Hello all, I tried lacing the rear wheel of my cargo e-bike. Did I do this right? There were many broken spokes before re-lacing, so couldn’t really just duplicate how it was.
by CryptographerShort69
Hello all, I tried lacing the rear wheel of my cargo e-bike. Did I do this right? There were many broken spokes before re-lacing, so couldn’t really just duplicate how it was.
by CryptographerShort69
3 Comments
As far as I can tell, this is a correctly laced wheel. Good job.
Looks fine to me, but it’s always hard to tell in pictures because of the changing angles.
To see if I messed up, I usually check that the spokes cross at the same point all around. If one crossing point is not at the same radius as the others, something’s wrong.
Now comes arguably the most tedious part of the process : tensioning and dishing. Take your time, don’t be afraid to start over by loosening all spokes if you’re lost.
Edit : and you put the valve hole at the most convenient point of the pattern ! Good job
It seems correct to me.
The rules for lacing are the following :
-Cross as much as you could if the hub will have power/braking torque
-The limit of crossing is the incoming angle of the spoke to the rim. When you cross too much, the spoke comes with a wide angle and it messes the threaded part of the spoke when tightening it.
-The last crossing should invert innie and outie (except in the case of just 1 crossing where it’s not mandatory)
-There should be no crossing facing the valve
(Bonus)
-patern should be symetrical : Innie to the front or the back on both side.
-The most powerfull torque should “push” (relax) spokes toward the inside of the wheel at the last (inverted) crossing. If disc brake, brakes are always more powerfull than an engine or your legs.