A ceramic bearing with stainless steel races. Less friction, a much smoother drivetrain and more pedalling speed.
An oversized jockey wheel for your rear derailleur, in 15 or 17 teeth. A hybrid ceramic bearing with stainless steel races, CNC 7075 aluminium at 14 g (15T) or 16 g (17T), and spacers for 4, 5 and 6 mm bolts.
Size and weight. The 15T has 15 teeth, a 60 mm diameter and weighs 14 g; the 17T has 17 teeth, a 68 mm diameter and weighs 16 g. Both are CNC 7075 aluminium with a ceramic bearing and stainless steel races.
Compatible with Shimano and SRAM: 9 to 12-speed rear derailleurs. Before fitting it, check compatibility with your derailleur model.
Oversized jockey wheels reduce the angle the chain has to articulate through. That means less wear and saved energy on long rides or high-performance riding.
You'll need to adjust the derailleur hanger or replace it with a larger one.
Yes. It includes spacers to adapt it to 4, 5 and 6 mm bolts. It fits with an Allen key and shouldn't be overtightened, so it spins freely.
Every 300 km or after riding in rain or mud, with degreaser and a small brush. Check the teeth after around 3,000 km of hard use or if you hear noise when shifting.
Engineering designed to work together.