HJC Smart 50B Communicator Fitment Clamp surface is 1-1/8" and

Clamp surface is 1-1/8" and tapers down to 7/8" to fit controls and grips

Direct laminated

The patented sidewall design of the MICHELIN Commander III tires enhance the styling of V-Twin motorcycles

Wired boom microphone

Complete with integrated D3O knee and hip armor and a heavy-duty CORDURADenim construction

HJC Smart 50B Communicator Fitment Clamp surface is 1-1/8" andThe 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 the following helmets: RPHA 91, RPHA 71, RPHA 31, i71, i91, F71.