Bobbins: 4.7mm thickness, approx 13.76 mm Dia. ( head is 19.6 mm). 6pcs Bobbins. Discs can vary from 6 - 12 bobbins,Pls place order base on your bike. Forge Machining 10.9 Grade Titanium Alloy. These are Semi-floating application and will be converted to Fully floating when you remove the wave washers.
