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Wrong spring for DHX? Please help.

mattmtb

Chimp
Jun 9, 2005
18
0
I bought a 05 Yeti AS-X complete early this year. I weigh 210 with gear so I ordered a heavier spring for the shock. The bike came with a Fox DHX 5.0 (8.5 eye - 2.5 shaft) and a 500*2.80 stock spring. I bumped up the weight to a 600*2.55. I was told at the shop that the 2.55 would be a longer spring made for big drops and DH. But after talking to a friend that was told not to use that spring because of the coil binding, I wonder if this is the wrong spring. If the new 2.55 spring is 5/100 of an inch longer than the shaft, I would be screwed after two turns of preload.

I hope you guys understand what I'm trying to say. The shop said that Fox sent the 2.55 for my DHX. But another guy also talked to Fox and said I need a 600*2.8, the length I had to start.

If anybody knows what the heck I'm talking about please respond.

Thanks
 

Spunger

Git yer dumb questions here
Feb 19, 2003
2,258
0
805
Usually if it's a steel spring and you start getting heavier, the length has to stay the same BUT the coil windings become more. Like say on a 400lbs spring you have 8 coil windings, well on a 600lbs spring you might have 10 coil windings and the coil itself might be a hair thicker. You have to keep the spring length the same or else the shock stroke gets messed up. Atleast that's what I found out with 5th element springs.

Never had fox though, just their rear air forks. Last time I checked 2.80 is larger than a 2.55 in stroke length. I'd ask Go-ride or Push industries and see what they say.
 

Hailight

Chimp
Mar 5, 2006
63
0
the pounds tell you how much force (weight) you need to compress it 1", the other number tells you (only for fox springs) how many " you can compress it before the windings hit. so for a 2.75" stroke shock you want a 2.80 spring... hope that helps