Product Information
- Dropout 284
- Attaches to frame with (1) M5x10 Socket Head Screw Included
- Trek Part #W311356 Trek Part #W311263
- Specialized Part # S152600003 and S182600001
- Please contact us if you are unsure of which derailleur hanger you need. There are over 300 different derailleur hangers. Some frame use different hangers, for different model years.



















