SoCalDesertRider wrote:
rjxj wrote:
SoCalDesertRider wrote:
It's not the radius, it's the whole axle diameter, plus the thickness of the spring pack, plus the height of the original bottom spring pad, plus the height of the new top spring pad.
You're moving the bottom of the spring pack from where it is, about 3" below the bottom of the axle tube, to where it will now be, about 1" above the top of the axle tube. This example is assuming both spring pads are about 1" high and the spring pack is about 2" thick and the axle tube is about 3" diameter.
Going from bottom to top, it's the spring pack thickness (2"), plus the bottom spring pad height (1"), plus the axle tube diameter (3"), plus the top spring pad height (1"). This totals 7", in this example. Axles can be all different diameters. Spring packs can be all different thicknesses. Spring pads can be all different heights. So it is entirely possible to end up with a measurement less than or greater than this example.
Another example could be a 2-1/2" axle, 1/2" spring pads and a 1-1/2" spring pack, which would make 5" instead of 7".
No. You're not moving the center line to the bottom edge of the axle. It's still at the center of the tube. Look at the center line of the tube as it swings under. It's all about the center line of the tube. It's all going under the spring so the thickness of the spring pack counts. The perch is still the same thickness and the radius is still the same or the same distance from the spring as it was when up on top. If you measure from the top of the spring surface to the center of the tube and say it's 3 ", when you put it under the spring pack and measure from the bottom flat surface to the center of the tube it's still 3 "and we now have to add the sprig pack thickness for the amount of lift. It will make you scratch your head when you try to picture it but that's what it's doing.
Yes,the axle radius, perch thickness and spring pack thickness numbers can all change but the formula stays the same.
In the interest of not fighting about it, at this point, we will have to agree to respectfully disagree. :)
I didn't know there was any arguing. It's a math question not an opinion.
