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HPS launches the lightest, sleekest ebike this side of the future

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HPS launches the lightest, sleekest ebike this aspect of the longer term

Normally an ebike lets you understand it is an ebike the moment you see it from afar – parts like a big hub motor or swollen backside bracket give it away instantly. However attempt figuring out the brand new Domestique from Monaco-based firm HPS as an ebike, and you will have a tougher time … even after you already know it is an ebike. The smooth highway/race bike depends on an extra-small, light-weight drive system hidden away within the tubes and backside bracket. The bike affords pedal help as much as 15.5 mph (25 km/h) whereas amazingly weighing in effectively below 20 lb (9 kg).

HPS’ Watt Help Professional drive system serves as the muse of the Domestique’s mild construct and low profile. Developed along side F1 engineer Gary Anderson, the system features a 200-W motor hidden within the seat tube, management electronics within the down tube and different system parts housed neatly within the slim backside bracket. It is fairly a departure from the beefy mid-motor methods we’re used to seeing on ebikes however nonetheless affords the advantage of low middle of gravity.

As a substitute of going the extra fashionable route in integrating the battery into the down tube, HPS goes old skool with a water bottle-style battery. It hung out sculpting its 193-Wh battery to imitate the appear and feel of an precise water-filled bottle in order that even probably the most conspicuous part of the e-drive system would not really feel heavy or cumbersome. The bottle battery mounts to the body on a customized holder developed in cooperation with Italian water bottle cage maker Elite.

HPS integrates e-drive system and supporting components into the lower tubes and the bottom bracket, creating packaging much sleeker than the larger, more powerful mid-motor systems we usually see on ebikes

HPS integrates e-drive system and supporting parts into the decrease tubes and the underside bracket, creating packaging a lot sleeker than the bigger, extra highly effective mid-motor methods we often see on ebikes

HPS depends on a hand-built carbon fiber body to maintain whole bike weight low, attaining a claimed weight as little as 18.7 lb (8.5 kg), with the battery on board and prepared for e-assistance. In a world wherein any ebike producer that manages to interrupt 30 lbs begins rolling out the “lightest ebike ever” promoting, that is an extremely low weight, particularly for a bicycle that appears like a bicycle.

HPS claims that the Domestique is the lightest ebike available on the market, which gels with the truth that the Guinness World Document-holding 15.2-lb (6.9 kg) Freicycle was constructed as a one-off prototype, a mashup of a Merida bicycle and exterior e-drive. The Domestique handily beats different bikes, together with the lately launched 26-lb (11.8 kg) LeMond Prolog, the 26.2-lb (11.9 kg) $16,500 Specialized S-Works ebike, the little 23-lb (10.4 kg) Prodrive Hummingbird folder, and the 21.6-lb (9.8 kg) BestiaNera Sport monocoque observe bike. It is also lighter than some highway bikes with out battery energy.

From this angle, the battery is the only thing that could give the Domestique away as an ebike ... and that just looks like a water bottle
From this angle, the battery is the one factor that would give the Domestique away as an ebike … and that simply appears to be like like a water bottle


Out on the highway, the Domestique motor delivers pedal help as much as a most pace, set at 15.5 mph (25 km/h) in Europe and adjusted for different markets in response to native ebike pace restrict legal guidelines. Riders can management output by means of two modes, every powering by means of numerous ranges of progressive help. HPS guarantees a gradual section out of motor help when approaching prime pace so energy would not merely drop off precipitously.

In response to HPS, the 193-Wh battery delivers between one and three hours of help, relying upon setting and utilization. Charging takes about two hours. HPS additionally affords an optionally available 85-kWh battery that’s authorized on business airways and has a 1.5-hour runtime and one-hour cost time.

HPS designed its water bottle-style battery to look and feel like an actual water bottle
HPS designed its water bottle-style battery to feel and appear like an precise water bottle


A bonus of a lightweight, smooth electrical bike just like the Domestique is that it will be a lot simpler to journey with out pedal help, whether or not using residence with a useless battery or pulling the battery off and going with out help for the total journey. With out the battery, the bike’s weight drops by 1.2 kg (2.6 lb), whereas the freewheel system decouples the motor transmission from the underside bracket, permitting the bike to pedal usually.

HPS will get the Domestique to market this month with a restricted version launch mannequin. It can construct 21 examples of the fittingly named Domestique 1-21 Launch Version. As traditional, the last word in weight-cutting design would not come with out its value — the Launch Version begins at €12,000 (approx. US$14,450). It features a Campagnolo Ekar IX13 group set and Pirelli P Zero tires. Lead time is roughly three months.

Supply: HPS


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