hub / spoke question
- Thread starter kotajack
- Start date
It depends a lot on the hub and how big the flanges are in diameter on either side. If they are the flanges are the same diameter, the non-drive side spokes may be a little shorter. This is because the disc mount on the non-drive side offsets the 2 flanges towards the drive side. Since you have to dish the rim to the center, the non-drive may be a tad shorter than the drive side. Think more in terms of using the "correct" length spokes for the hub and rim, it doesn't really matter which is longer or shorter as long as they are the right length.
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Thanks Phatswalla,
OK, Marzocchi qr 20 plus front hub with two length spokes 260 mm and 261 mm. All the flange holes look the same to me. I am assuming the disk side would be considered th non drive. On a rear wheel the drive side is under the most torque, therefore on the front, is the disk side subjected to the most " abuse, torque " ?
Ideally on a rear wheel, would you be dishing the wheel towards the non drive side more to make up for the cassette and therefore making the drive side stronger? Using the longer spokes on the non drive side and the shorter on the drive side.
On a front wheel would you be dishing the wheel more towards the disk side using the shorter spokes on the disk side and the longer on the non disk side?
I've read all the posts I can find on this and am reading the art of wheel building and cant seem to find or understand this. This is my first wheelbuilding exp any info would help.
THanks for any help,
OK, Marzocchi qr 20 plus front hub with two length spokes 260 mm and 261 mm. All the flange holes look the same to me. I am assuming the disk side would be considered th non drive. On a rear wheel the drive side is under the most torque, therefore on the front, is the disk side subjected to the most " abuse, torque " ?
Ideally on a rear wheel, would you be dishing the wheel towards the non drive side more to make up for the cassette and therefore making the drive side stronger? Using the longer spokes on the non drive side and the shorter on the drive side.
On a front wheel would you be dishing the wheel more towards the disk side using the shorter spokes on the disk side and the longer on the non disk side?
I've read all the posts I can find on this and am reading the art of wheel building and cant seem to find or understand this. This is my first wheelbuilding exp any info would help.
THanks for any help,
On a rear wheel, the drive side spokes are always going to be under heavier tension than the disc side.
I think you're thinking too much about altering spoke lengths. If you use the correct lenght spokes, you can change how the wheel is dished dramatically without the threads bottoming out or coming out and becoming exposed. You only have to loosen the nipples on one side and tighten them up on the other side a couple of turns for you to really offset your rim. Spokes are pretty long and that's why you need such fine threads and half and quarter turns on the nipples for adjustment.
The important things are just for the wheel to be properly tensioned, true, round and the rim to be dished to the middle. There's no need to try and reduce tension if it is slightly higher on the drive side for the rear, it's always going to happen due to the dynamics of the wheel.
I think you're thinking too much about altering spoke lengths. If you use the correct lenght spokes, you can change how the wheel is dished dramatically without the threads bottoming out or coming out and becoming exposed. You only have to loosen the nipples on one side and tighten them up on the other side a couple of turns for you to really offset your rim. Spokes are pretty long and that's why you need such fine threads and half and quarter turns on the nipples for adjustment.
The important things are just for the wheel to be properly tensioned, true, round and the rim to be dished to the middle. There's no need to try and reduce tension if it is slightly higher on the drive side for the rear, it's always going to happen due to the dynamics of the wheel.
thanks again, I've got the front built just have to do the finishing details. I guess I was worrying too much about dishing the rim and how the spoke length would effect this. For the front I put the shorter spoke on the disk side and longer on non disk. So far it seems ok but the first rock drop will tell. Thanks
You can use spokes that have up to a 2mm deviation from the desired lenghts so 1mm is not going to make any difference. Good luck.