Frame feels really loose is there any way of tightening it up?

Tighten the bolts that hold it on the frame.

Easy answer? Check you tire inflation.

More complex? It could be a number of things starting with your chain too tight. Have someone hold the back of the bike up and turn the crank to see if it turns easy. Take note of the chain; at some point when turning slowly you should see it/feel it loosen. If it seems really tight undo your rear axle bolts and adjust the chain so it has about a quarter inch of slack. Make sure that the wheel is centered before you tighten the bolts back down.

This also could be a problem: the back wheel wasn't secure and it is rubbing on the frame. Center the tire between the frame and tighten the bolts.

If all that is OK then it could be bad or over tight bearings.Then it is really bike shop time.

You will need either an adjustable wrench, a socket of the right size, or a box end wrench of the right size
(If you read through this and still don't feel like you're up for it, your local bike shop will be more than happy to do it - and it will either be really cheap or free)
The bolt you need to loosen is on the back wheel where the training wheel meets the bike. Find the right size tool for the job.
Grab the back wheel and try to wobble it side to side, then remember how much give there is so your end result gives the same feel.
You may need a second wrench to place on the nut/s between the frame and the hub to prevent this from turning, though it will probably only be needed for tightening everything after you're done.
-Start on 1 side (doesn't matter which one) and loosen the outside bolt with your wrench/socket
You will need to remove it completely to take the training wheel off of that side.
-Slide training wheel off and hand-thread the bolt back on, not tight yet.
-Do the same for the other side, both training wheels should be removed at this point.
It may help to have someone else for this next part
-Pull the back wheel as far back as it will go, don't kill yourself, but make sure the chain won't slip off because it's too lose. Make sure the wheel is aligned with the bike frame, not twisted, otherwise it will loosen on its own
-Tighten one bolt on the outside down onto the frame. This is where you might need to use a second wrench to keep the hub from rotating. Don't turn the nuts on the axle in the area inside the frame (between the frame and the wheel) as they should be tightened correctly, instead just hold them steady while you tighten the outside nut onto the frame. If that wasn't clear, you're pinching the frame between the nuts inside, which you never moved, and the nut outside the frame, which you removed to take the training wheel off.
-Repeat for the other side while still maintaining tension on the chain.
-You should be done, check to see if the wheel can wobble side to side and compare to your earlier result. If it moves too much, continue tightening outside bolts (both sides until they're good and tight)

You need to tighten/adjust your frame neck bearings. There are an upper and lower bearing in the frame that the lower triple clamp pivots on so you can steer the motorcycle. If they are not adjusted correctly and are basically set too loose you can have several problems from steering wobble on deceleration to vibrations at varying speeds. Take off your bars and upper clamp , then snug up the steering stem nut just enough that it is starting to bind, then back it off enough that the bar turns smoothly lock to lock (probably1/4 to 1/2 turn). Then tighten the stem nut and recheck for binding. If you can feel pulsing or bumps in the smoothness of the pivoting/turning of the handlebar , you will need to replace the bearings. Tightening the steering stem nut may be all you need to do to stop the vibration.

hello if it's really loose the bearing are gone does it make scraping and knocking noise when spins if yes this is the problem hope it help

regards
shaun

The tire must have been worked on recently. With aluminum rims, it's not common, but not unheard of for the lug nuts to work themselves loose after servicing. It is recommended to re-torque the nuts 50-75 miles after service. Go ahead replace and tighten the missing or loose ones, and then in a day or so; after having put on the recommend miles, re-tighten them to insure their tightness.

Unless you feel a wobble or anything else in the suspension that could work a lug nut loose, you really should not have anything to worry about this aside from re-torquing the nuts.

If its a singlespeed:

Examine the tightness of the bolts that attach the axle to the frame by loosening then with a wrench. If it was loose that could have been the problem.

Now check the alignment and equal spacing of the wheel inside the frame. Pull the wheel back in the dropouts so the chain has an inch or two of looseness. Lightly tighten the bolts and check again and crank the wheel with the pedals and spin. Check the chain and equal alignment of the wheel. Tighten the bolts that attach the wheel to the frame.

If its a quick release, make sure that when tightening you apply a good amount of force to close the lever at least 90 to 100 degrees. And do all of the above.

hummm the nut should be at 100nm which is a bit really when you tighten it a tad does the wheel move side to side or feels rough get back to me

Three things come to mind when I read your question. First is the rear wheel bearings. Spin the wheel back and forth while holding onto it. See if you can feel any vibration or a rough feel in the wheel. I would think that if it were the wheel bearings you would hear or feel a grinding noise when you are riding.

If your rear wheel has a nut on both sides and you tightened them and that didn't work this means you must have the quick release system. You can tighten this by unclipping the wheel. Then hold the side that has the quick release lever. Hold onto the lever itself. Then turn the other end a little bit clockwise. Then put your wheel back on the bike and reclip the lever. It should now feel tighter. You may have to readjust the quick release lever a few times until you find the desired tightness.

Lastly the problem could be that your frame is worn out or broken somewhere. This would only show up when you are out riding because of your body weight and the strain put on the frame while you are pedalling. Also the part of the frame where your rear wheel sets may be chewed up. This would cause the wheel to never really tighten on the frame and could also cause the rear wheel to move.

I had a bike where the quick release wheel stystem went bad and it would not tighten on the frame. I believe the rod that went through the middle of the wheel hub was stretched and would just not tighten onto the frame.

I hope this has been helpful

Sounds like the belt is loose. To tighten the belt, start by locating the two bolts that adjust the rear roller (one on each side of the unit in the back). Run the unit at about 3 mph. Tighten the bolts a 1/4 turn at a time. Make sure that what you do to one side, you MUST do to the other side or the belt will get off center. After you tighten it 1/4 turn, check the belt to see if it is still slipping. If it is then tighten the belt 1/4 turn again. Continue until the belt does not slip, but do not tighten the bolts more than 2 full turns.