Evil Alloy Skinny Little Bitch Seat Clamp

This clamp is specifically engineered for the geometry and stress demands of BMX frames. While it is designed for a 31.8mm seat tube, we recommend verifying your frame's specific seat tube outer diameter before purchasing, as compatibility varies significantly across cycling disciplines.

The 31.8mm measurement refers to the outer diameter of your bicycle's seat tube, not the seatpost itself. You should measure the outside of your frame's seat tube to ensure a proper fit.

CNC machining allows for tighter tolerances and more precise material distribution, resulting in a clamp that holds more securely without adding unnecessary weight. It provides a cleaner, more reliable interface that is less likely to slip during hard landings or aggressive riding.

This clamp is primarily designed for metal BMX frames. If you are using a carbon fiber frame, you should consult your frame manufacturer's specifications regarding clamp compatibility and torque requirements, as carbon requires specific clamping pressures to avoid structural damage.

While it is built to be robust, you should always tighten seat clamps to the manufacturer's recommended torque specification for your specific frame material. Overtightening can damage both the clamp and your frame, regardless of how strong the component is.