![Shimano 200GS rear derailleur keeps clicking. What do these screws do? I've turned them both ways but can't figure it out. : r/bikewrench Shimano 200GS rear derailleur keeps clicking. What do these screws do? I've turned them both ways but can't figure it out. : r/bikewrench](https://i.redd.it/sxed0pdxdha91.jpg)
Shimano 200GS rear derailleur keeps clicking. What do these screws do? I've turned them both ways but can't figure it out. : r/bikewrench
![Stuck, now broken Shimano 200GS RD barrel adjuster. Do I need to replace it with the same plastic thingy? : r/bikewrench Stuck, now broken Shimano 200GS RD barrel adjuster. Do I need to replace it with the same plastic thingy? : r/bikewrench](https://preview.redd.it/62l547if71i71.jpg?auto=webp&s=41c12cb6c9207fe2e209b9c0a8cb72e6a35019bb)
Stuck, now broken Shimano 200GS RD barrel adjuster. Do I need to replace it with the same plastic thingy? : r/bikewrench
![The large chainring looks oblong when it's spinning. Is this expected? It's a simple Shimano 200GS off a 90's Trek 820. The rings are not warped when viewed from above. : r/bikewrench The large chainring looks oblong when it's spinning. Is this expected? It's a simple Shimano 200GS off a 90's Trek 820. The rings are not warped when viewed from above. : r/bikewrench](https://external-preview.redd.it/TnjOmgZxehz-w1m1u8h9CCny-HUgZC-I_zc_urzYFME.png?format=pjpg&auto=webp&s=b07862c75e1121a3b353562e2a429b70232e9228)
The large chainring looks oblong when it's spinning. Is this expected? It's a simple Shimano 200GS off a 90's Trek 820. The rings are not warped when viewed from above. : r/bikewrench
![SHIMANO 200GS 28.6 Clamp-on TRIPLE front derailleur NOS! BB21G 001 - 7/1/21 RK02 | renaissance-cycle SHIMANO 200GS 28.6 Clamp-on TRIPLE front derailleur NOS! BB21G 001 - 7/1/21 RK02 | renaissance-cycle](https://primary.jwwb.nl/public/w/c/s/temp-tfemsekqdnagoejmlbxw/yuggg4/IMG_8650-1.jpg)