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

Model Echo Lock-On Shape Round Grip Color Yellow Clamp Color Black Length 132mm Diameter 32mm Color Yellow/Black

The 9-tooth sprocket allows full range with zero drop in efficiency

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

Kryptonite lock brackets allow for easy and safe transportation of U-Locks

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