VoiceVelo VFV T47A Ceramic – Maximum stiffness and ceramic smoothness
The VoiceVelo VFV T47A ceramic bottom bracket is an uncompromising solution designed specifically for the VoiceVelo ECHO frame. It combines the reliability of a threaded connection with the extreme efficiency of ceramic bearings, guaranteeing lossless power transfer and smooth operation in all conditions.
ECHO Standard: The bottom bracket uses the asymmetric T47A standard (77 mm shell width), which ensures an ideal chainline and enormous stiffness of the bottom bracket junction, crucial during sprints and tough climbs.
CRANK COMPATIBILITY
The VFV T47A version offers full support for the most popular crank axle standards on the market:
- Shimano 24 mm: Perfect fit for all Shimano road cranks (Hollowtech II).
- SRAM DUB (28.99 mm): Dedicated for modern SRAM DUB standard cranks.
- 30 mm: Compatible with 30 mm axle cranks (e.g. Rotor, Cane Creek, Easton).
T47A TECHNOLOGY – NO MORE CREAKING
The asymmetric T47A threaded standard eliminates problems known from Press-Fit systems, combining their advantages with the durability of classic solutions:
- Secure thread: M47 cups guarantee stable seating, eliminating annoying noises and creaks during pedaling.
- Wider shell (77 mm): Provides better support for bearings and allows for optimal design of the frame's downtubes for improved aerodynamics and stiffness.
- Easy service: The T47A standard allows for quick assembly and disassembly using standard T47 tools, significantly simplifying drivetrain maintenance.
CERAMIC BEARINGS – EVERY WATT COUNTS
The bottom bracket cups are equipped with precision ceramic bearings with Silicon Nitride balls:
- Extremely low friction: Ceramic bearings roll with noticeably less resistance than steel counterparts, which translates into higher drivetrain efficiency.
- Double-Seal protection: The double-seal system and special Teflon grease protect the interior from water and dust.
- CNC durability: Cups made of CNC-machined aerospace aluminum ensure perfect alignment and longevity of the mechanism.
TECHNICAL SPECIFICATIONS
| Bottom bracket type | T47A (Asymmetric, T47-85.5) |
| Shell width | 77 mm |
| Thread | M47 x 1.0 mm |
| Bearing type | Ceramic (Silicon Nitride) |
| Construction material | Aluminum 7075 CNC |
Installation tip: Before purchasing, make sure you know what axle standard your crank has. For questions regarding compatibility with a specific power meter model, please contact us.
Build your VoiceVelo ECHO without compromise. Choose the ceramic smoothness of T47A.