THIS NEW BROMPTON E-BIKE CONVERSION KIT IS TINY!

EV Channels Review

This video reviews the new Boost e-bike conversion kit specifically designed for Brompton bicycles. The reviewer highlights its key advantage: a significantly lighter and more compact design compared to the official Brompton electric offering, maintaining the bike's minimalistic ethos and folding capabilities. The kit features a 250W rear hub motor with 35-40 Nm of torque, compliant with EU/UK law, offering Eco, Boost, and a 10-second Super Boost mode for quick acceleration or inclines. The reviewer notes the kit adds only 2.5 kg and uses titanium bolts for weight saving. Real-world testing on an 8% gradient showed the kit could maintain a healthy 10 mph average, with Super Boost providing a noticeable, albeit brief, extra push. The claimed range of up to 30 km (18 miles) was not fully achieved in testing, with the reviewer managing 13 miles, primarily using Boost mode and Super Boost at traffic lights. This range is deemed sufficient for Brompton's intended use as a multimodal commuter or last-mile solution. A crucial consideration is that fitting the Boost kit will likely invalidate the Brompton's original warranty. The kit is currently crowdfunded, with pre-orders at £599 and an expected retail price of £999, with first deliveries anticipated for late 2023.