FSA Gossamer Pro AGX+ Crankset

The Gossamer Pro AGX+ uses a 30mm spindle designed for the BB386 EVO standard. Because of its modular design, it can be adapted to fit a wide range of frame standards, but you should verify that your frame supports 30mm spindle cranksets before purchasing.

No, this specific model is engineered exclusively for single-chainring (1x) drivetrains. It comes with a 40T chainring optimized for the chainline and performance requirements of 1x gravel and all-road setups.

The scalloped arms are a weight-saving measure. By removing excess material from non-structural areas of the cold-forged aluminum, FSA reduces the overall weight of the crankset without sacrificing the stiffness or durability required for rough gravel terrain.

The 154mm Q-factor is designed to provide a stable, efficient pedaling stance that balances power transfer with comfort. It is a standard width for modern gravel bikes, ensuring your feet are positioned naturally for long days in the saddle.

Yes, the modular design of this crankset allows for chainring swaps. If you find that 40T is too tall or too short for your local terrain, you can replace it with a different size compatible with the FSA modular system.