ALPINESTARS Tech 10 Supervented Boots - Black Hue - US 13 2010520-1991-13 Youth Full Bore Gloves Fits flush with the bottom

Fits flush with the bottom case

Note: Bike side and the separate listing bench tuning kit do the same thing but

5 db at 4000 rpm

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ALPINESTARS Tech 10 Supervented Boots - Black Hue - US 13 2010520-1991-13 Youth Full Bore Gloves Fits flush with the bottomConstruction uses a highly breathable, perforated microfiber with internal perforated padding Highly ventilated perforated padding for optimized ventilation and airflow TPU features is combined with ventilation zones and a new air flow system sole for breathability and superior ventilation Two large inlet ports on front of boot with exhausts at back for optimized levels of airflow and heat exchange 3D Higher Spring insole creates an effective cooling