Components

Oval Chainring

Summary An oval chainring is a non-circular chainring designed to smooth out pedaling dynamics by varying the gear ratio through […]

Summary The Universal Derailleur Hanger (UDH) is a standardized derailleur mounting interface introduced by SRAM to simplify rear derailleur hanger

Summary I-Spec (Integration Specification) is Shimano’s integrated mounting system that allows compatible shifters and brake levers to share a single

Summary A direct mount chainring is a front chainring that attaches directly to a crank arm interface without using a

Summary A narrow-wide chainring is a chain retention solution that alternates narrow and wide teeth to match the inner and

Summary At first glance, a bike’s head tube may seem like just another frame tube. But behind that unassuming section

Summary Thru-axles are a wheel mounting system used in modern bicycles that pass through the hub and directly thread into

Velopedia is a cycling knowledge base. Explore brands, technologies, standards, and systems from across the bike industry.