Bicycle Single Disc Chain Guide - YP0719259

Made of high-strength aluminum alloy, processed by CNC machined.
Suitable for bottom bracket with 68/73 frame, BSA threaded bottom bracket.
Shimano BB50/BB51/BB70 bottom bracket and Sulian GXP also fitted.
(The bottom bracket must be an external bottom bracket, and the press-in and built-in bottom brackets cannot be used.)

[Bahaghari-miej]

Use the bb gasket rings to have clearance with the guide so it won't touch

[ArdianSutarjan]

just use narrow wide chainring + shadow+ and the problem is done