58. How to Tension Wheel Spokes

Learn how to properly tension the spokes in a wheel.

IMPORTANT: Nuts and bolts on your bike should always be tightened to the manufacturer's specifications.
How to Tension Wheel Spokes

In this video, we'll learn how to properly tension the spokes in a wheel. Spoke tension is important to ensure your wheels are strong, reliable and long lasting.

Spokes that are too loose will continue to loosen and require constant wheel truing. Spokes that are too tight will cause damage to the rim, spoke nipples and hub flanges. All of the spokes in the wheel should have approximately the same average tension.

What You'll Need

For this job you'll need a wheel truing stand, an appropriately sized spoke wrench and a spoke tension meter. Park Tool makes a simple and affordable tension meter called the TM-1. Check the links beside this video for places you can order this tool online.

Measure Spoke Diameter

To find out what tension your spokes require, you'll first need to measure the diameter of your spokes. The Park TM-1 tension meter comes with a handy spoke diameter gauge. Use this gauge to find the smallest slot your spokes fit into. If your spokes are butted and have multiple diameters, measure the smallest diameter on the length of the spoke.

Find Required Spoke Tension

Using the tension meter's included conversion chart, find your spoke diameter and then locate the tension you want to use. Spoke tension requirements will vary depending on the type of rim you have. Lighter rims require less tension, while heavier rims can handle more tension. If you're unsure, check with the manufacturer of your rim. For this exercise we'll be tensioning our spokes to 107 kilograms force (kgf), which equals 24 on the spoke tension meter.

Measure Current Spoke Tension

Holding the tension meter horizontally, squeeze the handle and place the spoke between the posts as shown. Then release the handles. Now check the reading on the meter's scale. You can cross reference this number with the conversion chart to see how many kilograms force your spoke has. As you can see, the tension on our spoke is far too low. Now measure all of the spokes on your wheel, one side at a time. They should all have approximately the same average tension. Due to imperfections in the hub and rim, the tension will rarely be exactly the same for all spokes. A difference of 20% between spokes is acceptable.

Spoke Tension - Front and Rear Wheels

On front wheels the tension should be equal on both sides. On rear wheels the tension will be higher on the right side, or drive side of the wheel. Therefore proper spoke tension should be measured on both sides, but set to the right side spokes of rear wheels.

Increasing Tension

To increase the tension, turn all of the spokes around the entire wheel 1/4 counter clockwise and then measure again. Repeat this step until your spoke tension is within range all the way around. Then true your wheel as explained in the video titled "How to True a Wheel".

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Discuss this topic in the Wheel Forums

08/02 Any idea what could have happened to my rim?

[Image: IMG_3671.jpg]
So today I got a flat tire (unrelated, it was a nail, extracted, repaired. All good) and when I pulled over to try to find what caused it, I noticed that my rim was rubbing the brakes the way it does when it's out of true because of a broken spoke.
The spoke is fine. It's the RIM that's been damaged, and that has damaged my calm some. I took it to my usual bike shop, guys are pros, figured they'd have an answer, no such luck. They gave me vague language about how it "looked like it h... Read more >>

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[Image: image_zpsoivycnpy.jpeg]... Read more >>

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http://imgur.com/0uLqgOw... Read more >>

02/20 Wheels

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golfguy826... Read more >>

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I was wondering if someone could recommend to me which removal tool is needed to remove this freewheel? I recently broke a couple spokes and the freewheel needs to be removed to access the hole to put a new spoke in. I put the ruler there to measure the diameter of the space, it's about 35mm-ish. I was looking at park tools freewheel recommendation site, but don't see one that would necessarily match. Would the FR-6 or FR-8 work? Thanks!

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To see if your bike is effected go to: quickrelease-recall.com... Read more >>

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Hi, I'm having some trouble reattaching my daughter's rear wheel to the frame after fixing her flat. It's a 20" wheel, single speed, with linear pull brakes. I have it reinstalled and with what seems to be a good tension on the chain, but it's rubbing the brakes and it's a real chore to pedal.

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