TBT Bearings (Tiramic Bearing Technology) deliver outstanding performance. Ceramic balls are 60% lighter than steel, extremely durable, smoother and accelerate
faster than their steel counterparts.
* The starting torque of Tiramic Bearings is only 74% of normal bearings
* The turning torque is only 67% of normal bearings.
Both these factors significantly reduce chain drag making pedalling lighter and your ride much smoother.