BCD (Bolt Circle Diameter)
Summary BCD, or Bolt Circle Diameter, is the diameter of the circle passing through the centers of a chainring’s bolt […]
Concepts
3x Drivetrains
Summary A 3x drivetrain uses three front chainrings paired with a multi-speed rear cassette to offer a wide gear range
2x Drivetrains
Summary A 2x drivetrain uses two front chainrings and a multi-speed rear cassette to deliver a broad gear range with
Stack
Summary Stack is a key bicycle geometry measurement that defines the vertical distance from the center of the bottom bracket
Reach
Summary Reach is a fundamental bicycle geometry measurement that captures the horizontal distance from the center of the bottom bracket
1x Drivetrains
Summary A 1x drivetrain is a bicycle gearing system that uses a single front chainring paired with a wide-range rear
Leverage Ratio
Summary Leverage ratio describes the mechanical relationship between rear wheel movement and rear shock compression in a full-suspension mountain bike.
Anti-Squat
Summary Anti-squat is a suspension kinematic property that determines how much a bicycle’s rear suspension resists compression under pedaling forces.
Suspension Kinematics
Summary Kinematics in bicycle suspension refers to the motion behavior of the rear axle and shock as the suspension compresses