The-new-Rally-III-is-the-latest-cutting-edge-handguard-design-from-Acerbis-Constructed-solely-of-rigid-polypropylene-the-Rally-III-offers-light-weight-&-great-protection-The-Rally-III-has-a-built-in-spoiler-for-maximum-protection-against-branches-&-other-debris-Dual-injection-molded-construction-allows-for-a-rigid-spine-combined-with-a-more-pliable-plastic-spoiler-Allows-plenty-of-room-for-cables-&-brake-lines-made-of-polypropylene-Universal-mounting-kit-included-diameter-22-28-mm