1. Squeaky wheels: The wheels make a loud, high-pitched squeaking noise as they rotate, due to worn-out or misaligned bearings.
2. Rattling chain: The chain is loose and rattles against the frame, making a clattering noise as you pedal.
3. Creaky frame: The frame creaks and groans as you ride, due to loose bolts or a lack of lubrication.
4. Wobbly wheels: The wheels are not properly aligned, causing the bike to wobble and sway as you ride.
5. Grinding gears: The gears are worn out or not properly adjusted, causing a grinding or crunching noise as you shift.
6. Squealing brakes: The brakes are worn out or not properly adjusted, causing a loud squealing noise as you apply them.
7. Loose parts: Various parts of the bike, such as the seat, handlebars, or pedals, are loose and rattle as you ride.
Some common phrases used to describe such a bicycle include:
1. "Clunker"
2. "Junker bike"
3. "Rattletrap"
4. "Bucket of bolts"
5. "Lemon bike"
6. "Piece of junk"
7. "Beater bike"