Aerodynamic 55T chainring for time trials & triathlon.

The FSA Aero TT chainring with 55 teeth was specifically developed for aerodynamic road bike, time trial and triathlon setups. Its enclosed aero design reduces air turbulence and ensures optimized performance at high speeds.

With a 130 mm bolt circle diameter (BCD) and 5-arm mounting, the chainring is compatible with corresponding road bike cranksets. Designed for 2x11-speed drivetrains, it provides precise power transfer in competition conditions. This outer chainring is ideal for combination with a 42-tooth inner chainring.

Highlights:

• 55 teeth: ideal for high speeds.
• Aero design: optimized for TT & triathlon.
• 130 mm BCD: classic road bike standard.
• 5-arm mounting: compatible with common cranksets.
• 2x11-speed: for modern drivetrain systems.

Technical specifications:

• Manufacturer: FSA
• Model: Aero TT
• Teeth: 55T
• Bolt circle diameter: 130 mm (BCD)
• Mounting: 5-arm
• Drivetrain: 2x11-speed
• Intended use: time trials, triathlon, aero road bikes

Scope of delivery:

• 1x FSA Aero TT 55T chainring
• Delivered in workshop packaging - securely packaged, without original packaging

Manufacturer part no.: 36800008008010 | EAN: 4713170250248

“Maximum aerodynamics for record times – the 55T Aero chainring from FSA for uncompromising speed setups.”