ALPINESTARS Air Plus Gore-Tex Boots - Black - US 7.5 / EU 41 2336017-10-41 Chrome Knurled Bolt Kit for Softail Seat Fits between the stock collector

Fits between the stock collector headpipe and muffler on stock OEM 2-into-1 systems

Waist adjuster and calf volume adjuster for an optimized fit

Same construction and sound as the Cobra short RPT systems

Fitment: Yamaha R1 2015-2021 (including R1S / FZ10 2017-2018 / MT10 2019 +

ALPINESTARS Air Plus Gore-Tex Boots - Black - US 7.5 / EU 41 2336017-10-41 Chrome Knurled Bolt Kit for Softail Seat Fits between the stock collectorAir mesh main section construction is layered with highly breathable materials for superior ventilation Boot main section has PU over injected soft reinforcements Full grain leather on medial panel for comfort and durability Strategically positioned perforation zones on front and rear full grain leather accordion flex sections Waterproof, breathable Gore Tex XCR membrane Microfiber with technical texture and shift pad for protection and durability