Stiction and Front Forks

  • KZ_Rage
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24 Apr 2006 06:52 #42113 by KZ_Rage
Replied by KZ_Rage on topic Stiction and Front Forks
Springs fatigue and the wonderful world of springs has a little dirty secret. Springs are not close tolerance when it comes to compression strength. Manufacturers of springs rate the compressed strength as a "lot" average. In other words, they make a lot of say 1000 springs the average for the lot might be 100lbs compressed. That doesn't mean the lot is right on the money at 100lbs, nope, it means the average for the production run is 100lbs with no springs greater or less than 5-10% for quality brands and somewhere around 15% percent for cheap ones. That means you could have brand new springs that are as much as 20lbs of difference from side to side. I seriously doubt that Kawasaki paid the extra bucks for certified springs (usually 4 fold the cost). The good news is that difference only really means something for street riders in the last bit of spring travel, most of the compression is closer to same side to side through the first part of the movement.

1979 KZ1000E1 SOLD!
1984 KZ550F2 SOLD!
2006 ZG1000A6F (Totaled)
2001 ZRX1200R (Sold)
2001 Sprint 955i ST (daily rider)

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