Yet another "look at my first SS post" :D- Mtbr.com
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  1. #1
    WHAT HAS SCIENCE DONE!?!
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    Yet another "look at my first SS post" :D

    Thanks to the help of "Captain Crash", my Fisher is now a singlespeed. Haven't ridden this bike in a good year and a half until now. It started life as a 99 X-Caliber but the frame cracked last April due to loads from the rear brake. Fisher promptly sent out a replacement, an 04 Big Sur. Brake design issue has been fixed on this one. Not much remains of the original bike, fork was replaced with an 01 X-Fly 100, pedals are first-run Carbon Atacs from 1997. Wheels are CrossRoc USTs, and tires are...needing to be replaced

    Anyway, here are the pics (unfortunately from a phone):



    Went with 32/18 gearing & no tensioner, which worked perfectly on Captain Crash's Fisher with the same chainstay length. On this one though the chain has a bit too much slack to it. May try 38/20 which appears to be another workable ratio that will take a bit of slack out, though it'll be a 8% or so increase in ratio. Would be curious to know what you all think of the chain tension based on the photos.

    First ride (quick Whiting Ranch loop in SoCal) went well for the most part. I did drop the chain on the second technical thing I hit (which was actually not even in the park ) Was on flat ground coasting over a couple small rocks transitioning to a few feet of uphill that required pedaling and it fell off the cog (chain was slack going over rocks and then abruptly under tension). Issue never presented itself for the remainder of the ride, but I'm guessing it will happen again under similar circumstances, perhaps moreso as the chain stretches. Only difference between my setup and Captain Crash's bike is that I have a SRAM singlespeed chain and he has an 8-speed (same ratios and CS length).

    So far I love it. I'd previously fallen out of love with XC mountain biking after getting a Gemini...this makes the XC trails fun again!
    --Tod

    "I don't pretend to understand Brannigan's law; I merely enforce it."

  2. #2
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    There is nothing like a single speed to put the fun back into those "same old trails" again..

    Looks like you may need to get some tension into that chain.

    However, try to do it after you decide on your gearing. 32 / 20 is a good allround gear ratio.


    Have fun.....


    R.
    It is inevitable ...

  3. #3
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    I 20t might make it to tight. Look into a half link if the 20t doesn't work.

  4. #4
    WHAT HAS SCIENCE DONE!?!
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    Thanks for the info! I think I'm actually going to try using a 38T ring (friend has one that came stock on an SS crankset and doesn't need it) and either a 21 or 22 cog.

    38/21 will take out one tooth worth of slack (adding two full links) and give me roughly the same ratio.
    --Tod

    "I don't pretend to understand Brannigan's law; I merely enforce it."

  5. #5
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    Quote Originally Posted by Skygrounder
    Went with 32/18 gearing & no tensioner, which worked perfectly on Captain Crash's Fisher with the same chainstay length. On this one though the chain has a bit too much slack to it. May try 38/20 which appears to be another workable ratio that will take a bit of slack out, though it'll be a 8% or so increase in ratio. Would be curious to know what you all think of the chain tension based on the photos.

    So far I love it. I'd previously fallen out of love with XC mountain biking after getting a Gemini...this makes the XC trails fun again!
    If they're really the same CS then you should try a new chain. Could be all you need.

    P.S. 38/21 way off, 38/22 (half-link) will be even looser than 32/18.
    Last edited by pacman; 10-11-2005 at 02:54 PM. Reason: ps

  6. #6
    WHAT HAS SCIENCE DONE!?!
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    They're *supposed* to be the same length Chainstay, at least according to fisherbikes.com (every genesis made in recent times has a 411mm cs according to that site). The only thing I can think of is that Fisher is quoting "effective chainstay length". My bike is a 17.5 and CaptCrash's is a 19. Given that BB height is the same on both bikes I'd think this would be irrelevant though. I've yet to actually measure his bike versus mine though.

    The chain is the only certain difference, his is an 8spd SRAM, mine is a new SRAM SS chain.

    I don't mind going up 0.03 in ratio for 38/21 if that's the optimum (or going down as much if 38/22 works better), I eventually want to work up to a 2:1 ratio if my knees will handle it. I've heard some issues with half links failing, and I'm very concerned about the idea of breaking....whenver I use a part that has such an issue I always seem to be one of the group who gets to experience it firsthand.

    Quote Originally Posted by pacman
    If they're really the same CS then you should try a new chain. Could be all you need.

    P.S. 38/21 way off, 38/22 (half-link) will be even looser than 32/18.
    --Tod

    "I don't pretend to understand Brannigan's law; I merely enforce it."

  7. #7
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    Make sure it's a new chain, then

    Quote Originally Posted by Skygrounder
    They're *supposed* to be the same length Chainstay, at least according to fisherbikes.com (every genesis made in recent times has a 411mm cs according to that site). The only thing I can think of is that Fisher is quoting "effective chainstay length". My bike is a 17.5 and CaptCrash's is a 19. Given that BB height is the same on both bikes I'd think this would be irrelevant though. I've yet to actually measure his bike versus mine though.

    The chain is the only certain difference, his is an 8spd SRAM, mine is a new SRAM SS chain.

    I don't mind going up 0.03 in ratio for 38/21 if that's the optimum (or going down as much if 38/22 works better), I eventually want to work up to a 2:1 ratio if my knees will handle it. I've heard some issues with half links failing, and I'm very concerned about the idea of breaking....whenver I use a part that has such an issue I always seem to be one of the group who gets to experience it firsthand.
    (I've had SRAM PC-1's break on me, what are your using?)

    If it's a new chain, you can get an accurate number for the CS. Press down in the middle of the top run of the chain taking up all the slack. Measure how far it is below a perfectly straight chain - hold a yardstick across the top of the chainring and cog.

    Take the CS that is ideal for your magic gear. For your 32/18 the perfect CS is 16.713".

    Subtract from that the correction given by this table, result is your CS.

    <TABLE style="WIDTH: 106pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=141 border=0 x:str><COLGROUP><COL style="WIDTH: 48pt" width=64><COL style="WIDTH: 58pt; mso-width-source: userset; mso-width-alt: 2816" width=77><TBODY><TR style="HEIGHT: 18.75pt" height=25><TD class=xl26 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; WIDTH: 48pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 18.75pt; BACKGROUND-COLOR: transparent" width=64 height=25>SAG</TD><TD class=xl27 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; WIDTH: 58pt; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" width=77>Correction</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.125">1/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="1E-3">0.001</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.25" x:fmla="=A2+0.125">1/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="4.0000000000000001E-3">0.004</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.375" x:fmla="=A3+0.125">3/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="8.0000000000000002E-3">0.008</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.5" x:fmla="=A4+0.125">1/2</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="1.4999999999999999E-2">0.015</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.625" x:fmla="=A5+0.125">5/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="2.3E-2">0.023</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.75" x:fmla="=A6+0.125">3/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="3.4000000000000002E-2">0.034</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.875" x:fmla="=A7+0.125">7/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="4.5999999999999999E-2">0.046</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1" x:fmla="=A8+0.125">1 </TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num>0.060</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.125" x:fmla="=A9+0.125">1 1/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="7.5999999999999998E-2">0.076</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.25" x:fmla="=A10+0.125">1 1/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="9.2999999999999999E-2">0.093</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.375" x:fmla="=A11+0.125">1 3/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.113">0.113</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.5" x:fmla="=A12+0.125">1 1/2</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.13400000000000001">0.134</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.625" x:fmla="=A13+0.125">1 5/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.157">0.157</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.75" x:fmla="=A14+0.125">1 3/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.182">0.182</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.875" x:fmla="=A15+0.125">1 7/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.20899999999999999">0.209</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="2" x:fmla="=A16+0.125">2 </TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.23699999999999999">0.237</TD></TR></TBODY></TABLE>

  8. #8
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    Bump

    Quote Originally Posted by pacman

    If it's a new chain, you can get an accurate number for the CS. Press down in the middle of the top run of the chain taking up all the slack. Measure how far it is below a perfectly straight chain - hold a yardstick across the top of the chainring and cog.

    Take the CS that is ideal for your magic gear. For your 32/18 the perfect CS is 16.713".

    Subtract from that the correction given by this table, result is your CS.

    <TABLE style="WIDTH: 106pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=141 border=0 x:str><COLGROUP><COL style="WIDTH: 48pt" width=64><COL style="WIDTH: 58pt; mso-width-source: userset; mso-width-alt: 2816" width=77><TBODY><TR style="HEIGHT: 18.75pt" height=25><TD class=xl26 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; WIDTH: 48pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 18.75pt; BACKGROUND-COLOR: transparent" width=64 height=25>SAG</TD><TD class=xl27 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; WIDTH: 58pt; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" width=77>Correction</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.125">1/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="1E-3">0.001</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.25" x:fmla="=A2+0.125">1/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="4.0000000000000001E-3">0.004</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.375" x:fmla="=A3+0.125">3/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="8.0000000000000002E-3">0.008</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.5" x:fmla="=A4+0.125">1/2</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="1.4999999999999999E-2">0.015</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.625" x:fmla="=A5+0.125">5/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="2.3E-2">0.023</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.75" x:fmla="=A6+0.125">3/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="3.4000000000000002E-2">0.034</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="0.875" x:fmla="=A7+0.125">7/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="4.5999999999999999E-2">0.046</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1" x:fmla="=A8+0.125">1 </TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num>0.060</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.125" x:fmla="=A9+0.125">1 1/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="7.5999999999999998E-2">0.076</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.25" x:fmla="=A10+0.125">1 1/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="9.2999999999999999E-2">0.093</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.375" x:fmla="=A11+0.125">1 3/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.113">0.113</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.5" x:fmla="=A12+0.125">1 1/2</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.13400000000000001">0.134</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.625" x:fmla="=A13+0.125">1 5/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.157">0.157</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.75" x:fmla="=A14+0.125">1 3/4</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.182">0.182</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="1.875" x:fmla="=A15+0.125">1 7/8</TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.20899999999999999">0.209</TD></TR><TR style="HEIGHT: 15pt" height=20><TD class=xl25 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" align=right height=20 x:num="2" x:fmla="=A16+0.125">2 </TD><TD class=xl24 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; BACKGROUND-COLOR: transparent" align=right x:num="0.23699999999999999">0.237</TD></TR></TBODY></TABLE>
    If you look at the table, if you can crudely measure the sag within +/- 1/8" then you have determined the CS with an accuracy of +/- .004" (within the first 1/2" of sag, sensitivity drops with larger sag).

  9. #9
    you said.. Member
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    Quote Originally Posted by Skygrounder

    Those pics so do not do it justice, that paint job is awesome. And you parts match like it was done by "Queer Eye for the Single Speed Guy".

    As for the gearing, I think we should swap the chain out first, it is the easiest thing to try.
    This is my signature. There are many like it but this one is mine.

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