How to measure chainring holes for replacement. Use BCD and or bolt to bolt.

How to measure chainring holes for replacement. Use BCD and or bolt to bolt.
Email [e-mail]
Mobile [phone]
Website biketeacher.com
This is personalized hands on bicycle mechanic training classes taught in a small setting meant for the beginner or advanced person. Typically one on one, a maximum of three persons occasionally. You are welcome to bring your bike to class to diagnose, repair or build. All tools and materials (including shop bikes) are provided to you.
Also offering certificates for the 40 and 70 hour class. for those seeking employment in the industry. Flexible start times to meet your schedule.
Location: San Jose California 95125.
Website: www.biketeache...
Mobile Ph: [phone]
Email: [e-mail]
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Please watch: "Let's bench test the rear derailleur and see how it moves."
• Let's bench test the r...
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[@Hootyhoo-jq9vq]

You have saved me more times than I can.

[@BikeTeacher]

Many thanks. 🙏🎄

[@rimekeykharmusulman4788]

Can you make video how to measurethe size of hanger hole to would be fit in cycle