Bicycle derailleur tuning academy

[@stephanbennett2242]

Thank you. Long video but worth watching till the end.

[@mantelles]

Hi from Silicon Valley USA. Thanks for posting this, very helpful and well presented. Your English is just fine. Take care.

[@sik1967]

Svaka cast, majstore! Great english, too.

[@seventiesandbeyond]

Keep up the great videos!