Does room on the rear SP make longer travel?

Discussion in 'The Lounge' started by BIGHITR, Dec 2, 2010.

  1. BIGHITR

    BIGHITR WINNING!

    Rep/Likes:
    0 / 0
    Joined:
    Nov 14, 2007
    Messages:
    1,093
    Location:
    Maryland, east coast.
    I noticed my single pivot rear had a full half inch to drop down further when I took the shock off to run a brake line. I take it that half inch at the shock means if I got a longer shock eye to eye by a half inch, that translates to longer rear wheel travel by possibly a full inch more?
     
    #1 -   Dec 2, 2010

    Please register to disable this ad.

  2. moff_quigley

    moff_quigley Why don't you have a seat over there?

    Rep/Likes:
    0 / 1
    Joined:
    Jan 27, 2005
    Messages:
    4,434
    Location:
    Poseurville
    :popcorn:
     
    #2 -   Dec 2, 2010
  3. HAB

    HAB Chelsea from Seattle

    Rep/Likes:
    78 / 782
    Joined:
    Apr 28, 2007
    Messages:
    10,383
    Location:
    Seattle
    Sure. It'll also make your bike retardedly steep, with a monster high BB.
     
    #3 -   Dec 2, 2010
  4. BIGHITR

    BIGHITR WINNING!

    Rep/Likes:
    0 / 0
    Joined:
    Nov 14, 2007
    Messages:
    1,093
    Location:
    Maryland, east coast.
    Not sure what you mean by steep. A lot of people say don't mess with a bikes original geometry, but a lot of guys put on a longer fork and don't seem to have a prob. I put a 1 inch longer fork on so it's now sitting up 1 inch higher in the front. Currently I have a Fox DHX 4.0 OEM on it, it's 2.80 x 450lbs w/8.5 inch eye to eye. If I put lets say a Fox DHX 5.0 3.25 x 500lbs, 9 inch eye to eye, would that not set my bike back to the original factory level angle?

    I actually have 9.25 inches of room but if I could get on extra inch of travel on the rear axle, I'd be cool with it.

    As to bb clearance, I like the higher clearance my fork got me, so I would like high clearance. Would that not be a benefit?
     
    #4 -   Dec 2, 2010
    Last edited: Dec 2, 2010
  5. BIGHITR

    BIGHITR WINNING!

    Rep/Likes:
    0 / 0
    Joined:
    Nov 14, 2007
    Messages:
    1,093
    Location:
    Maryland, east coast.
    ha ha ha.
     
    #5 -   Dec 2, 2010
  6. demo 9

    demo 9 Turbo Monkey

    Rep/Likes:
    9 / 45
    Joined:
    Jan 31, 2007
    Messages:
    5,924
    Location:
    north jersey
    higher BB=higher COG=monster truck handling
     
    #6 -   Dec 2, 2010
  7. BIGHITR

    BIGHITR WINNING!

    Rep/Likes:
    0 / 0
    Joined:
    Nov 14, 2007
    Messages:
    1,093
    Location:
    Maryland, east coast.
    So raising the bike by one inch in front and rear that it was designed would make that much of a difference?

    I went from a 5 inch XC bike to a 7 inch DH/FR bike that I only added an 8 inch fork to and to be quite frank with you, it handles like a limo because it's a longer wheelbase. It handles nice actually.
     
    #7 -   Dec 2, 2010
  8. demo 9

    demo 9 Turbo Monkey

    Rep/Likes:
    9 / 45
    Joined:
    Jan 31, 2007
    Messages:
    5,924
    Location:
    north jersey
    the longer fork may raise the BB slightly, but... more importantly, it slacks out your HA (good) and gives you a longer WB (also good) What you would be doing is keeping the stock geo (not a bad thing) but you would raise your BB (bad) most modern new bikes are dropping the BB by the year, i do NOT recommend you do it, it might work, maybe you wont like it, but an inch in the BB is alot. Keep in mind an inch separates most sizes on the TT of bikes.

    Its your bike and your call, but essentially your throwing your handling away.

    Most "modern" DH bikes rock 64 or slacker (really like 63 and slacker) with 13.5 or less BB heights. Thats not to say that the 65 14" they sold 2-3 years ago is unrideable, but the designs are changing for the better, you dont race an autocross with a lifted car, you LOWER it.
     
    #8 -   Dec 2, 2010
  9. BIGHITR

    BIGHITR WINNING!

    Rep/Likes:
    0 / 0
    Joined:
    Nov 14, 2007
    Messages:
    1,093
    Location:
    Maryland, east coast.
    I don't race. Just ride for fun.

    My bike is a 17.5 frame but it's a DH/FR so it's pretty big. Came as a seven inch bike front and rear travel. I bought an 8 inch fork day one. Currently with the 8 inch fork I bought, my bike sits at 13.5 inch BB with a 45 inch front to rear axle distance.

    What did you mean by 64 or slacker and TT? Don't know those short cuts? Head angle?
     
    #9 -   Dec 2, 2010
    Last edited: Dec 2, 2010
  10. demo 9

    demo 9 Turbo Monkey

    Rep/Likes:
    9 / 45
    Joined:
    Jan 31, 2007
    Messages:
    5,924
    Location:
    north jersey
    64 is your HeadAngle (ranges from like 68-60) Top Tube=TT
     
  11. Wumpus

    Wumpus makes avatars better

    Rep/Likes:
    29 / 153
    Joined:
    Dec 25, 2003
    Messages:
    8,170
    Location:
    Six Shooter Junction
    So you are only increasing the eye to eye by 1/2" but the effective travel by over an inch*? Planning on moving the seattube too?



    *assuming the leverage is 2.5 --7" / 2.80" = 2.5
     
  12. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    358 / 3,263
    Joined:
    Nov 10, 2005
    Messages:
    52,323
    Location:
    media blackout
    1" more of fork travel does not necessarily mean your bikes geometry is going to change. That depends on the difference in A2C....
     
  13. was?

    was? Monkey

    Rep/Likes:
    4 / 4
    Joined:
    Mar 9, 2010
    Messages:
    257
    Location:
    Dresden, Germany
    7.875" x 2.25" is what you should try.
     
  14. C.P.

    C.P. Monkey

    Rep/Likes:
    6 / 8
    Joined:
    Jan 18, 2004
    Messages:
    558
    Location:
    SouthEastern Massachusetts
    Gotta weigh your pro's & cons...so I pose a quick quiz, what might be a con with this setup? (not mine...)

     
  15. C.P.

    C.P. Monkey

    Rep/Likes:
    6 / 8
    Joined:
    Jan 18, 2004
    Messages:
    558
    Location:
    SouthEastern Massachusetts
    1st hint, not the red tires...although, on second thought...
     
  16. clarkenstein

    clarkenstein Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Nov 28, 2008
    Messages:
    259
    total guesses here, but, first seat angle is a little whack, pedalling would blow. chainline just looks funny with no BB drop. BB is WAY high, so OTB possibilities are higher (i have experienced this, it sucks).

    i threw a BETD link on a 2002 stumpjumper back in the day to give myself an extra inch of travel on the bike. i also popped on a longer fork to offset the steepness. felt like butter for my first impression, but once i went to a technical place to ride, i hated the BB height. i couldn't adjust to the height and kept going OTB. felt like i was trying to ride a pennyfarthing through rockgardens. ok, maybe not that bad but i got rid of the bike i disliked it so much.
     
  17. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    358 / 3,263
    Joined:
    Nov 10, 2005
    Messages:
    52,323
    Location:
    media blackout
    quote of the day right here, my friends.
    :rofl:
     
  18. mattmatt86

    mattmatt86 Turbo Monkey

    Rep/Likes:
    5 / 10
    Joined:
    Feb 9, 2005
    Messages:
    5,390
    Location:
    Bleedmore, Murderland
    Trick Question: Nothing! Huck Away!
     
  19. w00dy

    w00dy In heaven there is no beer

    Rep/Likes:
    5 / 22
    Joined:
    Jun 18, 2004
    Messages:
    3,418
    Location:
    that's why we drink it here
    RAAAAAAAAAAAAAARRRRRRRRRRRR!!

     
  20. JustMtnB44

    JustMtnB44 Monkey

    Rep/Likes:
    3 / 31
    Joined:
    Sep 13, 2006
    Messages:
    743
    Location:
    Pittsburgh, PA
    :eek: ^ I almost spit food on my monitor when I burst out laughing at that thing. I have seen it before, but thanks for the reminder. I like how they realized the need for moar shimz right off the bat and just added a second rear shock to take care of that issue. :rofl:
     
  21. demo 9

    demo 9 Turbo Monkey

    Rep/Likes:
    9 / 45
    Joined:
    Jan 31, 2007
    Messages:
    5,924
    Location:
    north jersey


    BIGHITR's bike :rofl:
     
  22. mandown

    mandown Poopdeck Repost

    Rep/Likes:
    265 / 901
    Joined:
    Jun 1, 2004
    Messages:
    13,340
    Location:
    Transylvania 90210
    Shocked you haven't heard it enough already to know "length isn't what matters."
     
  23. demo 9

    demo 9 Turbo Monkey

    Rep/Likes:
    9 / 45
    Joined:
    Jan 31, 2007
    Messages:
    5,924
    Location:
    north jersey
    "its not the size its how you use it" Hcor.net
     
  24. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    358 / 3,263
    Joined:
    Nov 10, 2005
    Messages:
    52,323
    Location:
    media blackout
    your sig is entirely too long.
     
  25. BIGHITR

    BIGHITR WINNING!

    Rep/Likes:
    0 / 0
    Joined:
    Nov 14, 2007
    Messages:
    1,093
    Location:
    Maryland, east coast.
    The bike came as 7 inch front and rear. I figured if I put it to 8 and 8 it wouldn't matter that much. Only thing I'd have to check is chain hitting the derailer in certain gears. Other than that, I go over a lot of logs and I like the ground clearance. Just thought it would be right to level it back out again when I noticed the frame can go back an extra .75 inch. I only thought about putting it back a half inch, leaving a full .25 inch between the seat post tube and the rear single pivot.
     
  26. norbar

    norbar Turbo Monkey

    Rep/Likes:
    26 / 247
    Joined:
    Jun 7, 2007
    Messages:
    9,293
    Location:
    Warsaw :/
    I wrote them an email. They claimed they use 2 pararell shocks for better leverage ratio. Well 2 8.5'' shocks or smaller. With 10.5s they would be in the v10 area... Silly.

    BIGHITR - What bike do you currently use if we may know?
     
  27. mandown

    mandown Poopdeck Repost

    Rep/Likes:
    265 / 901
    Joined:
    Jun 1, 2004
    Messages:
    13,340
    Location:
    Transylvania 90210
    If you do this, make sure the stroke is longer. More e2e from the shock body won't give more travel.
     
    #27 -   Dec 2, 2010
    Last edited: Dec 2, 2010
  28. w00dy

    w00dy In heaven there is no beer

    Rep/Likes:
    5 / 22
    Joined:
    Jun 18, 2004
    Messages:
    3,418
    Location:
    that's why we drink it here
    So I has a question. Is this a high pivot bike?
     
  29. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    358 / 3,263
    Joined:
    Nov 10, 2005
    Messages:
    52,323
    Location:
    media blackout
    how would you even ride that thing?
     
  30. ridiculous

    ridiculous Turbo Monkey

    Rep/Likes:
    5 / 0
    Joined:
    Jan 18, 2005
    Messages:
    2,917
    Location:
    MD / NoVA
    you cant park that animal here.
     
  31. dante

    dante Unabomber

    Rep/Likes:
    11 / 8
    Joined:
    Feb 13, 2004
    Messages:
    8,998
    Location:
    looking for classic NE singletrack
    Lol at the tags....
     
  32. DhDork

    DhDork Monkey

    Rep/Likes:
    4 / 0
    Joined:
    Mar 30, 2007
    Messages:
    356
    Location:
    Hell, AZ


    :rofl::rofl:
     
  33. Rip

    Rip Mr. Excitement

    Rep/Likes:
    6 / 1
    Joined:
    Feb 3, 2002
    Messages:
    7,348
    Location:
    Over there somewhere.
     
  34. BIGHITR

    BIGHITR WINNING!

    Rep/Likes:
    0 / 0
    Joined:
    Nov 14, 2007
    Messages:
    1,093
    Location:
    Maryland, east coast.
    Assh/les will be assh/les... It's amazing the childishness of those that run this site and their same few friends that always attack my posts. They think they're smug and witty by their attacks but, show childishness and a failure to grow up. Here I asked a legitimate technical question and the same few come in and do what they normally do because they think their insults are witty. These types are the type that would never open their mouth in person to avoid the chance for any harmful conflict, just on forums where they can easily bully at no painful expense and join together in group mentality to gain a feeling of self confidence, a feeling of safety in numbers and feel a sense of self worth through feelings of being part of a gang that will have their back if anyone attacks back. The fact they allow the same few to attack and post neg rep, yet pull my ability to post it back in response shows their contempt and wish to continue to bully without consequence. It's a "safe zone" knowing they can bully as much as they want and receive no challenge back. This is caused by their psychological feelings of inadequacy in life that manifests itself inside their subconscious and thus lashing out at people gives them feelings of self worth, a false sense of dominant pride and a feeling of meaningfulness. Kind of like fat people that are upset with the way they look, yet they keep eating because the immediate gratification they get from the food releases chemicals in their body that gives their mind good feelings for a few moments when they satisfy their weakness. When they feel better about themselves they can go off line and back out into society and feel somewhat confident to cope with some of their real life problems feeling a sense of superiority through attacking the weak, or in this case, those they don't have to deal with in actual real life in front of them in a confrontation directly. That alleviates the possibility of having to answer for their actions which is a type of fear of having to show what could possibly be what they already know, they truly have no dominance over anyone and thus that makes them experience feelings of inferiority which is the root cause of all of it. It's nothing more than typical online cyber bullying. Their attacks are pusillanimous at best.
     
    #34 -   Dec 3, 2010
    Last edited: Dec 3, 2010
  35. trib

    trib not worthy of a Rux.

    Rep/Likes:
    9 / 92
    Joined:
    Jun 22, 2009
    Messages:
    1,171
    Dude, you asked the question, were told it was a dumb idea and then continued to push the idea, despite many, many, many posts telling you just how bad an idea it is. There is only so long someone can ask a stupid question before the response degenerates to fail pictures.

    p.s. don't get a longer travel shock, it would be stupid
     
  36. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    358 / 3,263
    Joined:
    Nov 10, 2005
    Messages:
    52,323
    Location:
    media blackout
    tl;dr

     
  37. demo 9

    demo 9 Turbo Monkey

    Rep/Likes:
    9 / 45
    Joined:
    Jan 31, 2007
    Messages:
    5,924
    Location:
    north jersey
    We told you it was a bad idea, you argued, we told u it was still a bad idea,your argued-we even explained it. At this point your asking for it. If you dont believe anybody here, do it, its not my bike, but dont sit on here crying because we dont agree with you. I dont care what you do, as far as im concerned, id like to see you flip out with more SAT words.

    Hit jon with some rep for me somebody
     
  38. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    358 / 3,263
    Joined:
    Nov 10, 2005
    Messages:
    52,323
    Location:
    media blackout
    what we used here is very common in the mountain biking world. It's called the "bigger hammer" tactic.

    We tried doing it the right way. Like using your splined wrench to get your stuck BB cup out.

    That didn't work.

    We tried be a little more assertive. Like tapping on the wrench with a rubber mallet.

    That still didn't work.

    So we had to dig out the breaker bar and the 5lb mallet. In the end it got the job done, but we stripped the threads on the frame. Except in this case the frame started crying.
     
  39. IH8Rice

    IH8Rice I'm Mr. Negative! I Fail!

    Rep/Likes:
    62 / 475
    Joined:
    Aug 2, 2008
    Messages:
    24,855
    Location:
    Im over here now
    you seem to like the whole butt hurt thing huh?
     
  40. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    358 / 3,263
    Joined:
    Nov 10, 2005
    Messages:
    52,323
    Location:
    media blackout
    you seem to like pointing this out every time i make an ass related comment. :rolleyes: