HJC Smart 21B Communicator YCRF_bicycle_helmets High grip - More abrasive

High grip - More abrasive - recommended for lower areas of bike where pants do not come in contact (frame

Easy to use sponge-on or spray-on waterproofing for all fabric

Stretch synthetic insulation for warmth

The Coil-On-Plug Kit improves cold and hot starts and provides a snappy throttle response

HJC Smart 21B Communicator YCRF_bicycle_helmets High grip - More abrasiveThe SMART HJC 2nd generation premium Bluetooth communication system models implement an all in one design, that is fully integrated into the helmet, allowing you to feel the optimal weight balance and aerodynamic performance while riding. Compatible with: HJC RPHA 91 helmet HJC RPHA 71 helmet HJC RPHA 31 helmet HJC i71 helmet HJC i91 helmet HJC F71 helmet