The Cheapest Way to Get an Electric Bike in the UK

Buying an electric bike does not always mean spending thousands of pounds on a brand-new model. If you already own a suitable bicycle, converting it into an e-bike can be a more affordable way to enjoy electric assistance for commuting, leisure rides and everyday journeys.

The best option depends on your budget, how far you plan to ride, and whether you already have a bicycle you can use. Options include electric bike conversion kits, Cycle to Work schemes, second-hand e-bikes and entry-level new models. Each comes with different costs, benefits and considerations.

For riders who want to keep their existing bicycle, an electric bike conversion kit is worth considering. Cyclotricity offers conversion kits starting at £150, with compatible batteries available separately from £199. This makes conversion an option worth exploring before committing to a complete new electric bike.

1. Convert Your Existing Bike with an Electric Bike Conversion Kit

If you already own a bicycle in excellent mechanical condition, converting it to electric power may be one of the most cost-effective ways to get started. Instead of buying an entirely new bike, you can add an electric motor, pedal-assist sensor, controller and display to a suitable existing bicycle.

The final cost depends on the conversion kit and battery you choose. You should also check whether you need any additional accessories or professional installation.

Cyclotricity offers three main conversion kit options:

Conversion kit	Starting price	Best suited for
Front Drive 250W Kit	£150	Everyday riding and commuting
Mid-Drive 250W Kit	£250	Riders who want natural assistance and hill-climbing support
Rear Drive 1000W Kit	£180	Off-road riding only, where permitted

Prices are based on Cyclotricity's published product listings and may change. The front-drive 250W kit is a practical starting point for many everyday cyclists because of its entry-level price and straightforward installation. The mid-drive kit may be more suitable for hilly routes, as its motor works through the bicycle's gears.

Remember that the battery is an additional cost. If you want a complete setup, you can choose an electric bike conversion kit with battery and select a compatible battery on the product page. Cyclotricity lists compatible batteries from £199, so a front-drive conversion with a new battery starts at approximately £349 before any additional costs. Your total will depend on your selected battery and configuration.

If you are not sure whether a mid-drive or hub motor suits you? Read our guide to the benefits of a mid-drive motor compared to a hub motor.

2. Choose the Right Battery for Your Budget and Riding Range

The battery is an important part of your total conversion cost. A lower-priced kit may be suitable for shorter journeys, but you should consider your daily distance before deciding which battery to buy.

Cyclotricity offers battery options for its compatible kits, including 36V batteries with capacities of up to 698Wh for selected 250W configurations. The company advertises a range of up to approximately 65 miles with its selected 698Wh battery configuration under suitable riding conditions.

However, your actual range can vary depending on several factors:

• Battery capacity and condition
• Rider weight and any additional luggage
• Terrain, including hills and uneven surfaces
• Selected pedal-assist level
• Tyre pressure, weather and riding style

A larger battery generally costs more and can add weight to your bicycle. If you mainly travel short distances around town, you may not need the largest available option. For longer commutes, frequent hill climbs or extended leisure rides, investing in a higher-capacity battery may be worthwhile.

Before purchasing, check the battery voltage and compatibility requirements for your chosen kit. Cyclotricity's 250W front- and mid-drive kits use compatible 36V batteries, while its 1000W rear-drive configuration uses a 48V battery. You can compare compatible batteries and accessories in our parts section, or browse the full electric bike conversion kit range.

3. Consider the Cycle to Work Scheme

If you are employed in the UK, a Cycle to Work electric bike purchase may help reduce the cost through a salary-sacrifice arrangement, subject to your employer’s scheme and eligibility requirements.

Cyclotricity states that it accepts vouchers through Caboodle, Cycle2Work and Bike2Work. Its website advertises savings of up to 40% on eligible purchases. Your actual savings will depend on your circumstances and the terms of the scheme.

Before ordering, check the following:

• Whether your employer participates in a supported scheme.
• Whether your selected conversion kit and battery are eligible.
• The voucher amount available to you.
• The total cost and the scheme's payment and ownership arrangements.

Do not assume that the maximum advertised saving will apply to every purchase. Confirm the details with your employer or scheme provider before placing an order.

4. Is a Second-Hand Electric Bike a Cheaper Option?

Buying a used electric bike may be a good alternative if you do not already own a suitable bicycle or would prefer a complete e-bike rather than installing a conversion kit yourself.

Second-hand prices vary considerably depending on the brand, model, age, battery condition and overall mechanical condition. A low advertised price does not necessarily mean the bike represents good value, particularly if the battery needs replacing or the bicycle requires repairs. Before buying a used electric bike, take time to inspect it carefully.

Check the Battery Condition

The battery is one of the most important components to assess. Ask the seller about its age, charging history, storage conditions and remaining range. If possible, request a battery health report or have it tested by a qualified bike shop.

Do not assume that every battery of a particular age will retain the same capacity. Battery performance depends on usage, charging habits, storage and other conditions.

Inspect the Frame, Motor and Display

Look for cracks, corrosion, damaged wiring and signs of previous repairs. Check that the display works correctly and that the motor provides consistent assistance during a test ride.

Pay attention to unusual noises, error messages and loose electrical connections. If the seller cannot demonstrate that the electrical system works properly, consider arranging an independent inspection before buying.

Verify Ownership and Bike Details

Ask for proof of purchase where available and check the frame number. You can use a bicycle registration service, such as BikeRegister, to help check its records. A used electric bike can offer good value, but only when its condition, battery performance and repair requirements justify the price.

5. Compare the Cost with a Brand-New Electric Bike

A new electric bike can be a better choice if you need a complete bicycle, prefer a factory-integrated electrical system or do not have a suitable existing bike to convert. However, compare the full specification rather than choosing solely on the advertised price. Consider the battery capacity, motor rating, warranty, availability of replacement parts, service support and the type of riding you plan to do.

A conversion kit may offer better value when you already own a reliable bicycle. A new e-bike may be more convenient when you want a complete setup without the work of fitting and checking a conversion system.

When comparing prices, include the cost of the battery, any necessary accessories and installation. This gives you a more realistic picture of the total cost rather than comparing a kit-only price with the price of a complete electric bike. For more on the pros and cons, read 5 reasons to choose an electric bike conversion kit instead of buying a new e-bike.

6. Are Electric Bike Subscriptions Worth It?

Some companies offer electric bikes through monthly subscription plans. These can provide access to an e-bike without paying the entire purchase price upfront. However, subscription costs can add up over time. Before choosing this option, check the current monthly fee, minimum commitment, maintenance arrangements, insurance or theft cover, deposit requirements and cancellation terms.

For example, compare the total cost of a 12-month subscription with the cost of buying a conversion kit and a compatible battery. Remember that these options are not directly equivalent: a conversion kit requires a suitable bicycle, while a subscription may provide a complete electric bike and additional services.

A subscription may suit someone who wants flexibility or is unsure about long-term ownership. Buying a kit may offer better long-term value for someone who already owns a suitable bicycle and intends to use it regularly. Always check the latest prices and terms directly with the subscription provider before making a decision.

7. Check Whether Any Local E-Bike Grants Are Available

Some people may be eligible for cycling support through a local authority, employer or other specific programme. However, funding availability changes, and you should not assume that a grant is currently open.

For example, the Scottish eBike Grant Fund previously supported eligible projects, but the programme has closed. Its previous funding should not be treated as money currently available to individual buyers.

If you are looking for financial assistance, check your local council's website and ask your employer whether any cycling benefits or purchase schemes are available. Read the eligibility rules and application deadlines carefully before including a potential grant in your budget. If no suitable funding is available, compare the total costs of a conversion kit, a second-hand e-bike and a new model to identify the most practical option for your needs.

8. Make Sure Your Converted E-Bike Meets UK Legal Requirements

Cost is important, but legal compliance should also be part of your buying decision. In Great Britain, an electrically assisted pedal cycle (EAPC) must meet the applicable requirements to be treated like a conventional pedal cycle. The key conditions include:

• The bicycle must have pedals that can propel it.
• The motor's maximum continuous rated power must not exceed 250W.
• The motor must stop providing assistance when the bike reaches 15.5mph.
• The rider must be at least 14 years old.

An EAPC that meets the relevant requirements does not need a driving licence, vehicle registration, vehicle tax or motor insurance. Cyclotricity's 250W front- and mid-drive kits are designed for use within the standard power limit. Its 1000W rear-drive kit exceeds the EAPC power limit and should not be treated as a road-legal EAPC. A bicycle outside the applicable rules may be classified as a motor vehicle and subject to additional legal requirements.

Check the official GOV.UK electric bike rules before buying or modifying a bicycle. Make sure your complete setup, including its motor and any modifications, complies with the rules for where you intend to ride.

9. How Much Does It Cost to Install an Electric Bike Conversion Kit?

The installation cost depends on whether you fit the kit yourself or pay a bicycle mechanic to do the work. Our installation guides and user manuals walk you through each step. If you’d like to know what each part does, read our guide to the key components in a standard conversion kit.

Cyclotricity states that fitting a kit can take around two hours for many riders with basic tools, although the time required varies with the kit, bicycle and the rider's experience. A first-time installation may take longer.

Before starting, check that your bicycle is mechanically sound and compatible with the selected kit. Wheel size, frame and fork dimensions, brakes, drivetrain and bottom bracket specifications can all affect compatibility. A typical installation involves fitting the motorised wheel or mid-drive motor, mounting the battery and display, installing the pedal-assist sensor, and connecting the electrical components according to the instructions.

If you are not confident working on bicycle components or electrical connections, consider using a qualified bike mechanic. Confirm the installation cost in advance so you can include it in your overall budget.

10. Why Choose Cyclotricity for an Electric Bike Conversion Kit?

For riders who already own a suitable bicycle, Cyclotricity offers several conversion options at different price points. The company was established in 2010 and is based in Scotland, giving UK customers a local point of contact for product information and support.

Reasons to consider Cyclotricity include:

• Kits starting at £150: A front-drive 250W conversion kit provides an entry-level option for riders on a budget.
• Different drive systems: Front-drive, mid-drive and rear-drive configurations let you compare options for your riding needs.
• Battery choices: Compatible batteries are available separately, with selected 250W configurations offering capacities up to 698Wh.
• Installation guidance: Product FAQs and fitting information help customers understand compatibility and installation requirements.
• Cycle to Work support: Cyclotricity lists Caboodle, Cycle2Work and Bike2Work among its supported schemes.
• UK-based business: The company is based in Kirkcaldy, Scotland.

The most suitable kit will depend on your bicycle, intended use and budget. Check compatibility and the complete price, including your selected battery, before ordering.

Final Thoughts

The cheapest way to get an electric bike depends on what you already own and how you plan to ride. If your current bicycle is suitable for conversion, an electric bike conversion kit can help you avoid the cost of buying a complete new model.

Cyclotricity offers conversion kits starting at £150, with compatible batteries from £199. Before making a decision, compare the total cost, battery range, bicycle compatibility and installation requirements. You should also check whether a Cycle to Work scheme could reduce your eligible purchase cost.

For riders who want to keep their existing bicycle, comparing the available Cyclotricity electric bike conversion kits is a useful first step towards finding a practical and budget-conscious option.