Bosch System Controller (BRC3100) The smart system Compatible chainline-44/47mm RS3 Cassettes are a great

RS3 Cassettes are a great replacement for 11-speed road sytems

6mm deeper profile and reinforced rim walls the new Flow S1 offers greater impact strength for an even wider range of use with only a minor weight gain

}Profile Design 3/One Aluminum Reverse Brake Lever Set: Black

9 Color Red Type Quick Release Material Aluminum Defined Color Red Weight 30

}Restrap Stem Bag - Black

Bosch System Controller (BRC3100) The smart system Compatible chainline-44/47mm RS3 Cassettes are a greatBosch System Controller (BRC3100) The smart system Compatible. Bosch Battery System Controller. Reduced to the essentials the System Controller is the control unit for Ebikes with the smart system. The scope of functions and information is deliberately limited so you have a quick overview that wont distract you when riding. The System Controller is seamlessly integrated into the top tube this gives the already robust companion additional protection is