How do I raise the handle bars on my mongoose xr 200 21 speed bike

in the middle of handlebars you will see a hexadon bolt,when you got your new bike the right angle wrench should have been with it if so place the wreanch onto the bolt and turn anticlockwise this will loosen the nut,then pull the handlebars up until the wright is achived make sure they are straight then turn the wrench clockwise until it tightens,.Adrian....

Sorry about the request for more info about the bike I did not see the small print right above the How do I.

Anyway this link should help...I hope
26 Women Mongoose XR 75 Dual Suspension Bike


Personally, here in AUS bikes brought from Wallmart type department stores are very general purpose, meaning not professional, so the price doesn't hold in fact depreciates quite quickly so if you want to know for selling purposes than ask google, eBay, Amazon with words like used whether or not it has been, like unwanted gifts.

If I had to guess I'de say anywhere between $60 and $90 at best, but please feel free to do your own investigation and good luck.

I just did a search for this bike--
Did you get it at Walmart?--
Did you ask the salesperson there to help with this problem?

From what I can see, from the pictures that came from my search-
I do not see that you can hope to raise the handlebars very much!

This is not a very comfortable bike to ride--
Maybe you are trying to get something from this bike, that it was not designed to produce.

Let me know what you have tried so far-

Mack B

http://www.sheldonbrown.com/handsup.html

Getting Riser Bars or simply flipping the stem over or getting one with a different rise and reach might give you the added height you need. If you LIKE the handlebars, the stem is the best option as most new ones come with front loaders (detachable front caps) that allow replacement without stripping components off one side of the handlebar. In minutes a Bicycle Shop could swap any number of them onto your bike for you to try.

there should be an allen wrench bolt on top of the handle bar shaft. loosen that but not to much because you dont want the tightening nut to fall off. now put the front tire between your legs and try to wiggle the handle bars back and forth while pulling up if it does not move try loosening it a little more and take off the first bolt on the shaft and that should work. i hope this helped you
SabiousOne

Be careful, the stem must be inserted at least 3" or to the safety line, or it will snap off. You have to have a metric allen wrench. Like I say, and I cannot stress it more, do not raise beyond the safety line on stem, buy a longer stem, if you want it higher than that. If, the bike is too small, buy a bike that fits you from a shop who specializes in sizing.

Check the splines on the handle bar. Just loosen the "clamp" and slide the bar over to one side enough so you can tell if the are stripped or not. If they are then replace the bar, if not then reassemble and try to put a littlle extra torque on the bolt.

I have noticed with the 2 of these bikes that I have that the bars do not like to stay tight for long, they tend to work thier way loose about every other time we use them. I just keep tightening them untill the splines strip, then pick up a new bar.

Contact Mongoose for parts info at: www.Mongoose.com under "about" click ask mongoose.

Good luck.

where the bars slide into forks there should be a allen nut on the top undo this slightly and adjust bar height then tighten up allen nut

some bikes u cant only the seats can adjuct