B-Bolt 25 Mm

The 25 mm B-screw for Wolf Tooth Components GC with Shimano rear derailleur
The 25 mm long B-screw by Wolf Tooth Components must be used if the Wolf Tooth GC 42-tooth sprocket is used with a Shimano rear derailleur. It may also be required for the GC 40-tooth sprocket. Only if you combine the GCs with the GoatLink rear derailleur adapter, this longer B bolt is not necessary. It is made of high-quality stainless steel and has an M4 thread.
Technical Information:Material:stainless steel (18-8)Size:M4 x 25 mmCompatibility:Wolf Tooth GC 40 for Shimano 10-speedWolf Tooth GC 42 for Shimano 10-speedManufacturer Number:BSCREW25
Contents:1 x Wolf Tooth Components 25 mm B-screw