Another short answer :- go to www.reliablespring.co.uk and use the calculator, that way you can work out the effect of removing coils on spring rate. No need to reinvent the wheel.ER, I only needed a rough answer.
Mac
Another short answer :- go to www.reliablespring.co.uk and use the calculator, that way you can work out the effect of removing coils on spring rate. No need to reinvent the wheel.ER, I only needed a rough answer.
ER, I only needed a rough answer.
Right back when I first started with AVO they tested some standard springs complete with brass claws for me. I was curious if the conical ends made the spring progressive. The answer was no, they were linear right up to the point they went solid. The spring rate for the both the original and Spares Co springs were nearly bang on the spec. 195 lb/in from memory.Well, Rob's answer is excellent, much better than my memory, but it was more the process and some of the terminology that sticks in my memory.
At one point I thought about doing a rear spring that was more like a stock Vincent. I wondered if the ends of the Vincent rear spring brasses captured more of the spring to make the last coil fully inactive. Like Chris, I wanted rough calculations unless I was dragged into more detailed ones. If I were testing a rear spring on a press with a scale, I would leave the brass ends on to get the best spring rate readings.
David
Right back when I first started with AVO they tested some standard springs complete with brass claws for me. I was curious if the conical ends made the spring progressive. The answer was no, they were linear right up to the point they went solid. The spring rate for the both the original and Spares Co springs were nearly bang on the spec. 195 lb/in from memory.