
Quickly replace the worn strap of your kill switch with this official S3 part. Designed as a replacement for item KB-306, the KB-307-B strap takes over the essential function of the stop button without fuss: a replacement "elastic" cord and a magnet to instantly locate the kill switch on the handlebars.
Product designed for the urban environment: discreet, easy to assemble, and practical for emergency stops or disconnection during handling. Ideal for riders who want to maintain the original ergonomics without replacing the entire kill switch.
Compatibility (examples):
Easy to install, this S3 strap restores the kill switch to its basic effectiveness: magnetic holding of the button and recovery of the elastic cord for a secure fit on the handlebars. Check the reference KB-306 if you are replacing the original part.