- When using the GC 40 with a Shimano rear derailleur, a longer B-screw may be needed. A longer b-screw is almost always needed when using the GC42 with a Shimano rear derailleur.
- Weight: 2.5g
- Material: Highquality 18-8 stainless steel
- Size: M4 x 25mm
Note: You will not need this longer B-screw with the GoatLink. We strongly recommend the GoatLink for your Shimano rear derailleur when using the GCs, as it will improve long term shifting and drivetrain life. Be sure to check you have a compatible rear derailleur per the details on the GoatLink product page. - Rate this product
Rate this product
Unfortunately, there isn't any review yet. Be the first one and share your experiences with thousands of other riders! 😀 - Show all items from Wolf Tooth