Quantcast

Spring rate guidline

Discussion in 'Downhill & Freeride' started by SK6, Oct 11, 2005.

  1. SK6

    SK6 Turbo Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Jul 10, 2001
    Messages:
    7,596
    Location:
    Shut up and ride...
    Whats a good guidline in spring rate selection?

    Maybe a nOOb question, but I honestly would like to know more.

    Thanks.
     

    Please register to disable this ad.

  2. vitox

    vitox Turbo Monkey

    Rep/Likes:
    0 / 1
    Joined:
    Sep 23, 2001
    Messages:
    2,939
    Location:
    Santiago du Chili
    that depends on too many factors, if you post the whole setup you might get a good answer

    basically you need to know
    rider weight
    bike leverage
    linkage progression or not
    shock type
     
  3. preppie

    preppie Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Aug 30, 2002
    Messages:
    379
    Location:
    Europe
    I don't know if you need this spring calculator ?

    just felt like posting it.
     
  4. Kntr

    Kntr Turbo Monkey

    Rep/Likes:
    5 / 20
    Joined:
    Jan 25, 2003
    Messages:
    7,536
    Location:
    Montana
    Spring calcs do NOT work.
     
  5. SK6

    SK6 Turbo Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Jul 10, 2001
    Messages:
    7,596
    Location:
    Shut up and ride...
    Per the recommended web site, the definition is as follows:

    What do the spring rate figures mean?

    The spring rate is the amount of force necessary in pounds to compress the spring one inch. When you order a spring you need to order the right spring rate together with the shock stroke (eg 450 x 2.75)


    Ok, I have 6" of travel up front, 7 in the rear. Currently have a 750 spring. Vanilla R 7.875 I to I x 2.25

    I have lost a total of 36 lbs. which has me at 227lbs, and by next season I will be 200.

    The 750 lbs spring was recommended due to my size.

    From my quick read on the subject, I have a very strong suspicion the current spring is too heavy. The reason for the question is when I get the Avy in the next 4 or so weeks, I want to make sure up front that I get exactly what I need to, insomuch as to minimize hassles down the road because I asked for something I shouldn’t have because I had NO idea what I was talking about.

    So now I wonder what other pertinent information may be required.
     
  6. Castle

    Castle Turbo Monkey

    Rep/Likes:
    5 / 0
    Joined:
    Jun 10, 2002
    Messages:
    1,447
    Location:
    VA
    hey ralph!

    lol, I have to say it, but "just play with it"

    http://www.mojo.co.uk/springcalc.html I've used this one before, and typically just round up.

    Different bike designs like different amounts of sag and Different people like different amounts of sag and feel to there shock, but generally speaking start your sag with about 25% of your travel.

    If you don't have anyone to help, wiggle the shock bumper up the shock piston that way when you sit on the bike you can see how far you are sitting into your travel.

    Terrain and Rider preference have the most to do with shock set up in my opinion

    http://www.foxracingshox.com/fox_tech_center/service_videos.htm check the coil shock sag video, it will help you understand and it applies to most shocks and this is only a general setting, lots of things will play into your shock set up and it will change from time to time probably depending on what you are riding/doing.
     
  7. SK6

    SK6 Turbo Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Jul 10, 2001
    Messages:
    7,596
    Location:
    Shut up and ride...
    Yeah, I figuerd as much. I think the 750 is a bit much. I look forward to getting the Avy.

    if I sell of some of the equipment I have (Musical), I'll probably go the route of a duel crown up front. Thats still bit premature yet........
     
  8. Brian HCM#1

    Brian HCM#1 MMMMMMMMM BEER!!!!!!!!!!

    Rep/Likes:
    5 / 11
    Joined:
    Sep 7, 2001
    Messages:
    31,208
    Location:
    Bay Area, California
    If you're going with the Avy tell Craig your weight, riding style etc and he'll dial it in for you.
     
  9. mandown

    mandown Poopdeck Repost

    Rep/Likes:
    270 / 938
    Joined:
    Jun 1, 2004
    Messages:
    13,416
    Location:
    Transylvania 90210
    you going to fight somebody to the death with that thing? maybe you want a dual crown :p
     
  10. Kntr

    Kntr Turbo Monkey

    Rep/Likes:
    5 / 20
    Joined:
    Jan 25, 2003
    Messages:
    7,536
    Location:
    Montana
    duel vs dual
     
  11. mandown

    mandown Poopdeck Repost

    Rep/Likes:
    270 / 938
    Joined:
    Jun 1, 2004
    Messages:
    13,416
    Location:
    Transylvania 90210
    what i would like is a "do-all" crown that adjusts for every change in the trail. it knows when to resist twisting, when to turn the adjuster knobs for compression and rebound, indicator lights that go off when bolts are loose. you know, a crown that does it all (maybe even pedals for me).
     
  12. SK6

    SK6 Turbo Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Jul 10, 2001
    Messages:
    7,596
    Location:
    Shut up and ride...

    Walk 10 paces and throw........ :D

    Works for me.........

    I should write it 100 times

    :p

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual

    dual dual dual dual dual dual dual dual dual dual


    :D
     
  13. bomberboy11

    bomberboy11 Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Jul 15, 2005
    Messages:
    665
    Location:
    At a computer...duh
    Something tells me you cheated and just copied and pasted a bunch of times....hmmmmmmmmm.
     
  14. SK6

    SK6 Turbo Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Jul 10, 2001
    Messages:
    7,596
    Location:
    Shut up and ride...
    I bet you counted! ;)