Bosch Centerlock Magnet for Slim Speed Sensor

The Bosch Centerlock magnet is a replacement for the Slim speed sensor on e-bikes with a Bosch motor. It is for riders with a Centerlock hub who want the speed to be read correctly.

• Mounts on the Centerlock hub and allows the Bosch Slim sensor to read the speed
• Compatible with BDU3XX and BDU4XX motors; check your system in the list
• The manufacturer guarantees correct operation only with the original Bosch magnet
• Covers Active Line, Cargo Line and Performance Line, including Smart System versions
• Before ordering, check that your hub is Centerlock and your sensor is the Slim

Technical specifications

• Brand: Bosch
• Manufacturer code / MPN: 1270.015.727
• Compatibility: Bosch Slim speed sensor (BDU3XX, BDU4XX)
• Mount: Centerlock
• Bosch systems: Active Line and Active Line Plus (2018-2023); Cargo Line (2020-2022 and 2022-2025 Smart System); Performance Line (2018-2023); Performance Line CX (2020-2022 and 2022-2025 Smart System); Performance Line CX Race (from 2023 Smart System); Performance Line Speed (2020-2022 and 2023-2025 Smart System)
• Intended use: Centerlock-mounted magnet for the Bosch Slim speed sensor; the manufacturer states that correct operation is guaranteed only with the original Bosch magnet

Founded in Germany in 2009 as a start-up within the Bosch Group, Bosch eBike Systems is now based in Kusterdingen. It develops motors, batteries and on-board computers to support e-bike riders. In 2010, it presented its first electric bicycle drive system at Eurobike.