Anyone have a Trek OCLV Singlespeed?- Mtbr.com
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  1. #1
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    Anyone have a Trek OCLV Singlespeed?

    I am looking into making a super-light-weight singlespeed using a Trek OCLV 9900 frame. Has anyone done this? Is there a magic gear ratio that would work? Any insight would be appreciated.

    Mark

  2. #2
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    I myself have never owned one but i do have 2 friends that have done this and I have also seen at least 2 more. One of the two friends rode his very hard with no problems. The other is also quite happy with his.

    Matt

  3. #3
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    A friend of mine has one...

    he's currently running a Singleator. Not sure about any magic gear ratios.

  4. #4
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    Quote Originally Posted by lucifer
    Just ENO hub it.
    Isn't that Trek frame a road frame?
    If so, wouldn't the ENO hub be the wrong spacing?
    To my understanding, MTB spacing is about 125-135. While road spacing is 110 (I think).

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  5. #5
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    Just ENO hub it.

  6. #6
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    Trek nomenclature

    Quote Originally Posted by STrackMike
    Isn't that Trek frame a road frame?
    If so, wouldn't the ENO hub be the wrong spacing?
    To my understanding, MTB spacing is about 125-135. While road spacing is 110 (I think).

    The OCLV frames with a 5XXX series numbers (or more recently 5.2, 5.9, etc...) are the road frames. The 9XXX series numbers (and 9.8, etc...) are the MTB frames. Road spacing is 126mm (old school) and 130mm today. MTB spacing has progressed from 126mm to 130mm to 135mm (today). Track bikes have 120mm spacing, and BMX bikes and some single speeds designed to use BMX hubs are 110mm. The WI Eccentric ENO hub is available in 126mm, 130mm, and 135mm spacing for all of your SS conversion needs. I'd recommend one of those for your conversion...unless you have the connections to get a pair of horizontal SS track ends re-bonded into your frame.

    Later...

  7. #7
    "Mr. Britannica"
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    Quote Originally Posted by STrackMike
    Isn't that Trek frame a road frame?
    If so, wouldn't the ENO hub be the wrong spacing?
    To my understanding, MTB spacing is about 125-135. While road spacing is 110 (I think).

    current road is 130
    old road is 126
    current mtb is 135
    current track is 120
    old track/BMX is 110
    current front 100
    tandem rear 140-145

  8. #8
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    Quote Originally Posted by bikeny
    I am looking into making a super-light-weight singlespeed using a Trek OCLV 9900 frame. Has anyone done this? Is there a magic gear ratio that would work? Any insight would be appreciated.

    Mark
    i did mine up with one of those eccentric hubs. it weighs 20 lbs. give or take. the trek oclv mtb frames aren't that light. maybe try scott or giant for real light stuff.
    #1 NORBA elite singlespeed racer 30-34 age group

  9. #9
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    Quote Originally Posted by iliketoridebikes
    i did mine up with one of those eccentric hubs. it weighs 20 lbs. give or take. the trek oclv mtb frames aren't that light. maybe try scott or giant for real light stuff.

    I'm really surprised its that heavy. I am pretty sure my fat chance is under 20lbs and its steel.....

  10. #10
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    Quote Originally Posted by lucifer
    Just ENO hub it.
    How did my response, get above yours?

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  11. #11
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    ... and if we just ...

    Quote Originally Posted by Nater
    The OCLV frames with a 5XXX series numbers (or more recently 5.2, 5.9, etc...) are the road frames. The 9XXX series numbers (and 9.8, etc...) are the MTB frames. Road spacing is 126mm (old school) and 130mm today. MTB spacing has progressed from 126mm to 130mm to 135mm (today). Track bikes have 120mm spacing, and BMX bikes and some single speeds designed to use BMX hubs are 110mm. The WI Eccentric ENO hub is available in 126mm, 130mm, and 135mm spacing for all of your SS conversion needs. I'd recommend one of those for your conversion...unless you have the connections to get a pair of horizontal SS track ends re-bonded into your frame.

    Later...
    Cool, learned something new!

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  12. #12
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    Travis Brown Does

    Here's Travis' bike from a few years
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  13. #13
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    Quote Originally Posted by iliketoridebikes
    i did mine up with one of those eccentric hubs. it weighs 20 lbs. give or take. the trek oclv mtb frames aren't that light. maybe try scott or giant for real light stuff.
    Your right, the Scott or Giant are lighter, but I am still trying to stay within a budget! A used OCLV can be had for a good price. The Trek frames, from what I remember, are still pretty light, like 2.9 lbs or something. I was going to use a nice light set of Rolf Propel wheels with the frame and hopefully no tensioner, but if I need one I have a Rennen ready to go.

    Mark

  14. #14
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    Smile

    Quote Originally Posted by bikeny
    Your right, the Scott or Giant are lighter, but I am still trying to stay within a budget! A used OCLV can be had for a good price. The Trek frames, from what I remember, are still pretty light, like 2.9 lbs or something. I was going to use a nice light set of Rolf Propel wheels with the frame and hopefully no tensioner, but if I need one I have a Rennen ready to go.
    Mark

    - The 9900 series were pretty light for the time, sub 3 pound frames.
    The 9800's (like T Browns) are heavier, but not a lot.

    The "Magic" ratio for the 9900 is 34/16, it's slightly tight but will get better w/chain stretch.
    A co-worker/friend at my LBS has one with a sick, custom flamed paint job, New-School XTR cranks, SH 959 pedals, Boone Ring/Cog front & back, Bonty Race X lite wheels, Kenda Karmas, a Fox RLT 80, Easton carbon DH bar, Zero carbon post, EA70 stem, light WTB seat, King headset and it's 17 and 3/4 pounds.

    I'd say that's pretty light.
    Have fun with your project!

  15. #15
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    I did .....

    built up a Trek 9800 carbon frame on a budget (did it with a spacer kit and a surly singulator). I am running a 32x18 on it. I will post pictures tonight when I get home from my ride.
    Never play leap-frog with a unicorn!

  16. #16
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    I had a 9700 with the "magic" gear and no singulator...broke it (my 140 lb butt was all over it)

    Because it didn't have gears Trek wouldn't warrantee it, but they did credit me $100.

    Way to go :S

    Shane

  17. #17
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    Quote Originally Posted by bikeny
    Your right, the Scott or Giant are lighter, but I am still trying to stay within a budget! A used OCLV can be had for a good price. The Trek frames, from what I remember, are still pretty light, like 2.9 lbs or something. I was going to use a nice light set of Rolf Propel wheels with the frame and hopefully no tensioner, but if I need one I have a Rennen ready to go.

    Mark
    2003 trek elite 9.8 frame size XL = 3.8 lbs

    everybody on mtbr thinks their bike is lighter than it really is
    #1 NORBA elite singlespeed racer 30-34 age group

  18. #18
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    Quote Originally Posted by SKullman
    I had a 9700 with the "magic" gear and no singulator...broke it (my 140 lb butt was all over it)

    Because it didn't have gears Trek wouldn't warrantee it, but they did credit me $100.

    Way to go :S

    Shane
    What was the "magic" gear?

  19. #19
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    Quote Originally Posted by iliketoridebikes
    2003 trek elite 9.8 frame size XL = 3.8 lbs

    everybody on mtbr thinks their bike is lighter than it really is
    You are right, the newer 9.8 series frames are heavier, mostly because they changed the chainstays to aluminum to add a disc brake mount, I think. But the older original OCLV frames are around 3 lbs. Anyway, I will post updates when I make some progress.

  20. #20
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    .....

  21. #21
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    Quote Originally Posted by bikeny
    What was the "magic" gear?
    I wish I could remember...I only had it for one summer and that was 2000. Damn I'm old if I can't remember back 5 years

    Shane

  22. #22
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    track ends?

    Quote Originally Posted by SanAnMan
    Here's Travis' bike from a few years

    is that bike retrofitted with track fork ends?

  23. #23
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    Quote Originally Posted by disco
    is that bike retrofitted with track fork ends?

    it's got those giant cog-like things that keep the chain from derailing... he or somebody else had made something similar out of old cds

  24. #24
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    Quote Originally Posted by roadiegonebad
    it's got those giant cog-like things that keep the chain from derailing... he or somebody else had made something similar out of old cds
    no, I mean the dropouts look somewhat horizontal and aftermarket

  25. #25
    brother on a mission
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    Quote Originally Posted by disco
    no, I mean the dropouts look somewhat horizontal and aftermarket
    I read a while back that it is a one off frame for him. They are horizontal drop outs.

  26. #26
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    Quote Originally Posted by Greenfix
    I read a while back that it is a one off frame for him. They are horizontal drop outs.
    Yes they are horizontal, and no you can't get one, no matter how nicely you ask! I read that those cog guide thingies were to keep the chain from derailling. I guess the frame was flexing enough under Travis' huge muscles that the chain would come off at times. But that is just what I read!

    BTW, does anyone know where there are better pictures of that bike? I thought I remember seeing better pictures.

  27. #27
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    My OCLV SS.....

    she is fun. My wife recently took a liking to her and has been taking it for road rides around the neigborhood. Hse tells me she enjoys climbing on the SS. I guess all that watching of Le Tour has sparked her interest....
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  28. #28
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    Not a great bike pic, but a nice action shot of Mr. Brown on the single speed.

    I also like the reverse mullet Travis is running on his bike.

    And here is the story of the discos if anyone is interested.

    I have made a similar set up by using my drive cog sandwich between two spacers and two larger cogs. I did not do it because of any superhuman strength, but because of the flex of a cheap frame and an imperfect chainline.

  29. #29
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    reverse mullet?

    Quote Originally Posted by Greenfix
    Not a great bike pic, but a nice action shot of Mr. Brown on the single speed.

    I also like the reverse mullet Travis is running on his bike.
    reverse mullet?

  30. #30
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    Reverse Mullet - definition

    Quote Originally Posted by disco
    reverse mullet?
    Just read your post, sorry for the delay.

    I did not coin the term, but here it is:

    mullet - disk front, v-brake rear
    reverse mullet - disk rear, v-brake front

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