What is a bicycle chainline and how to measure it?

What is a bicycle chainline, why is it important, and how to measure it? CONTENTS: 00:00 Introduction 01:49 Bicycle centre-line 04:30 Bicycle chain-line 06:13 Front and rear chainline 07:40 Offset frames 09:59 Why chainline matters 1 10:40 Measuring the front chainline 18:09 Measuring the rear chainline 27:43 Playing with the chainline 33:06 Catches and caveats Useful LINKS: Please use the BikeGremlin forum if you have any questions or comments: https://www.bikegremlin.net/ Bicycle chainline article: https://bike.bikegremlin.com/1755/bic... Accurate vs precise, digital vs analogue - Calipers, how to use them - video:    • How to Use Calipers – Accurate vs Precise,...   Rear hubs and their dimensions (and boost hubs): https://bike.bikegremlin.com/158/bicy... 32:38 How to properly shift gears on a bicycle - video:    • How to PROPERLY shift gears on a bicycle?   A list of BikeGremlin websites and channels: https://www.bikegremlin.com/ List of all the BikeGremlin videos, sorted by categories: https://www.bikegremlin.com/youtube/ Camera: My better half id: 1183 Support my work by becoming a BikeGremlin YouTube channel member (for $ 5 per month):    / bikegremlintube   If you prefer, you could also help via a Patreon donation:   / bikegremlin   #bikegremlin #mostlyharmless