Astra Depot 2x Tribal Spike Black Anodized Billet Aluminum Handlebar Grips with Throttle For 7/8 inch Handle Bar for Harley Honda Suzuki Motorcycle Bike Left (bar side) hole diameter: 7/8" (22mm) Right (throttle side) hole diameter: 7/8" (22mm) Material: Durable Billet Aluminum Custom spike design, provides smooth throttle tuning and better control Especially beneficial when wearing heavier gloves