Speedbox 2.1 for Giant Code:SB21-G and one to fit cassettes

and one to fit cassettes with a 13 or 14 tooth small cog such as "junior cassettes"

5 mm (50 mm travel)

5 g - Outside diameter Ø: 34

e*thirteen Helix Race Cassette 12 speed 9-52T Eggplant Purple

which riders can do themselves without the need for any special tools or equipment

Speedbox 2.1 for Giant Code:SB21-G and one to fit cassettes" Specials " Speedbox 2. 1 for Giant Compatible with motors: Giant 2017 2021 PROPERTIES: Speed limiter: deactivated Display shows: actual values Compatible with motors: Giant 2017 2021 Activation: by pressing WALK WALK UP Compatible with SpeedBox App: NO Important Safety & Legal Warning: Performance Modification: The SpeedBox tuning chip is designed to update and modify your e bikes performance settingsaltering speed limits and acceleration curves