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Old 08-27-2010, 01:49 AM
xen xen is offline
Motorized Bicycle Newbie
Join Date: Jun 2010
Location: Salt Lake City
Posts: 7
Default Re: Sand And Weighting ?s

Just a word of caution on the sand in the seatpost - most tubes in a bicycle frame are not sealed off from one another. Bike manufacturers purposefully drill holes in the head tube, seat tube, and bottom bracket shell where they meet the other tubes (I have no idea why, but they do). If you dump sand into the seatpost, it could potentially fill up the bottom bracket area that houses the bearings for the cranks. If you have a cartridge bottom bracket then you wont have much of a problem, but if you have an older style bottom bracket, which is very likely on a bike from the 90's, then you will be dumping sand directly into your bearings. You may want to check it out before you fill it up.
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