This little gizmo’s purpose is to reduce the big loop of cable housing at the rear derailleur, and effectively reducing leverage ratio and friction in the system.  They make old cheap derailleurs shift as well as Dura Ace, and makes Dura Ace and XTR M952 rd’s the best shifting derailleurs in the world.  They also do wonders to reduce ghost shifting on older full suspension mountain bikes.

This is an original 1990’s one, in the sought after silver alloy.  Comes with original fittings.

Condition

Excellent used condition.  Bearings on the pulley are just slightly rough.

Details

  • aluminum