The ultimate objective of Shimano’s wheel designs is to create faster, more durable wheels for all types of riders through a strategic balance of key factors -- aerodynamics, lightweight, rigidity, compliance, comfort, durability, price and style -- plus the Quality Control manufacturing standards that have forged the Shimano legacy.
Dura-Ace
Product
Dura-Ace Wheel Sets
WH-7850-C50-TU    WH-7850-C50-CL   
WH-7850-C24-TU    WH-7850-C24-CL   
WH-7850-SL   
DURA-ACE Wheel Sets are focused on speed. New rim profiles yield substantial weight savings while maintaining the aerodynamic shapes. DURA-ACE Wheels are race tested at the highest levels of professional cycling to ensure the highest possible levels of performance and quality.
Ultegra
Product
Ultegra Wheel Sets
WH-6600    WH-6600-G   
WH-R601   
ULTEGRA Wheel Set features lightweight 10-Speed compatible alloy axles and freehub body with 16x20 straight pull stainless steel spokes.
Road Sport
Product
Road Sport Wheel Sets
WH-RS20-L    WH-RS20-S   
WH-R500   
The new Road Sport series integrate the best technology of the race-proven DURA-ACE wheels but at economical price points. These wheels are great for training rides and/or use at the local races.