Ebb niner bottom bracket adapter

The Niner Bio-Centric system allows a wide variety of gears to be easily engaged and eliminates the need for adapters, as well as offering the simplest possible singlespeed solution. Get what you need without using hub bolts, chain tensioners or braking system adjustments. The Bio-Centric system offers a greater range of adjustments thanks to the fact that the center of the bottom bracket is offset 8.5 mm. This compensation saves us from changing the chain length and allows riders to experiment with different settings depending on the position of the bottom bracket. Another great advantage is that the Bio Centric bottom bracket is adjusted by means of a screw that applies the It forces only on the EBB, eliminating the possibility of deformation or ovalization of the bottom bracket that other traditional EBB systems cause. Easy to adjust. No need to use bolts, chain tensioners or adjustments to the braking system.