Keep the bike you love. Add electric assistance.
At Grand Tor Cycling, we supply and professionally install BOOST e-bike conversion kits for suitable bikes. It is the only conversion system we offer, because we believe specialising in one trusted system gives our customers the best balance of quality, consistency, safety, and support.
If you already own a bike that fits you well, a BOOST conversion can give it a new lease of life — helping with hills, headwinds, commuting, and longer rides without replacing the bike you already enjoy.
Book your BOOST conversion assessment
Why we only fit BOOST
There are many e-bike conversion kits available, but we only supply and install BOOST because it allows us to offer a cleaner, more controlled, and better-supported service.
Why BOOST works for our customers
- Lightweight conversion — adds around 4kg, rather than the bulk of many full e-bikes
- Discreet rear-wheel system — keeps the bike looking close to a traditional bicycle
- 250W rear-hub motor — designed for UK-legal pedal assistance when correctly fitted
- Custom-built rear wheel — matched to your bike where compatible
- Removable battery — neat and practical for everyday use
- Professional installation and local support — assessed, fitted, and supported by our team in Somerset
By focusing on one system, we can assess each bike properly, fit it correctly, and give you confident aftercare.
A conversion that keeps your bike feeling like your bike
BOOST is a strong choice if you want electric assistance without turning your bike into a heavy, bulky e-bike. It is designed to support your pedalling rather than replace it.
It could be right for you if you:
- love your current bike and want to keep riding it
- want more help on Somerset hills
- want to commute with less effort
- want to ride further or more often
- prefer a lighter, less obvious alternative to a full e-bike
- want a practical way to make cycling feel easier and more accessible
Is your bike suitable for a BOOST conversion?
Every conversion starts with an assessment. We look at the bike’s overall condition, frame design, rear dropout spacing, wheel size, braking, gearing, and intended use before recommending a conversion.
BOOST can be fitted to many adult bikes, but not every bike is suitable. We only proceed when we’re confident the bike is a safe and sensible candidate for conversion.
Arrange your e-bike conversion assessment
Why professional installation matters
An e-bike conversion is more than fitting a motor and battery. The bike has to be assessed, installed, and checked as a complete system.
That’s why it matters to work with a team who knows the product, understands bike fit and mechanics, and can support you after the install.
At Grand Tor Cycling, we take care of:
- compatibility assessment
- wheel and drivetrain setup
- secure battery and cable installation
- function and safety checks
- advice on charging, use, and aftercare
BOOST E-Bike Conversion FAQs
How much weight does a BOOST conversion add?
A typical BOOST conversion adds around 4kg, depending on the bike and final setup.
Can any bike be converted?
No. We first assess whether your bike is compatible, safe, and mechanically suitable.
Is a converted e-bike legal in the UK?
A compliant e-bike must meet UK requirements for pedal assistance, including motor power and speed limits. We’ll only recommend a conversion if the bike and system are suitable.
Why do you only install BOOST?
Because we believe in doing one system well. BOOST gives us the right balance of discreet styling, lightweight performance, and reliable local support.
How far can I ride on one charge?
That depends on factors such as terrain, rider weight, tyre pressure, weather, battery option, and how much assistance you use. We can talk through realistic expectations during your assessment.
Are Boost E-Bike Conversion kits any good?
Yes, they are a great way to help you ride further and climb hills with less strain, so that has to be good. We have put together a couple of links to some recent media reviews from bike radar and road cc. Please also visit the Boost website for their customer reviews too.
Thinking about converting your bike?
Bring it to Grand Tor Cycling in Shepton Mallet, Somerset for a professional BOOST e-bike conversion assessment.
Book your BOOST conversion assessment
Contact Grand Tor Cycling