S41 special trail tool to tighten S21 lock nut for D476, D477, GH-099, GH-199 derailleur hanger KTM.
Countersunk hole for M6 flat head bolt, hex 6 mm socket for Allen wrench.
Made by Pilo.
For any questions please e-mail us:
To be sure if this the right part, please send us photos of:
1. Your derailleur hanger from both sides;
2. And if possible bike‘s frame part photos, where dropout was attached.