Dunlop Roadsmart 4 GT Rear Tyre 190 50 ZR 17 Tubeless Rato Australia AS NZ S1270:2002 CE certified Yes AS NZ S1270:2002 CE certified Yes Product data SNR 33 dB(A) NRR 27 dB(A) Bluetooth® Multipoint Communication Range 400 m Number of Participants 10 Private Communication Channels 3 Self Healing Communication Network Yes Simultaneous Speakers Yes FM Radio Urban area coverage Level Dependent Ambient Listening Yes Weight (complete product w o side packed articles) 453 g Colour Orange A rock or stick puncture here could quickly drain the lifeblood of the engine * MT Multi Tread™ technology in the rear tire uses a long wearing compound in the center * New tread patterns