No lie, wheels matter. Wheels are some of the most important pieces of a well riding, quickly responding, bicycle. Giant and other bike manufactures are focusing more efforts on their own components. I’m interested to see how these ride and compare to wheel specific manufactures.

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New for 2012, Giant WheelSystems are the result of a holistic approach to creating the best-performing wheels for every type of rider in any condition. The design philosophy behind Giant WheelSystems is called System Engineered Performance. In creating them, product developers and engineers analyzed the ways the individual parts of a particular wheel affect each other. Every rim, spoke and hub is designed to optimally serve the system.

System Engineered Performance considers four key performance factors—stiffness, aerodynamics, weight and comfort—and seeks to perfectly tailor these factors to the appropriate user, bike and WheelSystem.

Currently there are four road models available: P-SLR1 Aero, P-SLR1, P-SL0 and P-SL1. These WheelSystems can be found on 2012 Giant road bikes and are also available to purchase as aftermarket components.

P-SLR1 Aero
A lightweight, deep-dish aerodynamic WheelSystem designed for high-performance riding and racing. Maximum stiffness and aerodynamics at the lowest possible weight.
• 50mm deep, 21mm wide scandium-composite tubeless-compatible rims
• Durable precision Swiss hub internals
• Aerolite bladed stainless steel spokes (16 front radial; 20 rear radial/2-cross)
• Individual wheel bags included
• 1575g

P-SLR1
Superlight high-performance race wheels engineered for a stiff, comfortable ride. Hand-built with the highest-quality components and materials.
• Tubeless Ready Scandium 21mm wide rims with CNC-machined alloy braking surface
• Asymmetric rear rim design for more uniform spoke tension and additional wheel stiffness
• Durable precision Swiss hub internals
• Aerolite bladed stainless steel spokes (16 front radial; 20 rear radial/2-cross)
• 1390g

P-SL0
A versatile performance WheelSystem for road riding and racing. Light enough to race yet tough enough for everyday training and riding.
• Tubeless Compatible rims with CNC-machined alloy braking surface
• Asymmetric rear rim design for more uniform spoke tension and additional wheel stiffness
• Durable precision Swiss hub internals
• DT Aero Competition bladed stainless steel spokes (16 front radial; 20 rear radial/2-cross)
• 1595g

P-SL1
Designed for performance road riding, aimed at enthusiasts or beginner racers seeking a stiff, durable WheelSystem.
• Light, durable 21mm deep 6061 alloy rims, sleeved joint
• Durable precision Swiss hub internals
• DT Champion stainless steel spokes (18 front radial; 24 rear 2-cross)
• 1775g