So you want to convert your old roadie, or maybe you want to upgrade that hub to something a little less sucky, either way I hope this write up will help you understand how to lace and true a wheel. DISCLAIMER: I am not a professional bike mechanic, I do not have any formal training in wheel building, and I am not qualified to touch anyone else’s wheels. I have, however, laced and trued all of my own wheels ever since I was a wee lad destroying those Araya BMX wheels. Also, this article is incomplete — I would like all of you interested in attempting this to visit Sheldon Browns Wheel Building Page and read it a couple of times. There is more info there than you will know what to do with. Lets get started!
I started out intending to convert a geared rear wheel but ran into some trouble when several of the spoke nipple seats were missing — bummer. If you are converting a rear wheel then you will need to first figure out how to get the gear cassette off. There are several styles and possibly some special tools will be needed. I do have my el cheapo bike tool set that was direct shipped from the far east for about $40, it has many useful tools; crank arm puller, chain whip, a few cassette tools, and all of the basics. Unfortunately it did not come with the tool to loosen the rear cassette that I have. Next best thing and completely acceptable due to the fact that the cassette doesn’t have to be reused, a well placed screwdriver assisted by a hammer did the trick.
>
If you’re lacing a fixed gear wheel then you will have to pull the lock ring and cog for teardown. This can be accomplished with a spanner wrench for the lock ring, I have used the screwdriver tech with this as well. Don’t forget the lock ring is reverse threaded, so righty loosey. You will need a chain whip to take the rear cog off, had one in the tool kit. Everyone that rides a fixed needs to have some essential tools, and a chain whip is one of them.
>Once you have the gear/ gears off I suggest you study the lacing pattern real well, maybe even take a picture or sketch out the pattern. The next step is to start loosening the spoke nipples a little at a time working your way around the wheel. Get in the habit of using the valve stem hole as a starting point for reference. Finish completely disassembling the wheel until you have a pile of spokes, nipples, and a hub. If you ever wanted to paint your rim, now is the time.
Assembly:
Now the fun part. There are all kinds of lacing patterns and each one has merits but that is the subject for another post. The wheel I am building is a cross three pattern. To understand this you must know that a wheel has trailing and leading spokes. When looking at the wheel the trailing spokes are the ones that angle backwards compared to the direction the wheel is spinning from the right side — sheldon’s site has a great explanation of this — The spokes are grouped into sets of four ex. 32, 36, and a cross three pattern is where you have a leading spoke that crosses three trailing spokes.
Use the diagrams on Sheldon’s site, they are hard to beat. You start with the KEY spoke, which is the one right next to the valve hole. You start with the trailing spokes on both sides inserting the spokes from the outside of the flange, so the ends of the spokes are on the outside edge of the flange. Once you have the trailing spokes in place it should look something like this, you have to hold the hub with a twisting motion to keep the spokes lined up. TIP: To get the spoke nipple in place with deep V rims use a loose spoke through the hole spin the nipple on it and pull it down and unscrew.
>Now it is time for the leading spokes. This time you will be lacing the spokes from the inside. Thread a spoke through any hole and cross it in the opposing direction from the trailing spokes. You will cross three spokes and you should line up with a open spot in the rim. Now there is some variation with leading spokes. Some wheels have the leading spokes going behind the second crossed spoke while others have the leading spokes going behind the third crossed spoke. My wheel has the leading spokes passing behind the third crossed spoke. You will have to hold the hub while you get the first couple of leading spokes in place. Once all of the spokes are in place it should look something like this.
>Truing and tensioning. This is the part that scares people the most. If you have any old wheels laying around I would practice on those first so you can get a feel for how the adjustment procedure works. Start by setting all of the spoke nipples about even, maybe one thread showing on the spoke. Then I start at the valve hole and using my screw driver I work my way around giving all of the spokes a full turn. If none of the spokes feel any tension then I do it again until I feel a little tension on the spokes. Mia demonstrates…
>Now you have to start paying attention. You are trying to control vertical truing, lateral truing, dishing, and tension all at the same time. What I like to do is to work out most of the hop in the wheel and then start bouncing back and forth between lateral, vertical, and dishing until the tension gets close to what it needs to be. Work on which ever adjustment is needed most but in small steps. Don’t go crazy on any one thing without checking the others. But wait, you don’t have a truing stand… well neither do I. I use the taped pencil, or the hold your finger on the frame method. It actually works well once you develop your own free technique.
>Also, pay attention to that chainline. This is your chance to shim that hub and cog into good alignment and then center the wheel with some dishing. As for tensioning, this is a very subjective thing for someone in my shoes, no way to actually measure it. So I resort to more lo-fi ways. I pluck the spokes, I squeeze the spokes, and I pay attention when I am tightening them. It helps if you have a good wheel close by for comparison.
I hope this helps. If nothing else, at least you’ll realize what goes into setting up a wheel so next time your in your local bike shop you wont grumble when they tell you how much it is to fix your wheel.
Josh