Roadframes

Roadframes are bicycle frames designed for riding on paved roads. They are optimized to balance efficiency, light weight, stiffness, and ride comfort for distances ranging from training to competition.

Materials used for roadframes include steel, aluminum, carbon fiber, and titanium. Steel frames are known for durability and repairability, aluminum for light weight and affordability, carbon fiber for high stiffness-to-weight ratios and smooth ride quality, and titanium for a long lifespan with a compliant feel. Frame construction methods vary as well, including lugged steel, welded aluminum, and bonded or monocoque carbon designs. Lugged construction allows repair and customization, while carbon monocoque frames aim to minimize joints and weight.

Key design considerations in roadframes revolve around geometry and stiffness. Geometry affects handling, fit, and comfort, with measurements such as stack and reach informing rider position, and head and seat tube angles influencing steering and pedaling efficiency. Modern frames may emphasize aerodynamics, with integrated cable routing and aero tube shapes, or prioritize comfort with longer top tubes and relaxed angles for endurance riding.

Standards and compatibility are important for component interchangeability. Roadframes typically accommodate different bottom bracket standards, brake systems (caliper or disc), and wheel sizes (commonly 700c, with some frames offering 650b options). Through-axles and internal cable routing are common on newer models, while older frames may use quick-release skewers and external routing. Bottle cage bosses, derailleur hangers, and tire clearance are also specified by frame design.

Variants of roadframes include racing, endurance, and aero categories, each emphasizing different trade-offs between weight, stiffness, aerodynamics, and comfort. While roadframes focus on paved surfaces, some models blur lines with gravel or cyclocross designs that offer broader tire clearance.