Sena SF Series HD Speaker Category_Brake Seals All metal bushings are case-hardened

All metal bushings are case-hardened and plated to prevent wear and corrosion

including racing vehicles

Designed to protect wheels from damage during tyre removal and installation

Will not deform and seize upon a hard impact like aluminum tubes can

Sena SF Series HD Speaker Category_Brake Seals All metal bushings are case-hardenedA Renewed Audio Experience Longtime Sena users will soon have the opportunity to refresh and upgrade their beloved and well travelled devices to experience audio at a level sure to provide many more miles of enjoyment. Sena's premium HD Speakers offer a marked increase in volume, bass boost, and clarity for a noticeably enhanced audio experience while riding. The new HD Speakers are also redesigned for physical comfort with a bevelled taper to reduce