How to Fit Tubeless Rim Tape and a Road Tyre Insert

By Bicycle Superstore | Published: 2026-11-03

Category: Guías prácticas

A step-by-step guide to tubeless rim tape installation and road tyre insert setup, including rim tape width checks and the Tubolight Evo Road insert.

Quick answer

Install tubeless rim tape one layer wider than the rim bed, then seat the tyre and add the Tubolight Evo Road insert before final inflation. Check tape width and insert position at each stage rather than rushing to sealant.

Why rim tape width matters more than tape brand

Tubeless rim tape installation fails most often because the tape is too narrow, leaving the spoke holes exposed, or too wide, creeping up the rim wall and preventing the tyre bead from seating. Measure the internal width of the rim bed and choose tape that covers the full bed plus a millimetre or two onto each shoulder. If your rim has a shallow centre channel, a second layer can help, but only if the first layer is smooth and bubble-free.

Where a road tyre insert changes the process

A road tyre insert sits between the tyre and the rim, so it must be fitted before the tyre is fully seated. The Tubolight Evo Road insert is designed to protect the rim bead area, which means its position relative to the rim edge matters. Unlike a simple tubeless conversion road bike setup, you cannot fully inflate the tyre first and then push the insert in. Plan the insert fitting after the tape is installed and the tyre is loosely mounted on one side.

Step-by-step fitting process

Clean and inspect the rim bed: Remove any old tape residue and check for sharp edges or burrs around the spoke holes. Wipe the rim bed with isopropyl alcohol and let it dry completely. Skipping the clean leaves oil or old adhesive that stops new tape from bonding.
Choose the correct tape width: Measure the internal rim width and select tape that covers the rim bed and extends 1–2 mm onto each shoulder. If you are between sizes, go wider only if the tape still sits flat without curling up the sidewall. Tape that climbs the rim wall will lift the tyre bead and cause slow leaks.
Apply the tape under tension: Start two spokes past the valve hole and wrap one full layer, pulling firmly and keeping the tape centred. Overlap the start by about 10 cm and press the tape down with a thumb as you go. A loose wrap traps air bubbles that later lift under sealant pressure.
Pierce the valve hole and fit the valve: Use a pick to make a small clean hole through the tape at the valve opening, then install the tubeless valve with its rubber base seated against the tape. Tighten the locknut finger-tight only. A torn or oversized valve hole is a common leak point after tape installation.
Mount the first tyre bead: Fit one side of the tyre onto the rim by hand, working the bead into the centre channel. Leave the second bead off for now. Using tyre levers here can nick the fresh tape and undo your seal.
Position the Tubolight Evo Road insert: Slide the insert into the tyre so it sits evenly around the rim bead area, with no twists or bunched sections. Check that the insert is fully inside the tyre before mounting the second bead. An insert trapped under the bead will prevent the tyre from seating and may be damaged on inflation.
Mount the second bead and seat the tyre: Work the second bead on by hand, starting opposite the valve. Inflate with a tubeless pump or compressor until the bead pops into place, then check that the insert has not been pushed out of position. If the bead will not seat, deflate, re-check tape width, and add soapy water rather than forcing higher pressure.

Product facts

Tubolight Evo Road Tyre Insert - Pair: The Tubolight Evo Road Tyre Insert - Pair increases material over the rim bead by 30% to 60% depending on rim width and uses a harder compound. That extra coverage is aimed at reducing rim hits, so correct positioning during fitting is essential for the insert to do its job.
Tubolight Evo Road Tyre Insert - Pair