KX250F 2013 valving sudgestion

Regional intermediate level

 

OEM shock compression stack :
 
44 0.25
44 0.25
44 0.25
44 0.25
44 0.25
44 0.25
44 0.25
44 0.25
44 0.25
44 0.25
28 0.2
44 0.3
42 0.3
40 0.3
38 0.3
36 0.3
34 0.3
32 0.3
30 0.3
28 0.3
26 0.3
24 0.3
22 0.3
30 0.3
30 0.3
30 0.3
30 0.3
30 0.3
30 0.3
44 5

 

 

I feel like I can softer the HSC a little but run the LSC clicker 8 out

 

I'll dissembly the SFF fork soon too

Edited by DarkCRF
44 0.25x7

28 0.2

44 0.3

42 0.3

40 0.3

38 0.3

36 0.3

34 0.3

32 0.3

30 0.3

28 0.3

26 0.3

24 0.3

22 0.3x3

reb 40.20x4

30.10

40.30  -38 -36-34-32-30-28-26-24  and 1.5mm bleed hole in shock piston

i use also factory conn cadj spring and drill 2.5mm hole on high speed plate.

maxima 3w 10 bar. i use also 5mm longer reservoir cap. i will give u fork stack if need

Thank a lot, I'll come with OEM fork stack soon if you need it

Edited by DarkCRF

ive tested a lot on kxf 250 i have stock stack 13 and 14 thanks

on sff im testing ics 1.4 and 5mm more preload and thats make to fork linear pressure, stock basevalve of your bike is good

on midvalve i use 1,5mm bleedhole and a midvalve stack as that

26.15x6

15.10x....for make float 0.25

i make tapered alloy midvalve collar cause oem shim hurt the alloy and midvalve dont blow off

reb stack stock with 1.5mm hole is a good baseline.

oil level 230 on damp side  330 on spring side. 

on sff im testing ics 1.4 and 5mm more preload and thats make to fork linear pressure, stock basevalve of your bike is good

on midvalve i use 1,5mm bleedhole and a midvalve stack as that

26.15x6

15.10x....for make float 0.25

i make tapered alloy midvalve collar cause oem shim hurt the alloy and midvalve dont blow off

reb stack stock with 1.5mm hole is a good baseline.

oil level 230 on damp side  330 on spring side. 

 

26.15x6

15.10x  ... 

 

So if I understand you use 26mm x .1 (6) and 15mm x .1 ?? no sure to understand this parts

 

Also develop this : i make tapered alloy midvalve collar cause oem shim hurt the alloy and midvalve dont blow off

 

 

Thank you a lot for your help

The 26s are .15 shims and they hitting the base plate so he uses a tapered one to increase deflection of the shims.

i have two-staged the 48mm mv comp. also, i've changed diameter of shims below collar.

 

the 47 sff was one of my best for riders up to 160 lb,  

Edited by GDI70

im riding sff 47 on my crf 250cc

im riding sff 47 on my crf 250cc

Pm me your email and I'll shoot my spec for you to try.

1888448_502338806554646_52524331_n.jpg

Guys,  sorry to revive an old thread, i have just aquired a 2015 kxf 250 and the forks are horrendous. I have revlaved my kyb sss forks on my 450 but i dont really know where to start with these. Do you have any suggestions on stacks to try or other mods?

 

Thanks Andy

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