gavo Posted December 12, 2009 Share Posted December 12, 2009 Ok I've searched but only had partial sucess, soooo who can tell me the stock spring rates on the 2001 mandello marz front end and sach rear end. I did find one reference to the fork springs being .6 kg/mm Link to comment Share on other sites More sharing options...
Greg Field Posted December 12, 2009 Share Posted December 12, 2009 Ask Ratch. He'll write a 3,000-page screed on it. Link to comment Share on other sites More sharing options...
docc Posted December 12, 2009 Share Posted December 12, 2009 Yeah : .6 seems right. I think I pumped mine up to .9 or 1.0 (I can't remember) with a nice improvement. Now that I've put on another stone-and-a-half, I ought to trade up springs again or give up the Stout. Link to comment Share on other sites More sharing options...
dlaing Posted December 12, 2009 Share Posted December 12, 2009 FWIW I have guestimated the front Marz springs to be between .6 and .7. 0.6 could certainly be right, but I'd guess .65 The Sachs is very likely between 350 and 450#/inch. I'd guess about 425. Link to comment Share on other sites More sharing options...
luhbo Posted December 12, 2009 Share Posted December 12, 2009 ... I think I pumped mine up to .9 or 1.0 (I can't remember) with a nice improvement. .... You've the guts to share how you've done that? Hubert Link to comment Share on other sites More sharing options...
Tom M Posted December 14, 2009 Share Posted December 14, 2009 Ok I've searched but only had partial sucess, soooo who can tell me the stock spring rates on the 2001 mandello marz front end and sach rear end. I did find one reference to the fork springs being .6 kg/mm The factory springs in my 2002 Marzocchi were a little over .8 kg/mm according to the measurements I took when I had my forks apart. That agreed with what Traxxion Dynamics said they measured on their donor bike. Apparently the earlier 'zokes had softer springs. I'm happy with the set of 1.05kg/mm springs that I bought from TD. FWIW here's my fork spring thread from a while back: http://www.v11lemans.com/forums/index.php?...xxion&st=15 Link to comment Share on other sites More sharing options...
gavo Posted December 15, 2009 Author Share Posted December 15, 2009 Thanks guys but what I'm really after now is the rear spring rate Link to comment Share on other sites More sharing options...
docc Posted December 20, 2009 Share Posted December 20, 2009 You've the guts to share how you've done that? Hubert Hmm, that might be a bit of that nifty Deutsch humor , but otherwse, there is this thread on the forks: Fork Woes Link to comment Share on other sites More sharing options...
antonio carroccio Posted December 20, 2009 Share Posted December 20, 2009 Ratch or Pete Link to comment Share on other sites More sharing options...
docc Posted December 22, 2009 Share Posted December 22, 2009 Ratch or Pete Is this a new poll? Link to comment Share on other sites More sharing options...
luhbo Posted December 22, 2009 Share Posted December 22, 2009 Hmm, that might be a bit of that nifty Deutsch humor .... No, no. Just not the most correct sentence ever. It was meant as a question only, more or less. I was interested what sort of "nice improvement" pu(i)mped your springs from 0.6 up to 1.0 . Hubert Link to comment Share on other sites More sharing options...
Guest ratchethack Posted December 23, 2009 Share Posted December 23, 2009 OEM Spring rates 2000 short frame “Extremely Twitchy” Sport OEM Sachs shock spring Wire Diameter, .436" Coil Diameter (center to center), 2.712" Number of Free Coils, 5 [calc] 532 pounds per inch (93 N/mm). OEM Marzocchi 040 fork springs Wire Diameter, .176" Coil Diameter (center to center), 1.193" Number of Free Coils, 22.6 [calc] 36 pounds per inch (.64 kg/mm). SPRING RATE CALCULATOR SOURCE: http://guzzitech.com/springrate.html Link to comment Share on other sites More sharing options...
gavo Posted December 24, 2009 Author Share Posted December 24, 2009 Thanks ratchet the calculator is very helpful. I get 9.5kg/mm Link to comment Share on other sites More sharing options...
dlaing Posted December 24, 2009 Share Posted December 24, 2009 OEM Sachs shock spring [calc] 532 pounds per inch (60 Nm).[/indent] Something is wrong with those measurements or calculations. FWIW 532 # per inch is about 90 N/mm or I guess a 0.9Nm, but I thought Nm is for torque, so not sure if it converts. When I went from the OEM spring to a 475 # spring, my laden sag decreased, not as much as I had hoped, but it did decrease, so I am surprised that you measured 532# Perhaps you did not remove the thickness of the paint on the spring from the measurement??? Link to comment Share on other sites More sharing options...
luhbo Posted December 24, 2009 Share Posted December 24, 2009 ...Perhaps you did not remove the thickness of the paint on the spring from the measurement??? You guys are funny. These things are estimators anyway, not calculators. Happy X-Mas Hubert Link to comment Share on other sites More sharing options...
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