Is there an after market stem available for my univega gran premio? The top tube is just a tad longer than I like and I am wondering if there is a stem that I could use that would shorten my reach a bit.

Yes, many varieties. All you need is to make sure it's for a 1 inch steer tube and the clamp diameter will fit you handlebars. It's probably 100mm currently, try an 80 or 90mm stem. Try your local coop or LBS.

How about this?
https://www.amazon.com/Origin8-Class...tem&th=1&psc=1

Maybe, but you should be sure whether the handlebar measures 25.4 mm or 26.0 mm (or possibly 26.4 mm) at the clamp. Could you give precise information about what stem is on there now?

There is also the possibility that you could reduce the reach by moving the saddle forward a little. If that's possible, it will change the way the bike fits you, and you'll figure out pretty quick whether it was an improvement of not.

Yea, I forget what the name of that stem is but its the stock stem on all Univega's

Right, probably 25.4 mm but a measurement is better than a guess. I have a lower end Univega in my cellar, I will measure that, but let's hope others weigh in.

My 83 sportour had an SR custom with a 25.4 clamp area.

I got 26mm? I put calipers to measure it.

My stem if I am measuring correctly seems to be 120mm?

I just measured the difference in the top tube on my most comfortable riding Univega and it is 1/2" shorter than the Gran Premio so that equates to 12.7mm - 120mm = 107mm so should I get a 100mm stem? That is if I am measuring the length of the stem correctly...I just measured from outside of clamp to the center of the stem bolt. If I measure from center of handlebar to center of stem bolt it looks to be 108mm.

100mm seems a pretty safe bet. As Rudi mentioned above, repositioning the saddle can help, too. Also, riding more miles makes you more able to stretch out over time. Don't ask me just how far; I haven't gotten there yet

My Gran Rally came with a 100mm stem. 25.4 clamp. The Origin8 stems posted earlier are poor quality, I have one. Plus you want a silver one. I like Nitto Dynamic stems.

Gran Premio is not a lower end Univega.

The stem diameter is going to be either 26.0 or 25.4 mm. Measure the handlebar with a caliper where the stem goes over it. A ruler is not good enough. If your calipers are telling you 26.0 and you know how to use them, that is what they are. You need resolution to at least +/-.1 mm

The length is measured from the center of the stem bolt to the middle of the handlebar. A ruler is normally good enough.

PS there is no stock stem on all Univegas. The gran premio is an upper end model and most likely has an SR stem, but it depends on the year.

Yea, pretty sure mine is 26mm and my stem length is 120mm

Dumb question here but the bar tape, brake levers and everything has to come off the bars in order to change out the stem? I don't see any other way but was just asking...

Yep, but usually you just remove everything on one side.

Awesome. Thanks for that because I sure would have just taken it all off!

Yeah, you'll pull the tape and lever off the front brake side usually because the rear brake side will have more free cable.

If the bar tape is in good shape you can reuse it. Then loosen and remove the brake lever on one side. You might not need to disconnect any cables, depending on cable slack.

Then loosen the old stem and remove the bars. Thread the new bars into the stem. Take your time and don't force it - - you don't want to scratch up the middle of the bars that will be exposed.

There are tricks to opening the stem like using a coin in the slot and screwing the bolt into it to open things up. Report back if you need details.

Most important is to make sure everything is tight before riding. I almost always underestimate how tight the bars need to be not to slip!

The Bike company did not make the stem, they just got a lot of them from the company that did.