Skarper, a British start-up, has launched a revolutionary e-bike conversion kit that drives your bike with a specially designed disc brake rotor. Because changing a wheel, wires, batteries, and fittings is time consuming, most electric bicycle conversion kits are not easy to disassemble. Sharper is trying to change this with its latest innovation.
The new Sharper e-bike conversion kit streamlines the time-consuming conversion process by incorporating everything into one, compact device with a patent-protected mechanism for driving the rear wheel of your bike. The electric bike conversion kit is included in a one-piece drive and battery assembly. The device attaches to your non-drive side chainstay through specially designed tabs. The motor then drives a custom rotor, known as the DiskDrive.
The DiskDrive is meant to replace your rear rotor while also moving the bike forward. The package weighs about 3 pounds, and installing and removing the disc is as simple as changing your rotors. The Sharper rotor is a brake and a drive in one, with a range of up to 37.5 miles (depending on how you drive and how much you rely on electrical assistance). Even better, the company promises a 2.5-hour full charging time. A cadence sensor is attached to the cranks on Skarper’s system, just like other e-bike conversion kits, to adjust the power output.
Skarper claims to have more than a dozen engineers and designers employed by its London headquarters. Dr. Alastair Darwood, the inventor, is responsible for development. Dr. Darwood has already made several advances as a result of its medical expertise. These include orthopedic and anesthetic medical devices made while working for England’s National Health Service (NHS).
Darwood’s unique electric bicycle conversion kit is supported by a group of cyclists who have all invested financially in the company. Skarper keeps the details under wraps, but in addition to the road / city model seen above, the company has been working on an off-road version with Red Bull Advanced Technologies. This unit, according to Skarper, in an article published by BikeRadar, delivers “enormous amounts of power and a lot of torque. It means you can clip the system to carry you to the top of the mountain, unhook it and hook it into set up your suit and then you are free to walk the trails on you / without the added weight and cost of an e-mountain bike “.