The kit adds around 7lbs / 3.2kg to a Brompton – unassisted Brompton bikes start at around 24lbs / 11kg (for the more expensive titanium Superlight versions) so at little over 31lbs / 14kg this combination has to be one of the lightest and best folders out there. At nearly 40lbs / 18kg Brompton’s own electric version is a little on the heavy side – EBR’s own favourite is the retrofit Cytronex Brompton kitwhich we reviewed here. Undoubtedly at the head of the pack in terms of quick compact fold is the Brompton. This Brompton is fitted with a high quality Cytronex motor kit Of course, a powerful motor and a biggish battery come with a weight penalty, so Tern folders are only really light in the sense they will do all things that many larger non-folding bikes will do – and more, including attaching a child seat. If it’s a powerful efficient motor and good sized battery you are after Tern’s Vektron range are best-in-class Bosch-powered folders. If it’s simply light weight that’s needed the Hummingbird will be extremely difficult to beat but it has its limitations it’s not the smallest folded package, it’s has only a single gear and features a small 158Wh battery with a relatively inefficient direct drive motor. The headline grabbing world’s lightest e-folder with a corroborated weight that EBR is aware of is the Hummingbird Electric from the UK. ![]() After all, the idea of a folder is that it can be carried (though there ways around that for heavier folders, but we’ll come to that shortly). The Hummingbird Electric has a corroborated weight of 24lbs / 10.9kgįolding e-bikes are undoubtedly the design of e-bike where weight is most critical of all. ![]() If you should happen to run out of battery power a lightweight e-bike with a freewheeling motor (easy to pedal without power) could be a lifesaver and allow you to get home with calling for backup too. Here’s a video showing the technology that has gone into making the bike what EBR considers best-in-class: For an e-bike with a mid-drive motor, 10 derailleur gears, integrated headshock and a decent size battery that’s extremely impressive. The lightest pared-back version of the newly launched Specialized Turbo Vado SL have over 330Wh of battery which is a decent size and it also has a range extender system meaning you can plug extra batteries in – and it claims to weigh 33lbs / 14.9kg. That’s not to say a light e-bike needs to have a small battery (though most very light e-bikes do). Keeping the total weight carried as low as possible – both the bike weight and the human and cargo weight – will help both extend your battery range and its life as it will need charging less often and charging and recharging are one of the main causes of battery degradation. More Range, Longer Battery Life And Easier Cycling Without Power For example COBOC’s ONE eCycle F1has a claimed weight of 24lbs / 10.8kg. If you want to aim for much below 33lbs / 15kg a minimally equipped bike, perhaps even a single speed might be the only feasible option. Cargo Trailers for eBikes – The Complete Guide.Replacement Electric Bike Batteries Guide.Understanding the Differences Between Direct Drive & Geared Electric Bike Hub Motors.Why You Don’t Want a Superfast Electric Bicycle.A Guide to E-Bike Locks and Security Ratings.E-Bike Batteries: Volts, Amps, & Watt Hours Explained.Calculating Range on Electric Bikes: How To Find The Long-hauler For You.The Complete Guide to E-Bike Mid-Drive Motors.Electric Bike Modes: Throttle vs Pedal Assist (Pedelec).Best Car Racks For Electric Bikes – 2021.Best Electric Bikes For Heavier Riders 2023.
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