OzVMX Forum

Clubroom => Tech Talk => Topic started by: jerry on July 31, 2012, 08:46:25 am

Title: SHORTENING SHOCK SPRINGS
Post by: jerry on July 31, 2012, 08:46:25 am

Following on from my question regarding shock dismantling (which was well answered by the way!) I now want to shorten my springs approx 1 1/2" (showing my age!) Is there a method? Any help appreciated Jerry

Title: Re: SHORTENING SHOCK SPRINGS
Post by: Mick D on July 31, 2012, 09:56:38 am

Yeah I have done it Jerry.

Worked as planned, but it didn't look pretty hey :D ::)

Title: Re: SHORTENING SHOCK SPRINGS
Post by: TeeBone on July 31, 2012, 10:35:09 am

Just remember that anytime you shorten a spring, you increase it's rate!

Title: Re: SHORTENING SHOCK SPRINGS
Post by: John Orchard on July 31, 2012, 11:11:21 am

Shortening a spring will make it stiffer, as an example I did the following cuts and changed the rate accordingly on one of my GSXR1000 roadbikes ...

.95kg fork spring, cut one complete coil changed it to a 1.0kg.

8.1kg shock spring, cut half a coil changed rate to 8.6kg.

Use this website for calculations ...

http://www.planetspring.com/pages/compression-spring-calculator-coil-calculator.php