Jagwire Frame Mount Index Adjusting Barrel

These adjusters use a standard M5 threading, which is 5mm in diameter with a 0.8mm thread pitch. They are designed to fit most standard frame-mounted cable stops, but you should verify your frame's existing mount threading before purchasing.

This bulk pack is intended for professional mechanics, frequent tinkerers, or riders maintaining a fleet of bikes. It is a cost-effective way to stock up on a small, easily lost component that is essential for keeping shifting crisp across multiple setups.

These are specifically designed for indexing, meaning they are intended for derailleur systems where precise tension adjustments are required for shifting. They are generally not suitable for brake systems, which require different hardware and safety standards.

These barrels are constructed from steel, offering better durability and a more solid feel when adjusting your cable tension compared to plastic alternatives. The metal construction ensures the threads hold up well over repeated adjustments.

No special tools are required. They are designed to be threaded into your frame's cable stops by hand, allowing you to easily adjust them on the fly while out on a ride.