SMART HJC50B Intercom System Stock Item:Smart HJC50B Black i71 RPHA 71 RPHA 91 Bluetooth 5.0 HJC Front sprockets are constructed from

Front sprockets are constructed from SCM420 chromoly steel alloy

W speed rating (168 mph)

Sizing: Mini #XXS-XS / EU 4-5 / US 5-6

The knurled section on the clutch end gives adhesion for handlebar grip

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SMART HJC50B Intercom System Stock Item:Smart HJC50B Black i71 RPHA 71 RPHA 91 Bluetooth 5.0 HJC Front sprockets are constructed fromThe SMART HJC 2nd generation premium Bluetooth communication system model implements 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. Based on the BT 5. 0 low power system, the 50B (based on SENA 50S 50R) features both the MESH intercom and 4 way Bluetooth intercom features. The enhanced sound system properties include audio multi tasking, sound