Jagwire J2 Inline Cable Adjusters
The J2 is a sleek update on traditional cable adjusters. It features a user friendly indexed adjustment wheel at the center of the adjuster. If you have older Shimano STI levers with external cables, the J2 can be mounted near the shifter. Otherwise mounting them at the head tube cable guides would be the way to go.
A complete set of J2 cable adjusters weighs 19 grams