Me again, can someone ( @mdcc_tester ?)tell me if I'm correct in the following:
Trying to determine what the theoretical tension balance between DS and NDS spokes should be on a dished rear wheel:
Hub dimensions are:
Driveside PCD 50.6mm Non-Driveside PCD 38.5mm NDS Flange-to-Center 37.8mm DS Flange-to-Center 16.2mm
Sketched that up with an ERD of 596mm (see attached pic) and I get the angles of the spokes to the verticals to be:
DS 3.39deg NDS 7.71deg
Resolving horizontal tension on NDS spokes, T_nds = sin(3.39)/sin(7.71) * T_ds T_nds = 0.44 * T_ds
Is that correct? So if I were to get my DS spokes to 120kgf and NDS to 53kgf I should have a perfectly dished wheel.
So if I were to get my DS spokes to 120kgf and NDS to 53kgf I should have a perfectly dished wheel.
If you get your wheel perfectly dished, you will probably find that the tension ratio is 120:53
It's that way around, you start by getting the rim where you want it.
@gbj_tester started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Me again, can someone ( @mdcc_tester ?)tell me if I'm correct in the following:
Trying to determine what the theoretical tension balance between DS and NDS spokes should be on a dished rear wheel:
Hub dimensions are:
Driveside PCD 50.6mm
Non-Driveside PCD 38.5mm
NDS Flange-to-Center 37.8mm
DS Flange-to-Center 16.2mm
Sketched that up with an ERD of 596mm (see attached pic) and I get the angles of the spokes to the verticals to be:
DS 3.39deg
NDS 7.71deg
Resolving horizontal tension on NDS spokes, T_nds = sin(3.39)/sin(7.71) * T_ds
T_nds = 0.44 * T_ds
Is that correct? So if I were to get my DS spokes to 120kgf and NDS to 53kgf I should have a perfectly dished wheel.