. Manufactured using a composite material, the blades in the Look Keo Blade Road Pedals are less rigid, offering an engagement and release feel that falls somewhere between a conventional spring and a carbon blade With all the benefits of a blade pedal; a firmer engagement when clipping in, an aerodynamic profile and a lower weight compared to a conventional spring system, these pedals also provide a larger surface area to push against, optimising both comfort and power transfer Features: Body Material: Composite Spindle Material: Oversized CrMo Intended Use: Recreational to competition Bearings: 2 ball bearings, 1 needle bearing cartridge Pedal Stack Height: 14mmContact Surface Area: 400mm² Tension: Supplied with 2 types of composite blades; 8Nm and 12Nm Cleats: Supplied with grey Look Keo Grip Cleats Float: Black Cleat: 0°; Grey Cleat: 4.5°; Red Cleat: 9° (grey 4.5° cleats supplied) Weight: Pedal: 120g; Pair with Cleats: 308gTechnologies: Blade Technology: Using a blade instead of a conventional metal spring has many advantages such as safer cleat entry & release, a more aerodynamic shape and a lighter weight. Improved Spindle Profile: The Keo Blade pedal spindle was designed to obtain a very low stack height. It uses a needle bearing cartridge installed in a central position for better stress resistance while pedalling and two spaced out ball bearings which distribute the load, providing increased rigidity between the body and the length of the spindle guaranteeing excellent rotational speed. Spindle play (related to internal bearing movement and part wear) is eliminated by a wave spring that constantly applies a pre-load that does not deteriorate over time. When pushing hard on the pedals, this system can completely eliminate the annoyances caused by any play (noise and sensation of friction). Look spindles are only approved after a rotational test of 2 million cycles at 100rpm with a load of 90kg on the centre of the pedal and an eccentric rotation, which creates stress on each revolution. This is equivalent to a sprint by André Greipel of 1700 watts at 100rpm for 333 hours! This test is much more demanding than the current standard, the ISO 4210. Contact Surface Area: To fulfill the desires of some of the most demanding cyclists, notably competitors, the pedal and cleat system must allow efficient power transfer through a broad and rigid contact surface. Because of this, the Keo Blade platform surface is covered with a 64mm wide, stainless steel plate that has been moulded into the body and optimises, regardless of pedalling style, the over 400mm² cleat/pedal contact area Buy Look Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.