You can replace a single broken spoke yourself with basic tools and about 30 minutes

A broken spoke won't stop you from riding, but it will throw your wheel out of true and make the bike harder to control. The good news is that replacing one spoke is a straightforward job that doesn't require special skills or expensive equipment. You'll need a spoke wrench, a new spoke cut to the right length, and a truing stand or a way to check your wheel alignment as you work.

The hardest part is usually getting the spoke length right. Spokes come in specific sizes measured in millimeters, and ordering the wrong length means a wasted trip back to the shop. Before you start, write down your wheel size (usually printed on the tire sidewall) and count the number of spokes on your wheel. Take a photo of how the old spoke was laced through the hub and rim, because you'll need to thread the new one the same way.

Key Takeaways

  • Remove the tire and brake if they block access to the broken spoke, then unthread the old spoke from the hub and rim.
  • Order a replacement spoke that matches your wheel size and spoke count, or bring the old spoke to a bike shop to match it.
  • Thread the new spoke through the hub and rim following the same lacing pattern as the surrounding spokes, then tighten it gradually with a spoke wrench.
  • True the wheel by checking for wobbles side to side and up and down, tightening or loosening spokes as needed until the rim runs straight.
  • Spoke tension matters as much as straightness—all spokes on the same side of the wheel should feel roughly equal tension when plucked.

Remove the tire and brake to access the spoke

Start by flipping the bike upside down or placing it in a repair stand so the wheel hangs freely. If the broken spoke is on the rear wheel, shift to the smallest cog first so the chain doesn't get in your way. Deflate the tire completely and remove it from the rim using tire levers if needed.

Next, check whether the brake caliper or rotor blocks your access to the spoke. On rim brakes, you may need to open the quick-release or loosen the cable to move the brake arm out of the way. On disc brakes, you'll need to remove the rotor or unbolt the caliper. Take a photo of how the brake is mounted before you move it, so you can put it back in the same position.

Unthread the old spoke and measure it

Once the tire is off and the brake is clear, you can see the spoke clearly. Locate where it threads into the hub flange—this is the part that sticks out from the center of the wheel. Turn the spoke wrench counterclockwise to loosen the nipple (the small threaded piece at the rim end) until the spoke comes free. Pull the spoke out of the hub and set it aside.

Lay the old spoke on a flat surface and measure it from the inside of the bend at the hub end to the tip. Write this number down in millimeters. If the spoke is too damaged to measure, take it to a bike shop and they can match it to a new one. You can also count the spokes on your wheel and note the wheel size—most shops can look up the correct spoke length from this information.

Thread the new spoke through the hub and rim

Before you install the new spoke, study how the surrounding spokes are laced. On most wheels, spokes cross over two or three other spokes as they run from the hub to the rim. The new spoke must follow the same pattern. Start by inserting the bent end of the spoke into the hub flange hole, pushing it all the way in so the bend sits flush against the flange.

Now thread the spoke toward the rim, weaving it over and under the adjacent spokes in the same pattern as the others. Once the spoke reaches the rim, insert the threaded end into the rim hole. Screw the nipple onto the spoke by hand first—turn it clockwise until it's snug but not tight. The spoke should be under some tension but still loose enough that you can move it by hand.

Tighten the spoke gradually and check tension

Use the spoke wrench to tighten the nipple a quarter turn at a time. After each quarter turn, pluck the spoke like a guitar string and listen to the pitch. As you tighten, the pitch will rise. Keep tightening until the spoke sounds roughly the same pitch as the spokes next to it. This is a rough guide—you'll fine-tune it in the next step.

Once all the spokes on that side of the wheel sound similar, move to the opposite side and check the tension there too. Spokes on the drive side (rear wheel) are usually tighter than spokes on the non-drive side, so don't expect them to sound identical. If one spoke is much tighter or looser than its neighbors, loosen it slightly and retighten to match the others.

True the wheel by checking for wobbles

Spin the wheel slowly and watch the rim. It should run straight without wobbling side to side or bouncing up and down. If it wobbles toward one side, that means the spokes pulling in that direction are too tight. Loosen them slightly—a quarter turn on the spoke wrench—and spin again. If the rim wobbles away from one side, tighten the spokes pulling in that direction.

Work on small adjustments. A quarter turn is usually enough. After each adjustment, spin the wheel and check the wobble again. This process takes patience, but rushing it means you'll overshoot and have to go back and forth. Once the rim runs straight side to side, check for up-and-down wobbles by spinning the wheel and watching the rim from above. Tighten spokes to pull the rim down where it's high, and loosen them where it's low.

Reinstall the tire and brake

Once the wheel is true, reinstall the tire and inflate it to the pressure marked on the sidewall. Spin the wheel one more time to make sure the tire doesn't rub on the brake or frame. If it does, the wheel may have shifted slightly during installation—spin it again and recheck the alignment.

Reattach the brake caliper or rotor in the same position it was before. If you removed a brake cable, reconnect it and adjust the cable tension so the brake lever feels firm but not locked. Spin the wheel one final time to confirm the brake doesn't rub and the wheel runs true. Flip the bike right-side up and take it for a short test ride on flat ground to make sure everything feels normal.

Frequently Asked Questions

How do I know what spoke length to order?

Write down your wheel size (printed on the tire) and count the total number of spokes. Take a photo of the old spoke and its lacing pattern, or bring the old spoke to a bike shop. Most shops can match it or look up the correct length from the wheel size and spoke count. Ordering the wrong length means the spoke won't reach the rim or will be too long.

Can I replace a spoke without removing the tire?

It depends on the wheel and brake setup. On some bikes, you can work around the tire if you deflate it completely. On others, the tire blocks access no matter what. Removing the tire takes five minutes and gives you much more room to work, so it's worth doing even if you think you can skip it.

What if the wheel still wobbles after I tighten the new spoke?

The new spoke may have shifted the wheel's balance. Loosen all the spokes on one side slightly, then retighten them in small increments while checking the wobble. If the wobble is severe, the rim itself may be damaged. Spin the wheel and watch the rim edge—if it's visibly bent, the wheel may need professional repair.

How tight should the new spoke be compared to the old ones?

All spokes on the same side of the wheel should feel roughly equal tension when you pluck them. They should sound similar in pitch. On a rear wheel, drive-side spokes are typically tighter than non-drive spokes, but within each group they should match. If one spoke is much tighter, loosen it slightly to balance the tension.

Do I need a truing stand to true the wheel?

A truing stand makes the job easier, but you can true a wheel without one. Flip the bike upside down or use a repair stand, then spin the wheel slowly and watch the rim against a fixed point like the brake caliper or frame. Adjust spokes until the rim runs straight. It takes longer without a stand, but the result is the same.