rutledj

I have a GT Transeo bike that the handlebar is just too low. I'm looking for a riser but all I can find is one with a 1 1/8" diameter. When I measure mine with calibers it is 1 1/4" OD. I can't seem to find one of these. Can anyone make a suggestion?

I'm assuming the bar won't rise any higher. I loosened the center screw and tried to move it up but it wouldn't budge. I'm assuming it is actually the fork and it won't lenthen.

Thanks,
Rut

bikinfool

Are you measuring the width of the bar at the clamping area of the bar? The GT Transeo I looked up had a 25.4 mm stem/bar, but maybe you've got a model with a 31.8mm, another fairly common size (you should have no problem finding a choice of stems/bars with that clamp diameter). They don't raise like the old quill stems, as it sounds you tried to do, it's a threadless system so you can undo the stem/steerer clamp as well as the top bolt, then remove the stem and possibly put more spacers under the stem to raise it up, or perhaps your steerer is cut to the bone...hard to say. Do you have spacers above your stem now? If you do you can move it/them under the stem to raise your bars.

norwood

You have a threadless headset ( as you may already know). Likely your forks steerer tube is cut short so that you have no more vertical space to raise the bars. Your options are to get a steerer tube extender as you mentioned or to get a new stem with a much sharper (higher) rise. Your steerer tube is likely 1 1/8". That's pretty much standard these days. I'm not sure where you are measuring to get 1 1/4". You have to measure the O.D. of the steerer tube, not the stem clamp. Take the top cap off and measure the I.D. of the stem, which would be the O.D. of the steerer tube. Bear in mind, if you are successful in get the bars raised by some means, and you move them very far, you will probably has to replace the shift and brake cables and housings.

norwood

You could also try handle bars with a higher rise.

rutledj

I don't know enough about the bike parts to speak about them but this picture is what mine looks like. It appears to me that the fork tube comes up and the handle bars are attached to that.

I'm assuming I need a riser bar that will clamp to the outside of the tube? Or is there a smaller tube underneath where the current handlebar is attached? I put a set of calipers around the tube that I can see below the handlebars. That is where I measured 1 1/4".

See pic here: https://www.performancebike.com/bikes..._1061041_-1___

Rut

norwood

The stem is the angled unit that clamps to the fork steer tube and is what your handlebars are then attached to. Sounds like you measured the O.D. of the spacers below the stem, which is not the same as the steer tube O.D. How ever if your bike is exactly like the picture you may have a least one spacer above the stem which you can remove and place below the stem for about a half inch added height. If you don't feel comfortable doing any of this ( you will have to re-set the headset adjustment also) I would recommend taking the bike to a reputable bike shop. They can fix you up with a riser should you need it.