The SL “connector-less” system simplifies wheel changes: No more wires! Using a special dropout on your fork, the electrical connection is automatic: One pole is routed through the axle (and your frame), the other through an insulated ring that mates with a corresponding, insulated ring on your dropout. Simply insert the wheel, and the light is connected!
SON SL Dropouts
Framebuilders use these dropouts to build a fork for SON SL “connector-less” hubs. Strong CrMo steel is easy to braze. Requires an SL connector kit.
Made in Germany.