B PERFORMING OPERATIONS; TRANSPORTING
B62 LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62J CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
B62J50/00 Arrangements specially adapted for use on cycles not provided for in main groups B62J1/00 - B62J45/00
B62J50/20 Information-providing devices
B62J50/21 intended to provide information to rider or passenger