Just bought a Mongoose Spear (26"). How do I raise the handlebars?

Mongoose full-suspension mountain bikes, like the Ledge 3.1, have a little bit of height adjustment for the handle bars. See the manual at https://www.mongoose.com/pages/product-manuals . The current link to the appropriate manual is https://p.widencdn.net/brqquy/OMMGFS-1_Mongoose_FullSuspension_OM . Start at page 18 (20 of the manual in the browser) and determine the type of stem on your version of the bike. The quill stem version has minimum insertion marks that must be below the top of the headset and not visible. For the threadless stem version of the mountain bike, you adjust where the handlebars clamp onto the steerer tube. However, this is very imited since there should be only 1/8" to 3/16" gap between the top of the handlebar stem and the steerer (stem) tube. The is where the top cap and bolt to replaced on the handlebar stem and thread into the steerer tube.

I hope this helps.

Cindy Wells

Open the Allen screw in the center of the handlebar stem by about 2-3 turns, then wiggle left and right until you have the proper height, retighten screw

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....

It's not clear what she did to modify the height. Most strategies are here:

http://sheldonbrown.com/handsup.html

If you surf the web for "bicycle handlebar stem adjustments" you will eventually find something that looks like what it IS right now. I suspect you may want to UNDO the modification. You could engage a bicycle shop and save all the research, parts procurement and labor. OR go surfing.

The web is rich in resources for 'how to' do just about anything on a bicycle.

"adjust rear brake on bicycle"

One resource...

http://www.parktool.com/blog/repair-help/linear-pull-brake-service-v-brake-type

It would be stamped right on the clamp area. Loosen the stem's front face and look. That would only tell you the size of the 'bulge'. Otherwise, measure the dimension you need with a caliper.

Click on the pic of the bars.

http://www.bikeman.com/content/view/1637/115/

Maximum height was determined when the bike was built and they sawed off the steerer tube.

There is no way to raise the stem vertically, short of getting a new stem that has a higher rise.

http://en.wikipedia.org/wiki/Headset_(bicycle_part)

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

losen the bolt in the gooseneck and pull it out untill it's high enough. make sure you look for the mark on the side of it that tell's you the max. hight.

some bikes u cant only the seats can adjuct