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Bottom Bracket Technology | Token Cycling


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 while the turning torque is only 67% of normal bearings. Both these factors significantly reduce chain drag making pedalling lighter and your ride much smoother.

AVT shares a lot of the same properties as Kevlar. We are not aiming to stop bullets, but the strength of Kevlar is one of the key factors we wanted from AVT in our wheels.Weight for weight,AVT is eight times stronger than steel, resistant to high temperatures, fatigue, impact and the corrosion from chemicals or saltwater.


All TOKEN products equipped with Tiramic Bearings carry a distinctive “TBT” Sticker or laser etched logo.

TOKEN products equipped with Tiramic Bearings include: hubs, integrated BB, ISIS drive BB, square BB, rear derailleur pulley, headset.


  • Non-corrosive
  • Weight reduction: Ceramic balls are 60% lighter than steel balls
  • Durability: 5 to 10X longer lifespan than steel balls
  • Accelerate faster: Speed increase approaching 4%
  • Smooth rolling: Ceramic balls are rounder and smoother than steel balls
  • Low friction: Maintains momentum
  • Less vibration: Resulting in a smoother ride
  • Resistant to contamination


  • For BB30 press fit frame (Ø46x68mm) & BB386 frame (Ø46x86.5mm) with BB30 Ø30mm crankset
  • Ø46mm alloy CNC cups for strength, stiffness and precision
  • PA+FIBER plastic cups allow for better frame tolerance
  • Available with 6806 sealed bearings or 6806TBT Tiramic Bearings
  • Weight:97g/set

Model No:

  • PF30AP w/sealed bearings
  • PF30AP-TBT w/Tiramic Bearings