Shimano's 105 (PD-5600) SPD pedals are of course aimed at cyclists running a 105 groupset in their bike, but are also a great step up from a standard, general purpose clipless pedal towards lighter weight, performance components.
 
The 105 retains the wide, stable platform and large binding target for ease of use as found in the less expensive models, but uses upgraded bearings and lighter weight materials to create a more performance oriented pedal.

• Wide pedal platform for increased foot-pedal stability
• Wide bearing placement for uniform load distribution
• Large binding target for quick engagement
• Low maintenance sealed cartridge axle unit
• Adjustable cleat tention with indicators
• Lightweight design: Total system weight 400g (Pedals 330g Cleats 70g)