AERO SPACERS TT – 30mm Headset Spacers For Trek Speed Concept Gen 1 (Bontrager Bars, 10-Pack)

Setting up the fit on a tri bike can be tricky, especially with a setup like the Trek Speed Concept Gen 1 with those integrated Bontrager bars.

These AERO SPACERS TT are made to help with exactly that.

They're designed specifically for that bike and handlebar combo, allowing you to fine-tune your stack height for a more comfortable and aerodynamic position.

This pack comes with ten spacers, and they measure 30mm in length and 20mm in width, which is the custom size you need for that setup.

They're a simple, unbranded black spacer, but they do exactly what they need to do.

If you're tinkering with your fit and need to adjust that front end, these are the right bits to get.