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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Girdraulic Springs
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<blockquote data-quote="everiman" data-source="post: 103322" data-attributes="member: 3852"><p>My easy way of finding spring rates for anonymous springs, find a round bar or tube that will fit inside the spring, about 6" longer than the spring. Clamp tube in vice, put spring over the tube, measure spring length</p><p></p><p>Get some barbell weights, if you don't have any, your local thrift store will. Slip at least 25 kg, or 50 pounds whatever will fit, onto the tube so the springs are compressed, measure the length, you might need a large washer for a skinny spring. Lets say that 25 kg compresses the springs 3/8 inch, convert kg to pounds, 25 X 2.2 = 55 pounds (55/3) X 8 = 147 pounds per inch. Not extremely accurate, but accurate enough.</p></blockquote><p></p>
[QUOTE="everiman, post: 103322, member: 3852"] My easy way of finding spring rates for anonymous springs, find a round bar or tube that will fit inside the spring, about 6" longer than the spring. Clamp tube in vice, put spring over the tube, measure spring length Get some barbell weights, if you don't have any, your local thrift store will. Slip at least 25 kg, or 50 pounds whatever will fit, onto the tube so the springs are compressed, measure the length, you might need a large washer for a skinny spring. Lets say that 25 kg compresses the springs 3/8 inch, convert kg to pounds, 25 X 2.2 = 55 pounds (55/3) X 8 = 147 pounds per inch. Not extremely accurate, but accurate enough. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Girdraulic Springs
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