Stan's NoTubes - Kit, E-Sync / Neo, Axle Spacer, Rear, 12X148, Cl Sabma They also offer the most

They also offer the most dependable airtight seal in the business

Not compatible with E-sync

To ensure total tightness

or OS (20mm through axle) hubs

Compatible with all Neo 6 bolt and Centerlock hubs

Stan's NoTubes - Kit, E-Sync / Neo, Axle Spacer, Rear, 12X148, Cl Sabma They also offer the mostOnly compatible with NEO OS front hubs which use #6804 bearings (20x32x7mm). Neo OS hubs are less common than standard Neo hubs and were made with larger bearings to allow use of 20mm axles for Downhill and Enduro forks. This is a replacement spacer sleeve for Boost 110mm width Neo Centerlock 15mm through axle front hubs ensures perfect bearing alignment and keeps the axle centered on the bearing.