Velopedia

Bicycle Knowledge,
Specifications & Tools

Velopedia combines technical reference articles, historical bicycle specifications, and practical calculators for riders, mechanics, and anyone trying to understand how bikes work.

Browse the Encyclopedia Open the A–Z Index

Explore

Three ways to use Velopedia

01

Technical Encyclopedia

Components, technologies, standards, brands, e-bike systems, and the engineering behind modern bicycles.

Browse topics
02

Bicycle Archive

Historical model specifications, sizes, colors, original MSRP, and component details organized by brand and model year.

Explore the archive
03

Workshop Tools

Purpose-built calculators for wheel building and bicycle setup, with transparent inputs and practical results.

SpokeMasterTire Pressure

Velopedia Tools

Calculators for wheel building & bike setup

Explicit inputs, assumptions, and independent front/rear or left/right results.
Wheel Building

SpokeMaster

Calculate independent left and right spoke lengths from ERD, flange geometry, rim offset, spoke count, and lacing pattern.

Calculate spoke length Bike Setup

Tire Pressure

Estimate independent front and rear starting pressures from system weight, wheel load, tire size, terrain, casing, and air system.

Calculate tire pressure

Latest Entries

ISCG

Summary ISCG is the original International Standard Chain Guide interface introduced in 2003. It defines the position of three threaded […]

ISCG-05

Summary ISCG-05 is a standardized frame interface for mounting chain guides, bash guards, and related drivetrain-protection devices near a bicycle’s […]

Chain Guide

Summary A chain guide is a drivetrain component that limits chain movement around the chainring to reduce the chance of […]

Chain Damper

Summary Chain damper is an informal term for components that reduce uncontrolled chain movement or isolate the rider and suspension […]

Leverage Curve

Summary A leverage curve shows how the mechanical ratio between a bicycle’s rear-wheel movement and shock movement changes through the […]

DW6 Suspension

Summary DW6 is a six-bar rear-suspension architecture developed by Dave Weagle. Introduced on the Robot Bike Co. R160 in 2016, […]

A reference built around bicycles.

Velopedia brings technical explanations, historical model data, and practical workshop tools together in one searchable bicycle reference.

Scroll to Top