Ampere Alter Folding Low Step Electric Bike 250W

Ampere Alter — The Award-Winning Folding eBike That Goes Further

If you’re seeking freedom, convenience, and style, the Ampere Alter has it all. This low-step folding eBike is built for riders who are always on the go, with a fast and effortless folding mechanism that makes everyday travel simple — ideal for city journeys, weekend outings, or storing neatly in your car boot.

Power Meets Performance

Powered by a 50Nm motor and offering up to 60 miles of range, the Alter takes the strain out of hills, headwinds, and longer rides. The quick-release battery recharges swiftly, ensuring you're ready to roll whenever you need it.

Premium Components, Outstanding Comfort

Enjoy a smooth, confident ride thanks to Shimano gears, Zoom suspension forks, a clear LCD display, and sleek magnesium alloy wheels. Comfort, practicality, and modern styling come together to create an exceptional folding e-bike experience.

Why Choose Magnesium Alloy Wheels?

Magnesium alloy wheels provide a number of benefits for folding e-bikes. They are around 30% lighter than aluminium, improving acceleration, handling, and overall battery efficiency. Their excellent strength-to-weight ratio ensures durability for urban and light off-road riding. Advanced coatings offer strong corrosion resistance for reliable all-weather performance. The one-piece cast construction removes the need for spokes, reducing maintenance and maintaining perfect alignment, all while delivering a clean, modern aesthetic. Additionally, magnesium naturally absorbs vibrations, giving you a smoother and more comfortable ride across uneven terrain.

Drivetrain & Gearing

• Shifters: Shimano 7-speed shifter
• Rear Derailleur: Shimano M360 7-speed
• Chainset: Alloy 48T with 170mm alloy crank arm
• Bottom Bracket: Neco B910 sealed cartridge
• Freewheel: Shimano 7-speed
• Chain: KMC 7-speed Anti-Rust

Wheels & Tyres

• Rims: 20″ magnesium alloy wheels
• Tyres: Inovva 20″ puncture-resistant tyres

Motor & Battery

• Motor: 250W 36V brushless motor
• Torque: Up to 50Nm
• Battery Options: 10Ah or 15Ah 36V lithium-ion
• Battery Management: Integrated Smart BMS
• Charger: 2A smart charger

Controls & Features

• Display: LCD with USB port
• Walk Assist: 4mph
• Range: Up to 60 miles

Frame & Handling

• Frame: 6061 lightweight aluminium
• Frame Size: 13″ folding frame
• Weight: Approx. 23kg
• Fork: Zoom suspension alloy fork
• Handlebar: 620mm alloy
• Stem: Folding adjustable alloy stem
• Headset: Alloy folding type

Comfort & Contact Points

• Seatpost: Alloy black
• Saddle: Comfort saddle
• Grips: Velo all-weather grips

Braking & Safety

• Brakes: Disc brakes
• Rotors: 160mm front & 160mm rear
• Lights: Integrated front & rear lights

Accessories & Practical Features

• Kickstand: Alloy
• Pannier Rack: Alloy
• Mudguards: Acrylic shatterproof with stainless-steel stays

Ampere electric bikes typically arrive in 2-4 working days of your order date.

As standard, they arrive 85% assembled. For this delivery option, you'll just need to fit the front wheel, handlebars, pedals, seat and battery. Customer feedback confirms that the bike is easy to assemble.

If you would like us to build the bike in the workshop for you, please add the following item to your basket below:

https://www.bikeyardonline.co.uk/products/ampere-bike-build-service

The Ampere Alter Folding Low Step is suitable for riders 4ft11 – 6ft2

Every Ampere e-bike comes with a 2-year warranty as standard — covering key electrical parts like the battery, motor, and display, as well as core mechanical components.

And even beyond the warranty, you’ll have lifelong access to an expert UK-based support team whenever you need a hand.

Built for performance. Backed for life.

We’ve got you covered with a range of payment options. Take a look at the options below:

Buyline Finance - 0% APR Over Up To 11 Months

With Buyline Finance, you can spread the cost of your new wheels across up to 11 monthly payments with 0% APR. Simply choose between 6, 9, 10, or 11 month payment plans and select the deposit you wish to pay (between 0-50%).

For further information, check out our dedicated finance page here.

To order with Buyline 0% finance, please get in touch with the information on our dedicated page (not through checkout on our website).

Other Ways To Pay

We accept all major credit/debit cards, PayPal, Klarna, and even bank transfer.

PayPal

Paying with PayPal is simple, quick, and secure. Just select PayPal at checkout to order. We receive instant payment confirmation, allowing us to process your order without delay.

Klarna

Klarna’s "Pay Later" lets you receive your order upfront and pay within a set period (usually between 2 weeks and 2 months) with no interest or fees. In their app, you can pay early or extend the due date if needed.

Klarna also offers "Pay in 3" which splits the total into three equal interest-free instalments.

Bank Transfer

Want a further discount on your purchase? Save an additional 2% on all orders when you pay by bank transfer. Just let us know which model you're after, and we will send you an invoice with the discount already applied.

The UK Cycle to Work Scheme is a government initiative (salary sacrifice) aimed at promoting healthier lifestyles and reducing environmental impact.

It allows employees to save money and commute with a new bike and accessories, spreading the cost over tax-free monthly instalments through your employer, potentially saving you up to 47% of the cost. It's a brilliant way to get an e-bike without breaking the bank!

To find out more or to ask any questions, check out our dedicated page here.

To order through a cycle to work scheme, please get in touch with the information on our Cycle to Work scheme page (not through checkout on our website).