Description
BB30 SRAM DUB coated 42X73 bottom bracket for 29mm black For Sram Dub frames 73mm box width, 42mm diameter Friction gain 0.3-04, watts. 100% smoother and 15% harder balls than the ceramic competition. Average drag reduction of 75% compared to most BB's Coated products: coating increases bearing life, prevents wear. Metallic layer 75% harder than hardened steel. Applied very thinly and evenly over the entire inner and outer surface Box Contents: 2 bowls with CS bearings installed, 2 protective covers, 1 spacer 3mm, 2 spacers 1mm, 1 syringe of All Round grease 10ml Hand made in Denmark