My Bike?
Forget make and model lookups — nobody memorises that stuff. Grab a ruler, check three things, and you'll know in two minutes flat.
Fork Dropout Spacing
Flip your bike upside down (or just eyeball the front fork). See those two slots at the bottom where your wheel axle sits? That's the dropout spacing. Yours needs to be 100mm — which is the standard on the vast majority of front forks out there.
How to measure: remove your front wheel, hold a ruler across the inside edges of both fork dropouts. If it reads 100mm (or very close), you're good to go.
Dropout Opening Width
Now look at the dropout slot itself — the opening where the axle slides in. Our motor axle is 10mm. Most front dropouts are already 10mm, so chances are you're sorted.
Not sure if your forks are steel? Stick a magnet to them. If it sticks, they're steel — file away. If it doesn't (aluminium or carbon), don't file. Talk to a bike shop instead.
Pedal Assist Sensor (PAS)
This is the clever bit. The PAS sensor clips around your bottom bracket — the spindle that your pedal cranks attach to. It reads how fast you're pedalling and tells the motor to kick in. Smooth, natural, borderline addictive.
What You Need: Square Taper Bottom Bracket
The PAS ring slides onto the spindle and sits behind the left crank arm. You need a square taper BB with enough spindle poking out (5mm minimum) for the sensor ring to sit. This is the most common BB type on non-premium bikes — you've probably already got one.
Square Taper BB
FitsExposed square spindle, crank arms bolt on. This is the one. Dead simple, dead common, dead compatible.
Hollowtech / Press-Fit BB
Won't FitIntegrated spindle, no exposed taper. Found on premium and modern groupsets. The PAS ring won't fit as-is. See options below.
Wrong bottom bracket? You've still got options.
Option A: Skip the PAS entirely and ride with a Throttle instead. Thumb-press and go — no pedalling needed. You can add one to your kit from the configurator above. Some riders actually prefer it.
Option B: Any bike shop can swap a Hollowtech or press-fit BB for a square taper unit if you absolutely want to use PAS. It's a standard job.
How do we compare?
Same category. Different league.
Here's how we stack up against the competition.
★★★★☆★★★☆☆★★★☆☆Prices and specs sourced from public websites as of March 2026. Subject to change.
Don't Take Our Word For It.
Real riders. Real builds. Real talk.
We've Got
Answers.
The 250W kits are capped at 15.5mph — the UK/EU road legal limit. If you'd like to go faster off-road, check out our 1000W rear drive kit. Your ride, your rules.
Depends on battery size, your weight, terrain, and assist level. On the lowest PAS setting, the 698Wh battery has achieved over 100 miles between charges (yes, really — see our reviews). On level 2–3 expect around 60 miles.
Up to 1,000 full charge cycles with proper care. Charge it regularly, don't leave it fully discharged for long periods, and store it somewhere dry. Treat it right and it'll last years.
Yes. All rack and frame batteries are fully removable. Unclip it, take it indoors, plug it in. No need to drag your bike to the socket.
Yes — our kits are compatible with both disc brakes and V-brakes. Whatever your current setup, you're covered.
Yes. Fitted correctly, the whole system is water resistant. Ride in any weather. Just don't blast it with a pressure washer.
Yes. The motor is a freewheel design and can coast with no noticeable friction, perfect if you want to continue using the bike unpowered. Useful when the battery runs out mid-commute.
12 months from date of delivery for the original owner. Motor, controller, display, battery — all covered.
30-day returns. Send it back in original condition and we'll refund you in full. No drama. Return shipping is at your cost.
Yes — all Cyclotricity kits are available through the Cycle to Work Scheme, meaning you can save up to 40% through your employer with pre-tax salary sacrifice. It's one of the most cost-effective ways to buy. See the providers we have partnered with below.
YOUR BOSS PAYS.
YOU RIDE.
Slash up to 40% off any Cyclotricity kit or e-bike through your employer's Cycle to Work scheme. Zero upfront cost. Paid tax-free from your salary before you even notice it's gone. Grab your voucher, fire it over to us, and we'll sort the rest. Simple as that.
Send Us Your Voucher