FSA Afterburner Stem

This stem is constructed from 6061-T6 aluminum alloy. This material is a standard choice for cycling components because it offers a reliable balance between structural durability and weight savings.

The FSA Afterburner is designed for handlebars with a 31.8mm clamp diameter, which is the most common standard for modern mountain and road bikes. Please verify your handlebar diameter before purchasing to ensure compatibility.

The stack height is 40mm. This is a standard measurement, but it is worth checking your current fork steerer tube length to ensure you have enough space for the stem and any necessary headset spacers.

A 12-degree angle provides a moderate rise or drop, depending on whether you flip the stem up or down. It is a versatile choice that allows you to fine-tune your cockpit height for either a more upright, comfortable position or a more aggressive, aerodynamic stance.

Yes, the Afterburner is built with a 3D-forged and CNC-machined 6061-T6 alloy body and a secure 4-bolt faceplate. It is engineered to handle the rigors of trail riding while maintaining a precise, stiff connection between your bars and fork.