[fighterkyle]

hey guys, i just bought a Vivid for my 2009 M6. it came with a 300lb spring, i weight 135 pounds, should i get a lighter spring, and if so what weight would be the best. i'm not too clear on how the leverage ratio/spring weight math works out.

thanks

 

[jonKranked]

best reference for this:

http://www.tftunedshox.com/info/spring_calculator.aspx

 

[norbar]

Measure your sag. If its <30% get a ligher spring. If it feels to hard - get a lighter spring. If it feels soft - get softer. It's not really that hard.

Tftuned calc is only for reference as it is not always 100% accurate.

 

[jonKranked]

Tftuned calc is only for reference as it is not always 100% accurate.

absolutely, but it does provide a good estimate of where to start. obviously it doesn't take into account personal preference either.

 

[norbar]

absolutely, but it does provide a good estimate of where to start. obviously it doesn't take into account personal preference either.

I agree but considering he already has a spring he can take the bike for a spin and feel it out and measure sag. I'm pretty sure demo 9 would get his share of flame for a topic like that



btw. Kyle - is that a new shock in an old frame? Unless you used something like the rc4 the springweight should be the same. A bit heavier maybe if you used revox.

 

[jonKranked]

I agree but considering he already has a spring he can take the bike for a spin and feel it out and measure sag.

compare what tft tune gives you against the current spring you have to determine where to go in terms of spring weight.

I'm pretty sure demo 9 would get his share of flame for a topic like that

he had to earn that right.

 

[fighterkyle]

Thanks guys I'm goin with a 250lb spring. The 300 isn't soft enough.