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170mm DC Fork Help/Question

Axis

Monkey
Jun 9, 2004
471
0
I am looking for help getting the correct spring weight for myself so bear
with me. With Gear I am 220 pounds. I get 35% sag and major brake dive
now.

I pulled my 02 Jr T's apart and found that there are 2 springs in each leg.
I am assuming that one is for a 100mm fork and the other is for a 70mm fork.

Ok the 100mm is red and the 70mm is green.

Supposedly the 100mm red is for a 170 to 205 pound rider.
Supposedly the 70mm is for a 120 to 155 pound rider.

If I take the mid point of both springs and divide by 2 I get a 161 pound
average rider weight,

Are my calculations/assumptions correct?

Is it better to upgrade the 70mm or 100mm springs?

Which should be heavier, the 70mm or the 100mm springs? Does it matter?
Anyone around my weight have opinions?

TIA
 

go-ride.com

Monkey
Oct 23, 2001
548
6
Salt Lake City, UT
I had an '02 Super T (nicer damping than the Jr. T) and I had to run the heaviest springs top and bottom. I only weigh 175 with gear, but race in the semi-pro class. IMO 35% sag for a fork in the parking lot is too much. Keep in mind that downhill is just that...downhill. Once you get pointed downhill that 35% sag becomes 50% really quickly. I find that I like the back of my bike at about 35% and the front at 20% to 25% depending on the quality of damping.