1、3 Bearing Structure: 3 Bearing structure, smooth and brisk rotation, strong durability. 2、High Strength: Chromium molybdenum steel shaft lock pedal, good practicability. 3、Nylon Fiber Conversion Block: Note that it is only suitable for road lock shoes, not mountain lock shoes. 4、Double Sided Locking Design: Different from other types of vertical locking, it can be locked only by stepping on the pedals. 5、Applicable Model: Installation is suitable for three or four hole shoes, no need to install the kit, adjustable design 0‑15 °, unlimited free floating. Item Type: Road Bike Chrome Molybdenum Steel Axle Lock Pedal Color: As Pictures Shown Weight: Approx.584g/20.6oz Material: Chrome Molybdenum Steel Main Shaft + Aluminum Alloy Splint + Nylon Fiber Conversion Block Locking Spindle Size: Length: Approx. 80mm/3.1in Lock Pedal Spindle Thread Specifications: Diameter: Approx. 14mm/0.6in Aluminum Alloy Splint Heap Height 3 Holes: Approx. 11.5mm/0.5in Aluminum Alloy Splint Heap Height 4 Holes: Approx. 8.5mm/0.3in Aluminum Alloy Splint Can Be Adjusted from 0-15°, Free Floating Without Restriction Aluminum Alloy Splint Installation: 3, 4 Hole Shoes, No Installation Kit Required Rider Weight Limit: 185kg/407.9lb 2 x Lock Pedal Main Shaft 4 x Conversion Block 2 x Aluminum Alloy Splint 2 x Aluminum Alloy C Buckle 2 x Splint Base 9 x Splint Fixing Screw 7 x Conversion Block Short Screw 7 x Conversion Block Long Screw