Magnetic pulse emitter for bicycle wheel revolution measurement has housing formed of two sections which can be locked together around the wheel spoke with a catching mechanism

摘要

A magnet (1) is fixed to the spoke of a wheel using a fixing arrangement (2) comprising a housing (4) formed of two sections (5,6). The two housing sections are tubular and can be locked together around the spoke with a catching mechanism, with a variable gap between them (A).