These hubs are strong, well designed and great value for money
Bearings:
- hub uses 6902 bearings with dimensions 28mm x 15mm x 7mm
Axle:
- 88mm wide (without end caps);
- 62mm between bearing race shoulders;
- bearing outside width is 62mm + 7mm + 7mm = 76mm;
Hub body:
- 27.5mm outside diameter;
- 23.3mm inside diamter;
- hub body wall thickness in center section: 2.15mm
Conversion to 15mm thru
Two options:
Option 1 (standard, off the shelf parts):
- remove standard axle;
- get XD711SB 'axle' - its actually a bearing spacer that fits between the bearings;
- get XD711SB 15mm end caps
Option 2 (some machining required):
- remove standard axle;
- remove standard bearings and replace with 17287 bearings (these have 17mm ID instead of standard 6902 15mm ID;
- make end cap shields 1.5mm thick, 28mm diameter;
- fit American Classic 15mm thru axle conversion