Long B-Screw

Long B-Screw

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When using 40 tooth wide-range cassettes with a Shimano rear derailleur, a longer B-screw may be needed. A longer b-screw is almost always needed when upgrading to a 42T cassette with a Shimano rear derailleur.

Note: You will not need this longer B-screw with the Goatlink. We strongly recommend the GoatLink for your Shimano rear derailleur with 11-40T pr 11-42T 10-speed cassettes, 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.

Tech Specs:
  • This is a high quality 18-8 stainless steel M4 x 25 mm screw.

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