Find your perfect bike size with official size charts from the world's leading bicycle manufacturers. Each brand has unique sizing standards and geometry—use these charts to ensure the best fit for your next bike.
Cannondale emphasizes proportional response sizing, where each frame size is engineered for specific rider weights and power outputs. Their SmartForm aluminum and BallisTec carbon technologies are optimized per size, ensuring consistent ride quality across the range.
Canyon uses their Perfect Positioning System (PPS) to match riders to frames based on detailed body measurements. As a direct-to-consumer brand, they provide extensive online fit tools and sizing guidance, with geometry optimized for each size to maintain consistent handling characteristics.
Giant pioneered compact geometry in road bikes and uses their Total Fit system to match riders to frames. As the world's largest bicycle manufacturer, they offer extensive size ranges and develop women's-specific geometry through their Liv brand.
Specialized uses their Body Geometry Fit system, emphasizing rider contact points and individual biomechanics. Their Rider-First Engineered approach ensures each frame size performs identically regardless of size, with optimized tube diameters and layups for each size.
Trek uses a combination of traditional frame sizing with their Alpha Fit system, focusing on stack and reach measurements to help riders find the optimal position. They offer a wide range of frame sizes and geometries to accommodate different body types and riding styles.
Each manufacturer uses unique frame geometries and sizing standards. A "Medium" from one brand may fit differently than another.
Our charts use official sizing data directly from each brand, ensuring accuracy and reliability for your bike selection.
Road, mountain, hybrid, and gravel bikes have different fit requirements. Find the right size for your specific bike type.
Try our bike size calculators for personalized recommendations based on your measurements.