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cutting steerer tube to the right length

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cutting steerer tube to the right length

Old 04-22-13, 06:05 PM
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UMassAm
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cutting steerer tube to the right length

any tips on how to know where to cut the steerer tube on a new fork? short of a whole fitting, can i get an approximate line? I cut my last fork waaaay too short, been riding 6 months with it, this is take 2.
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Old 04-22-13, 06:09 PM
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Originally Posted by UMassAm View Post
any tips on how to know where to cut the steerer tube on a new fork? short of a whole fitting, can i get an approximate line? I cut my last fork waaaay too short, been riding 6 months with it, this is take 2.
Draw a line where the top of the stem is. Then remove the stem and cut slightly above that point and put one small spacer on top of the stem. If you don't want the small spacer over the stem then cut around 2 or 3 mm below the top of the stem.
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Old 04-22-13, 06:12 PM
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i should clarify. i need to find where the stem should go in the first place. guess i should just throw it on the trainer and experiment. have you ever been so lazy that you'll post about your problem on a forum before you'll solve it yourself? i have.
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Old 04-22-13, 06:16 PM
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Originally Posted by UMassAm View Post
i should clarify. i need to find where the stem should go in the first place. guess i should just throw it on the trainer and experiment. have you ever been so lazy that you'll post about your problem on a forum before you'll solve it yourself? i have.
Unfortunately yes, I have.
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Old 04-22-13, 06:16 PM
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Don't cut it until you are sure it is right.

Set it up with spacers above the stem. Ride it, then move the stem up or down and experiment until you get it right. When you are sure about the position, then you can mark it and cut it. Leave length for a 5mm spacer above the stem in case you switch to a new stem with a different stack height.

Be PATIENT and give yourself time to be sure. The only way to know is to ride it for awhile.
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Old 04-22-13, 06:23 PM
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it's uncut, and i havent thrown it on yet, but i imagine an uncut stem is too long to ride?
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Old 04-22-13, 06:25 PM
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Probably.

You could set it up with all of your spacers and the stem, check on the trainer quickly that it isn't too short for you, and cut it to that length as a starting point.
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Old 04-22-13, 06:33 PM
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To give you an idea here is how I am running mine until I am sure that I got it right.

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Old 04-22-13, 06:38 PM
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Definitely ride it before you cut too much off. Sometimes they do come extremely long, so it may be prudent to trim it some, but make sure you leave yourself enough room to experiment with different heights.
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Old 04-22-13, 07:30 PM
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For safety reasons I wouldn't ride the new fork on the road with a huge amount above the stem. If you have a trainer or a compliant LBS you should be able to get it down to a manageable size my mounting it on the stand. Then with only maybe two cm left above the stem for adjustment, it should be safe enough to ride on the road.
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Old 04-22-13, 09:41 PM
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Ride the bike with spacers before you cut anything. Put all the spacers on and try it. Lower it and try it with some spacers on top. If you like it, cut it. Don't just look at it and cut it. I still haven't cut mine and for the people who think it's dangerous remember stem shifters?
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Old 04-23-13, 09:53 AM
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Originally Posted by Alan Edwards View Post
Ride the bike with spacers before you cut anything. Put all the spacers on and try it. Lower it and try it with some spacers on top. If you like it, cut it. Don't just look at it and cut it. I still haven't cut mine and for the people who think it's dangerous remember stem shifters?
Yes - they were dangerous.
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