Model----SPD-SL ROAD Bike Adaptor Cleats for Lo-ok/Shimano 3-hole road pedals work with Shimano SPD-SL (Shimano Road), Campagolo, TiM road and similar 3-hole cleat systems. Features: Solves alignment issues and common cycling pain (foot, knee and back). Relieves pressure or burning sensation under the foot on the outside of the feet. Allows the foot to function naturally without being forced flat by the pedal. Durable plastic to withstand rough road conditions, debris and dirt. Increases foot stability leading to improved power transfer. Flexible enough to adapt to the stiff sole of a rounded cycling shoe. Specially designed formula increases the strength of the plastic. Compatibility: Shimano compatible1 Cleat wedges work with Shimano SL road, Campagnolo, Tim road and similar 3-hole cleat systems. Includes: (8 pcs) 3-hole cleat wedges(2 pcs) 12mm Allen screws(4 pcs) 14mm Allen screwsInstallation instructions Why wedge? The 3-hole system is also known as the SHIMANO system (for the pioneering manufacturer/brand). The 3-hole system is most commonly used for road cycling as it offers a stable platform for energy transfer during cycling. The soles of many performance-oriented shoes are often made more for cycling than walking with stiff soles and little tread. The larger cleat design incorporates a three-bolt connection, which is a much more secure connection than the 2-hole type. Popular brands of 3-hole cleats include; , Shimano SL, Tim Road and others. Model----SPD MTB Features: Solves alignment issues and common cycling pain (foot, knee and back). Relieves pressure or burning sensation under the foot on the outside of the feet. Allows the foot to function naturally without being forced flat by the pedal. Durable plastic to withstand rough road conditions, debris and dirt. Increases foot stability leading to improved power transfer. Flexible enough to adapt to the rigid sole of a rounded cycling shoe. Specially designed formula increases the strength of the plastic. Technical Specifications: Weight: Less than 1 gram 34mm x 33mm Compatibility: Shimano SPDTim-e At-acSpeedplay Frog (see step 4) Crank Bros. (see step 4) (See instructions) Other popular 2-hole MTB pedals NOT COMPATIBLE WITH SPEEDPLAY SYZR What's in the box?!?!?! (8) 2-hole SPD / MTB compatible cleat wedges (2) 12mm Allen screws (2) 14mm Allen screws