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Old 03-15-08, 04:56 PM   #1
Slow86prix
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Where to cut my steerer tube

So once again first build, yada yada. where do i cut off my steerer tube at, or fork tube whatever. Even with the stem ?? or a bit below it? I would think a bit below so you could torque it down.
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Old 03-15-08, 06:06 PM   #2
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You want the end result to leave about 3-5 mm below the stem when all hs spacers are installed. I always toss in at least one extra medium spacer to start so you can mess around with stem height. Once you cut it you cant put it back. You can always cut it a second time when you know for sure where you want it.
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Old 03-15-08, 07:00 PM   #3
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You want the steerer to be at least level with the top bolt on the stem.
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Old 03-15-08, 07:02 PM   #4
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ok sounds good, should i start with a spacer? do i have to run one ? because ive sat on the bike how it is now and i think i like it the way it is.
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Old 03-15-08, 07:07 PM   #5
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Like cavernmech said before,you can cut twice but you can't put it back. Leave enough room for some spacers and move them around.You can put the all on top pf the stem then try them on the bottom and then somewhere in between. It'll give you some options before the final cut.
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Old 03-15-08, 07:20 PM   #6
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Another reason to go with spaces.. what if you switch the fork to another bike frame down the line? New head tube could be longer then the fork steerer then your screwed. One or two spacers will be barely noticeable ride wise, but very noticeable in the wallet down the line.
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Old 03-15-08, 07:29 PM   #7
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Run a 10mm spacer for a week or two on top of the stem until you are positive about fit if you are building a bike from scratch. If you are just swapping out then not necessary. With a decent pipe cutter, aluminum steerers will cut in 20 seconds like butter. Don't forget to clean up the cut with a Dremel or a file.
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Old 03-16-08, 08:02 AM   #8
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alright thanks guys
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Old 03-16-08, 08:10 AM   #9
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I would throw on several spacers and play around with stem height. Cutting a tube too short = mega sucks. Most ppl say to have a 3mm gap between top of stem/spacers and tube for compression.
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Old 03-16-08, 10:38 AM   #10
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I would throw on several spacers and play around with stem height. Cutting a tube too short = mega sucks. Most ppl say to have a 3mm gap between top of stem/spacers and tube for compression.
There isn't much in the way of compression there (if any), but 3-5 mm assures there will be no interference by the steer tube on the adjustment.
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Old 03-16-08, 11:13 AM   #11
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There isn't much in the way of compression there (if any), but 3-5 mm assures there will be no interference by the steer tube on the adjustment.
Perhaps compression was the wrong word to use.

"Headset bearing adjustment is done by pressure from an adjusting cap on top of the fork. "

http://www.parktool.com/repair/readhowto.asp?id=111
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Old 03-17-08, 02:07 PM   #12
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yes leave a gap for one or two spacers. don't worry you can have different rise stems.
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