ARROW 71672MI [AOE]: LINK PIPE 2:1 N-C Stainless steel - YA YZF R1/M 17>21 PRN01005411 the nylon bobbin heads are

the nylon bobbin heads are free to spin above the aluminium inner to reduce stress on the wheel

The innovative EP design allows the nylon to move with impact to reduce stress on the wheel

Features of Evotech Brake Lever Protector Kit (Race) for the Yamaha YZF-R1M

Features of Evotech Bar End Weights (Touring) for the Kawasaki Z650

Aluminium inside adds strength to the bobbin head

ARROW 71672MI [AOE]: LINK PIPE 2:1 N-C Stainless steel - YA YZF R1/M 17>21 PRN01005411 the nylon bobbin heads areFor: 2017 UP In the diagram, a Broken Line indicates that both connected items will connect together or will connect with the O. E. corresponding item at time of initial fitment. Arrow Part Number 71672MI Note This Non Catalytic Link Pipe connects directly to the O. E. Header Pipe system to allow any of the ARROW GP2 # 71521 Series & Indy Race # 71829 Series of silencers designed for this model to be selected for fitment. Or alternatively, the O. E.