marcusgunby
LIFETIME SPONSOR
- Jan 9, 2000
- 6,450
- 2
Now some of the older members may have followed my ramblings from a few years back and will know when i came here i knew little of suspension other than how to change the oil.Nowdays i feel i have a understanding of suspension but no more-the compliments i get are gratefully recieved but i am only giving eductated guesses alot of the time.
So heres my thinking today.
Most(or nearly all) forks i revalve i end up with softer, or alot softer valving-now this is also using low to medium midvalve lift so its not a straight comparison.However as alot of riders complain of bottoming on std forks i struggle to see how when i lighten the valving it doesnt compromise bottoming(they dont generally complain of bottoming)so im thinking although std damping/valving will make a fork/shock bottom less it isnt as big a difference as i would expect.So does the springs and airgap play a much bigger role as long as we have a resonable amount of damping.
Also do we get to a stage where more shims eg on a base valve makes little or no difference?i get the impression some std stacks must hardly open at all-and this is proved by the debris caught in the piston-its very small sometimes and yet doesnt get flushed away.I know gold valves have some incredibly stiff stacks but they have a wide piston hole so this offsets it.
The CR125 base valve(2000) is unreal stiff considering it has 3.5mm piston ports.
here it is(this is what zenith found today)
24.1(13)
22.1(2)
20.1(2)
18.1(2)
16.1
14.1
11.25
now i assume this has the typical zero lift midvalve,so what im thinking is, what would anyone do if a rider wanted it stiffer(dont assume im after tuning advice as no one has ever asked me this)
any ones thoughts??
So heres my thinking today.
Most(or nearly all) forks i revalve i end up with softer, or alot softer valving-now this is also using low to medium midvalve lift so its not a straight comparison.However as alot of riders complain of bottoming on std forks i struggle to see how when i lighten the valving it doesnt compromise bottoming(they dont generally complain of bottoming)so im thinking although std damping/valving will make a fork/shock bottom less it isnt as big a difference as i would expect.So does the springs and airgap play a much bigger role as long as we have a resonable amount of damping.
Also do we get to a stage where more shims eg on a base valve makes little or no difference?i get the impression some std stacks must hardly open at all-and this is proved by the debris caught in the piston-its very small sometimes and yet doesnt get flushed away.I know gold valves have some incredibly stiff stacks but they have a wide piston hole so this offsets it.
The CR125 base valve(2000) is unreal stiff considering it has 3.5mm piston ports.
here it is(this is what zenith found today)
24.1(13)
22.1(2)
20.1(2)
18.1(2)
16.1
14.1
11.25
now i assume this has the typical zero lift midvalve,so what im thinking is, what would anyone do if a rider wanted it stiffer(dont assume im after tuning advice as no one has ever asked me this)
any ones thoughts??