CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 73mm For SRAM DUB Spindle MTB BLK 147x36x85 4" x 1-3/8" Length 4

4" x 1-3/8" Length 4 Material Steel Axle Size 3/8" w/14mm Adapter Color Black Weight 17

Fits all frames

And for unrivaled ease of customization Code Silver Stealth features Tool-free Reach and Contact Point Adjust

The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth: For use with GXP cranks and BB30 Long Spindle standard 49mm chainline

It is important to note that this is a +20mm adapter

CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 73mm For SRAM DUB Spindle MTB BLK 147x36x85 4" x 1-3/8" Length 4A bottom bracket built to outlast your frame BB ALPHA features hardened stainless steel races hand built with grade 3 Silicon Nitride ceramic balls custom engineered seals and precision dust covers delivering up to 500% better moisture protection while still providing ultra low friction performance. The simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations. All