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Old 10-18-05, 07:09 PM   #1
SHB
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Need to lower the seat height position.

i want to lower my seat position (height) by an inch lower than the lowest it will allow me to go. i noticed that the seat post is limited by the top screw (of two) embedded across the seat tube. any idea on how to remove this limiting scew (unscrewing it doesnt work, there's another piece inside)?

i was thinking about just cutting the seat post at the bottom by an inch...will that work? i never noticed but there's a warning sign about tampering with the seat post, on the post itself....may i safely disregard that label? any idea on what/where to use to cut the seat post? im sure i can just use a metal cutting saw but i thought there might be an easier way than buying one at home depot. should i just go and find a shorter seat post? thanks for any ideas.
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Old 10-18-05, 07:16 PM   #2
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I had a similar (same?) problem with my new 350mm long seatpost hitting the water-bottle-cage screws on my bike. I'm not sure that you're talking about the screws for the water bottles, but it sounds like it.

It is generally safe to cut seatposts, and not difficult if the seatpost is aluminum. Especially if you only cut off as much as you need to get the seat as low as you like, you're not going to have a problem if the seatpost is going to end up down to the water bottle cage area. If you want to be safe, measure from the bottom of the post to the minimum insertion mark -- that will tell you how much the manufacturer thinks needs to remain in the bike.

A few minutes with a hacksaw will do, and in my opinion is easier than finding a shorter seatpost, especially with all the extra-long seatposts made for compact frames these days.
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Old 10-19-05, 03:40 AM   #3
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I cut the end off my seatpost with no problems at all. Just make sure you finish off the cut surface with a file or emery cloth and take the burr off the edge to avoid catching on the seat-tube.
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Old 10-19-05, 12:03 PM   #4
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Quote:
Originally Posted by schang
I had a similar (same?) problem with my new 350mm long seatpost hitting the water-bottle-cage screws on my bike. I'm not sure that you're talking about the screws for the water bottles, but it sounds like it.

It is generally safe to cut seatposts, and not difficult if the seatpost is aluminum. Especially if you only cut off as much as you need to get the seat as low as you like, you're not going to have a problem if the seatpost is going to end up down to the water bottle cage area. If you want to be safe, measure from the bottom of the post to the minimum insertion mark -- that will tell you how much the manufacturer thinks needs to remain in the bike.

A few minutes with a hacksaw will do, and in my opinion is easier than finding a shorter seatpost, especially with all the extra-long seatposts made for compact frames these days.
And your bike will be lighter .
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Old 10-19-05, 01:47 PM   #5
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Quote:
Originally Posted by SHB
any idea on what/where to use to cut the seat post? im sure i can just use a metal cutting saw but i thought there might be an easier way than buying one at home depot. should i just go and find a shorter seat post? thanks for any ideas.
hacksaw. No need for a power tool, unless you're looking for an excuse to collect tools. Just to confirm, you're talking about a metal seatpost, right?
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Old 10-20-05, 01:24 AM   #6
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metal seatpost? yeah...not sure if its steel or aluminum though. its the black seatpost that came standard on my hardrock. ill pick up a hacksaw this weekend and see how that turns out.
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