Im trying to locate the battery box on the speedster project. I want to put it under the seat. It will work perfect in that location if I have enough clearance for the drive shaft. I will end up with one inch clearance between the torque tube and the battery box. How much side to side travel can I expect to have. I would think all the side to side travel should only be what the rear shackles allow. If I have one inch clearance in the center of the torque tube at the new battery box location. It should (in theory) take aprox 2 inches of side travel at the shackles, before the torque tube was to hit the battery box. I do not think that would ever happen in normal use. But just wanted to hear some opinions ... Thanks ....
I think you're right. I wouldn't expect it to be a problem.
If it happens,you're not going to be worrying about that battery box!
The only thing you didn't take into consideration is that when navigating up a crooked hill you can get the T transverse across a gully and that can twist the frame a bit. There isn't going to be any spec on it but just know that frame twist is real and does happen but whether that adds or subtracts from your clearance depends on where the battery box is mounted since both the box and rear end move with the twist while the shackle movement is separate from this.
John, Since my battery box is going to be near the center of the frame, I think its movement will be 1/2 of the twist (if Im thinking right), I do understand there is quite a bit of twist to the frame(and body) of a T. When driving my 22 touring at an angle over a hump or ditch, I can feel the seat cushion slide back and forth under me. I think Ill do a test before I build the box. I should be able to jack up the rear passenger wheel and also the front driver wheel at the same time, That should show me how much twist I will ever have. I do not believe there ever would be enough movement to make them hit, but I have found out that "what I think I know" sometimes turns into "what I did not know" And I agree with Jack, I probably will not care about the battery box, if it does get rough enough to make them hit