Tag Info

New answers tagged

2

Define performance? Top speed, efficiency, handling? If you lower the bar you will be more inclined with less frontal area Unless you have some really strange air flow you will have less aerodynamic drag Drag = CD x Area x Velocity x Velocity CD is the drag coefficient and it can also change with position but it should be pretty constant Because of ...


2

If you are looking for pedalling performance, adjusting the seatpost (up and down) and the seat (back and front) is the answer. There are literature about adjusting seatpost so you can look them up on the internet; youtube also have many video demonstration. Adjusting handlebar height is more about efficiency. In general: the less up-right position, the ...


2

You can lower the bar first by flipping the stem. Judging from the angle of your stem it will lower the bar by at least 5-7cm (2-3 inches). Which is already a good start The next step would be to migrate the 2 spacers from below the stem to the top. With two spacers on top it might look a bit awkward but there is no technical argument against doing it. So ...


1

Many of these answers are valid, but before you go through the trouble of heating your frame, using nasty chemicals, or anything else, there is a far simpler method that often does the trick. Get a dumpy saddle you don't mind bending and install it in the seat post. Clamp the saddle in a bench top vice. Using the entire bike frame as a lever, turn the ...


1

Noone's mentioned heat to enlarge the steel frame. First, check with a magnet to make sure the frame is steel. If its an aluminium frame, then stop now. Remove the bottom bracket and bearings first. And remove the seat. Also remove brake cables from the area of the seat clamp. Drill a good sized hole through the top of the seat pole, and fit a lever ...


1

Leaving out the back story - which is emotional - here is how I got an alloy seatpost out of a Columbus SLX (steel) frame. I got a bunch of optimistic advice and it all failed me. I tried: Penetrating oil such as WD-40, Hard core penetrators like PBlaster and Kroil, Freeze spray, Hammers, and giant levers. I was down to the last resort - sodium ...


0

Just a thought… Run a bolt – maybe even a high strength bolt – backwards through the seatpost clamp and put a putty knife or the edge of a heavy washer between the halves of the clamp so that as you tighten the bolt it opens the seat tube. In a comment below, it was noted that in some seatpost clamps the threaded portion is an insert (i.e., it is not ...


0

Not going to lie, seeing those pictures brought a tear to my eye. So sad how some people treat their toys, (referring to previous owner). Anyways, this is a pretty simple fix. Easiest way to get the post outta there would be to give the whole area where the post meets the frame a healthy dose of wd40. Let it sit for a few minutes, then re apply. At this ...


4

I noticed the same thing when I first got a B17. I fiddled with various angles and so forth, but in the end I found it's mainly just a matter of getting used to the smoother feel of leather as compared to the plastic you're used to. You slide over leather more easily, especially if you wear typical bike shorts, and this gives you the sensation that you're ...



Top 50 recent answers are included