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

5 ISO 559 Bead Wire Belted Tread/Sidewall Color Bk/Blk PSI 55-100 Weight (Grams) 730 TPI 67 Durometer Features Reflective Sidewall Yes

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

Fits all frames

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