Machined specifically to work with Gamut Bashguards, Trail Guides, and Chain Rings, these aluminum bolts are designed to be installed in reverse. Easy to follow instructions included for proper installation. The 10.5mm bolts are compatible with Saint cranks while the 9.5mm bolts are compatible with all other cranks. Now available: New 5.5mm bolts are designed for use without bash guards for 1x setups. Each kit includes a set of four bolts.