The SHIMANO SM-EWSS2 speed sensor magnet adapter is a solution designed to facilitate speed detection on an electric-assist bicycle equipped with a Center Lock disc brake. It combines a magnet with the measurement system to ensure a reliable speed signal, which is essential to the smooth operation of the assistance system and the consistency of the information displayed.
Designed for the world of e-bikes and electric mobility, this adapter meets the needs of users looking for a clean assembly and integration adapted to the constraints of a disc assembly. It's an ideal component for replacement or for restoring correct speed measurement.
To choose the right part and secure your intervention (maintenance, replacement or overhaul of the gear system), check the SM-EWSS2 product reference and the configuration of your bike (Center Lock disc assembly).
Scroll down the page to consult the detailed technical specifications at the bottom of the ↓ sheet
Warranty : 2 years
Product overview
The magnet adapter for SHIMANO SM-EWSS2 speed sensor (Center Lock version) is a part dedicated to disc brake assemblies. It allows a magnet to be attached to the speed sensor to ensure detection of wheel rotation and transmission of speed information to the system concerned, a key point for the smooth operation of connected equipment and compatible electric-assist bike motorizations.
Benefits for the user
By replacing a worn, missing or damaged adapter, you restore a stable speed reading that can be used by the system. This magnet adapter helps to maintain a consistent speed display and regular measurement, useful for assistance control, trip tracking and electric bike data processing when the assembly requires a Center Lock configuration with disc brake.
Technical specifications (available data)
Brand: SHIMANO.
Model: SM-EWSS2.
Designation: Magnet adapter for speed sensor.
Indicated configuration: Center Lock, for mounting with brake disc.
Recommended uses
Recommended for replacement or reconditioning of the magnet/speed sensor assembly on a disc-brake-equipped bicycle, when the indicated configuration is Center Lock. Suitable for maintenance and repair operations relating to speed measurement (sensor, magnet and associated adapters).
Compatibility
Compatibility explicitly stated: Center Lock mounting with disc brake. No other compatibility (systems, motorizations, ranges or specific brands) is provided in the available information.
Expert advice
Before purchasing, identify your exact type of disc mounting (Center Lock) to avoid installation errors. During installation, check the alignment between the magnet and the speed sensor, and ensure that the assembly is correctly secured: incorrect positioning can result in irregular speed readings. In the event of replacement following impact or signal loss, also check the condition of the sensor and associated wiring to eliminate any other causes of malfunction.