Inner ring :37X41X12
it makes such a clutch system called ingenious CEB (Engine Braking Control)
Disc Saver Enduro
or can be removed completely
Made of high quality Aluminum with laser finish
FACTORY LINKS Suspension Linkage Repair Kit Inner ring :37X41X12Contains Dust Seals x8, Needles x7, Pins, Collars Flanged x6, Pins, Collars Plain x3, Pins, Collars Plain with Shoulder x1, Pins, Collars Special x2, Washers x2 FACTORY LINKS kits contain all elements required for a full service of your linkage (including the lower shock absorber). The needle bearings, collars, pins and oil seals are specifically manufactured in order to reach OEM quality requirements, in terms of materials, dimension tolerances,