Evotech Performance Front Spindle Bobbins Street Triple The Evotech Performance Front Axle Sliders help protect your forks, brake calipers and axle in the event of a crash. Nylon sliders stick out from an aluminum inner to take the initial impact. Each slider is able to rotate freely to help reduce wear and damage in a slide. Features: Protects your forks and brake components Abrasion-resistant slider puck Impact-resistant Engraved logos. Compatible bike: Triumph Street Triple 675. Triumph Street Triple 765. Triumph Trident 660. Triumph Tiger sport 660.