New e-bike conversion kit uses a bike’s rear disc brake

Revolutionizing the world of electric bicycle conversion kits, Skarper introduces an innovative solution that stands out from the crowd. Unlike conventional kits, the Skarper e-bike kit takes a unique approach, tapping into the bicycle’s disc brake system to power up the ride.

At the heart of the Skarper conversion kit is a sleek 4 kg (8.8 lb) clip-on mount, seamlessly integrating the motor, battery, and electronics. This compact unit attaches to the bike’s chainstay, utilizing the disc brake to drive the rear wheel. Unlike traditional kits that rely on complex modifications, the Skarper kit maintains the bike’s integrity, ensuring a hassle-free transition from pedal power to electric assistance.

The kit’s motor engages with the disc brake, utilizing a distinctive method that doesn’t interfere with the braking surface. Instead, it interfaces with a section of the disc closer to the hub, requiring the substitution of the bike’s disc rotor with the Skarper variant. However, this alteration doesn’t significantly impact the bike’s performance when the kit is detached, allowing riders to enjoy their traditional pedal bike experience.

To conform with European electric bicycle regulations, the Skarper kit offers a modest power output of 250W and a maximum assisted speed of 25 km/h (15.5 mph). Absent of a throttle, riders activate the motor by pedaling, receiving a subtle yet effective boost of assistance, particularly on inclines. Despite its restrained power, the kit boasts an impressive range of 30-50 km (18-31 miles), depending on the selected power level, with a recharge time of 2.5 hours.

While the £1,295 (approximately US $1,650) price tag may seem steep compared to other options on the market, Skarper is not like the others and as a result the units are already sold out. But pre-orders for delivery in early 2024 are forthcoming, so stay tuned.

For more information on six of the lightest e-bikes on the market, click here.