Gottsu Co., Ltd. Improvement of shift defects due to distortion Bicycle parts brand "GORIX" has released a derailleur hanger direct attachment distortion measurement / adjustment tool (GX-1946) !! - Japan NEWS
How to Adjust a Bike Derailleur | Liv Cycling Official site
Gottsu Co., Ltd. Improvement of shift defects due to distortion Bicycle parts brand "GORIX" has released a derailleur hanger direct attachment distortion measurement / adjustment tool (GX-1946) !! - Japan NEWS