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Triple Conversion?

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Old 08-29-08, 05:14 PM
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Triple Conversion?

I have an old Shogun frame that I'm converting to a fixie. It has an old Tourney ST crank on a square taper BB.

I have a Shimano Ultegra triple with BB that I would like to use, but I'm not sure if it will work with a single chainring. I plan on picking up a flip/flop wheel. Thoughts?
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Old 08-29-08, 05:20 PM
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shouldn't be a problem. i have a 105 triple set up with a single chainring in the middle position and the chainline turns out to be just fine.
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Old 08-29-08, 10:40 PM
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Originally Posted by jch3n
shouldn't be a problem. i have a 105 triple set up with a single chainring in the middle position and the chainline turns out to be just fine.
cool
Do I need to do anything funky with the chainring bolts, or can I just reuse the same ones without the big ring?
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Old 08-29-08, 10:49 PM
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they'll be loose. you'll want the "shallower" track bolts.
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Old 08-29-08, 11:05 PM
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Originally Posted by sp00ki
they'll be loose. you'll want the "shallower" track bolts.
They won't be loose if you torque them down carefully, but it's a pain in the ass to do that. Just get track/bmx bolts, but if you can't find them use what you got.
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Old 08-29-08, 11:22 PM
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Originally Posted by crushkilldstroy
They won't be loose if you torque them down carefully, but it's a pain in the ass to do that. Just get track/bmx bolts, but if you can't find them use what you got.
if you use the original bolts from the triple with a single chainring, chances are you won't be able to torque them down. so either get shorter chainring bolts or get spacers to use with the originals.
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Old 08-29-08, 11:26 PM
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Originally Posted by crushkilldstroy
They won't be loose if you torque them down carefully, but it's a pain in the ass to do that. Just get track/bmx bolts, but if you can't find them use what you got.
no, they'll be loose. there's no practical way around this-- he'll need single ring bolts.
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Old 08-30-08, 08:22 AM
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Thanks y'all.
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Old 08-30-08, 08:59 AM
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is this the same issue when converting a Campagnolo Mirage triple crankset? and if i swing over to Trackstar or a similar place in the city, will they have the right crank bolts for me?
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Old 08-30-08, 09:03 AM
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bolts meant to hold two rings to the crank arms will be slightly longer than track bolts, which are meant to hold a single ring to the crank arms.
there could be exceptions to this (thinner spider, thinner rings), but in my experience, every double/triple i've converted required shorter bolts.

yes, they will have them. any shop (even big chains) will most likely have them. a shop specializing in tarck culture will undoubtedly carry different types, colors, materials, etc.
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