Cytronex For Brompton
Cytronex transforms Brompton from a great solution for joined up transport, into the most convenient way to get from the start to the finish of your journey. Brompton’s compact size is perfect for taking inside at your destination, eliminating concerns about theft and carrying heavy locks. A Cytronex electric conversion kit for Brompton expands your horizons to go much further and faster, climb significant hills (see Brompton Hill Climb challenge) and arrive at your destination sweat-free.
Cytronex is the highest-rated electric assistance for Brompton, even outperforming Brompton’s own purpose-built e-bikes (see review links below). Its lighter weight is a significant advantage, and it seamlessly integrates without interfering with the fold or luggage mount. Like all Cytronex kits, our smooth and highly efficient power assistance enhances your ride without compromising the true cycling experience. Riding a Brompton with Cytronex is pure fun - why not book a test ride today and see for yourself?
Choose from 3 different fitting options:
FULL FIT: Choose the full fitting option for the neatest result - send your Brompton to us and we will fit water bottle mounts to your frame and fully install the Cytronex Brompton Kit.
SELF FIT 1: Kit contains Cytronex stainless steel Bottle Holder Mounts so you can fit to your Brompton easily without adding water bottle mounts to the frame.
SELF FIT 2: If you want your local bike shop to add water bottle mounts (so Bottle Holder can be fitted as shown above under FULL FIT) then choose this option and self-fit the kit, or ask your local bike shop to do this for you.


Cytronex electric bike conversion kit review: "Engineering done right"
Overall, there's very little not to like about the Cytronex ebike conversion kit.
It's a well-thought-out design with quality engineering. It's easy to use, comes at a fair price, and is backed by best-in-class customer support. What's more, all evidence from my time with the bike points to a system that is strong and durable enough to put up with the daily commute with ease.
The cost of electric bike conversion kits might be cheaper than buying a brand new electric bike, but they still cost a significant sum of money, so finding one that will stand the test of time is key, and I have no doubts that the Cytronex kit will do just that.


"The best lightweight e-folder out there"
The Cytronex for Brompton T Line has to be right up there on the list of the most exciting e-bikes we've tried here at ebiketips. It's the combination of two superbly thought-through products, both designed and largely manufactured in the UK.
The five levels of motor assist are set up in 20% intervals and even the lowest level will keep providing assistance right up to the 15.5mph cut out limit. This makes for a very efficient system that we coaxed 30-plus miles out of on a route that included 3,000ft of climbing. Many riders will switch the motor off on flatter sections, as it’s a doddle to do so with the big control button and, for an e-bike, it’s a nice and easy machine to pedal without power.
The only e-folder that beats the Brompton Cytronex T Line on weight that we have tested and verified is the 10.9kg Hummingbird Electric, but this has only a single gear and lacks the hill climbing ability and range of the T Line - not to mention its folding compactness.
So, the Brompton Cytronex T Line is clearly in an electric folding class all of its own, in terms of performance, lightness and portability.
Cytronex fits to every standard Brompton with the exception of the Brompton G-Line. We make each kit to order so if there is something unique about your Brompton such as fitting third-party forks or rear triangles to accept larger wheels, then please let us know before placing your order so that we can advise accordingly.
What are you waiting for? Click the button below to order your Cytronex kit today!