YZ125X did not run fork springs?

[Brian Watson]

IIRC.. when we took the springs out of the Ceriani's in my 1974 250 KTM..( looking for more travel)..we ran about 15 psi.. maybe 20 not sure.. it's been a while..!!

[John Orchard]

50 is very high though isn't it John?

50psi gave the resistance needed, KX420 springs going in now, that an 15psi until l can find some cheap .44kg/mm springs.

[Rossvickicampbell]

in the couple of bikes I have had with air forks or similar setups I can't remember running that high John?

[John Orchard]

in the couple of bikes I have had with air forks or similar setups I can't remember running that high John?

No, the YZ125X was the only bike not running fork springs, forks without springs need higher pressures, all other late 70's bikes used light springs with air assist.

[LWC82PE]

Yeah its the top chamber in the canisters that runs the higher pressures, not the main one that's sealed by the fork seals.

[Iain Cameron]

The lower chamber runs 22.75 to 35.56 psi where as the high pressure chamber runs 45.51 to 71.11 psi on the 125x