Loud, jerky shifting.
When shifting gears, you hear a grinding sound and feel a sudden jerk as the gears change.
Pedaling with Excessive Force While Shifting.
This could be the most simple cause; try timing your shifts while coasting or going down hill.
If loud, jerky shifting persists, read on.
Lack of Lubrication.
It is fairly common to have the chain bind and slip due to low lubrication or excessive dirt. If there is any dirt buildup or lack of lubrication this could be your problem. Click here for a video with instructions for cleaning and lubricating your chain.
If your inspection reveals visible damage, read on.
Inspect the following components for visible damage:
If you find that any of these components are damaged beyond repair, you can find additional parts by clicking the following link: Bizrate.com
Brakes not operating properly.
Brakes not effectively slowing or stopping your bicycle.
Using only Rear Brakes.
This is not utilizing your full braking potential, try using your front brakes also as this will greatly increase your ability to stop effectively.
If this does not improve your stopping ability, read on.
Loose/Disconnected Brake Cable
Inspect cable connections at handle and brake calipers to be sure they are securely connected and the cable is not slack.
If these connections are loose, see appropriate repair guides. Tightening Mt Fury Roadmaster Brake Cables
Worn Brake Pads
Inspect brake pads for degradation and/or wear. If either of these are visible, you need to replace your brake pads.
For instructions on replacing brake pads, see appropriate repair guide. Mt. Fury Roadmaster Brake Pad Replacement
Misaligned Pivot Brake Caliper
If you notice uneven wear on your brake pads, a simple adjustment of your single pivot brake caliper should resolve this problem. See step four of Tightening Mt. Fury Roadmaster Brake Cables repair guide.
Chain frequently falls off.
During shifting or pedaling the chain falls off of the gear sprockets.
If you notice slack in your chain, it is possible to remove a link. For guidance see the following link: Bikebooboos.com
This could mean that the derailleur is not disengaging and needs some fine tuning. See applicable repair manual. Parktool.com
The cause could also be due to a damaged derailleur, see link above for replacement instructions.
At higher speeds, you notice your Mt Fury Roadmaster feeling "wobbly".
Spokes not Properly Tensioned
If you notice, upon inspection of your wheels, that some of your spokes feel loose, take appropriate steps to re-tension them. For instructions see the following YouTube video: How to Tension a Bicycle Wheel
In some cases, adjusting spoke tensions will not suffice. If your rim is bent, it may need to be replaced, you can follow steps 1 through 6 in the Mt. Fury Roadmaster Tire Replacement guide for instructions on removing the rim.
Bike veers from the direction you intended to steer towards.
Apply pressure on both tires with your hand. If the tire does not keep its shape you may need to pump up your tires. When you are pumping up your tire make sure that the gauge on the pump does not read more than 40-50 psi.
If your tire does not hold the pressure recommended then you will have to replace or patch the inner tube of the tire. See repair guide for instructions on how to replace the inner tube: Mt. Fury Roadmaster Tire Replacement
Check that your handlebars are perpendicular to your front tire. If not, the following YouTube video could prove helpful:Adjusting Handlebars Beginning at 1:40 you'll find handle bar adjustment instructions that would be applicable to the Mt Fury Roadmaster