SpeedFun Furious eBike Tuning Kit for Bosch Rim Magnet Performance Line CX - Gen4

This SpeedFun Furious is a tuning kit for eBikes powered by a Bosch Performance Line CX (Gen4) motor + Rim Magnet Sensor. It also works with Race edition Gen4 motors. Once fitted, it will remove the factory 15mph or 20mph speed limit. Derestricting the bike fully. Speedfun works with eBikes fitted with or without a display. It's fully tested on the latest 17.16 Bosch drive unit update and comes with a 1-year warranty. Installation Info (Read Before You Buy) This tuning kit requires a moderate to advanced installation. Download Instructions here (PDF). It comes with three key components: • Tuning module • Replacement speed sensor • Electromagnet unit For some bikes, the motor may need to be lowered to install the electromagnet. The factory speed sensor is removed and replaced with a wired sensor, which is mounted to the chainstay. If you’re not comfortable working on your eBike’s motor, we highly recommend having it installed by a professional bike technician. Important: After purchase, we’ll reach out by email to confirm compatibility with your specific setup before dispatching your order. ⚠️ For off-road use only. Not legal on public roads. Read full legal disclaimer.