How to True a Wheel — BikeSetup.Pro

Wheels · Beginner · ~10 min read · 7 steps

Wheels

How to True a Wheel

A wobbly wheel causes brake rub, handling imprecision, and spoke fatigue. Truing is the art of adjusting spoke tension to bring the rim back to straight. You can do it without a truing stand — the bike's own brake pads or frame can work as guides.

How Truing Works

The rim is centered between two hub flanges by spokes pulling from opposite sides. When the rim moves left, it means spokes from the right are too loose (or left too tight). The fix is always: tighten the spokes pulling toward the problem and loosen the spokes pulling away. Small adjustments have big effects — always work in quarter-turns.

Never tighten spokes without loosening the opposite side by a proportional amount when you're only correcting a deviation — otherwise you'll increase overall tension unevenly and risk spoke breakage over time.

Tools Needed

Spoke wrench (correct size)

Truing stand (or use the bike)

Marker or tape for reference

Without a stand: flip the bike upside down or put it in a work stand. Use zip ties on the brake caliper arms, or hold a marker against the fork leg, as a reference gauge.

Fix Lateral (Side-to-Side) Wobble

Identify the problem zone

Spin the wheel slowly and watch where it deviates from center. Mark the worst point with a piece of tape on the tire. The deviation zone is usually 3–5 spokes wide.

Find the spoke to adjust

If the rim is pulling left, find the spoke(s) in that zone that come from the right flange — tighten those by a quarter turn. Then loosen the left-flange spokes in the same zone by a quarter turn. Check and repeat.

Work the center, not the edges

The spoke at the exact center of a wobble needs the most adjustment. The spokes just outside the zone need half that amount. Taper your adjustments — most adjustment in the middle, less at the edges of the problem area.

Spoke wrenches move nipples in the direction that seems backward: turning clockwise (when viewed from the nipple end) tightens on most wheels. Always confirm direction on a loose spoke first.

Fix Radial (Up-Down) Wobble

Identify high and low spots

High spots (where the rim moves away from the hub) need all spokes in that zone tightened equally — both sides. Low spots need all spokes loosened equally. Radial truing affects lateral true, so alternate between lateral and radial passes.

Work gently

Radial wobble corrections are typically small — an eighth to quarter turn on 4–6 spokes. A badly radially wobbly rim may have been knocked out of round from an impact and may need professional attention if the wobble is severe.

Tips & Common Mistakes

Never tighten one spoke a lot

Truing is a balancing act across multiple spokes. A single very tight spoke creates a new wobble adjacent to it. Always distribute adjustments across 3–5 spokes in the problem zone.

Check overall tension when done

Pluck each spoke like a guitar string — they should all sound roughly similar in pitch. A very dull-sounding spoke is loose; a very high-pitched one is over-tensioned. Use the Spoke Tension Calculator to verify your target range.