ENVE In-Route Headset Spacers

These spacers are designed specifically for the ENVE In-Route system. While they fit standard 1-1/8 inch steerer tubes, they are intended to integrate with the specific geometry and cable routing channels of ENVE cockpits and compatible frames.

The standard 5mm and 10mm spacers are solid pieces used for height adjustment. The 'Pass Through' spacer is designed to accommodate the specific routing of hydraulic lines or cables as they transition from the cockpit into the frame, ensuring a clean, kink-free path.

No, these are engineered exclusively for internal cable routing systems. Using them on a bike with external cables would not provide the intended aesthetic or functional benefits and may not seat correctly against your stem or headset cover.

Installation is straightforward, but because these are part of an internal routing system, you will need to be comfortable disconnecting and re-bleeding your hydraulic lines or re-cabling your bike. If you are not experienced with internal routing, we recommend having a professional mechanic handle the installation.

Yes, you can stack the 5mm and 10mm spacers to achieve your desired stack height. Just ensure that your steerer tube is cut to the appropriate length to accommodate the total stack height plus the stem clamp area.