Index Bolt System Offers position options and while keeping the bars tight and secure. Low-profile bolt head prevents cable snags. 6061 aircraft-grade aluminum - anodized black finish. Clamp hardware included. Simple and easy to install. Sold as a set. Replacement Clamps for Cycra Probend Ultra CRM 7/8" or 1-1/8" Handguards. Revolutionary designed CRM Ultra clamps provide maximum bite to secure handguards. Allows for superior clearance on a wide range of bars. New updates provide greater allowance for air fork top caps. Clamps are beefy with large Allen bolts and a thick arm rising up to mount the ULTRA Probend bar.