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Bicycles

A bicycle is a two-wheeled, man-powered vehicle. Any questions about purchasing, riding, or maintaining a bicycle can be asked here.

31,490 Questions

Why is my rear derailleur not shifting up properly?

Your rear derailleur may not be shifting up properly due to issues such as cable tension, derailleur alignment, or worn out components. It is recommended to check these factors and make necessary adjustments or repairs to improve shifting performance.

Why is my rear derailleur not springing back into position?

Your rear derailleur may not be springing back into position due to issues such as a dirty or damaged spring, misaligned derailleur hanger, or cable tension problems. It is recommended to check and address these issues to ensure proper functioning of the derailleur.

Why is my rear derailleur skipping gears on my bike?

Your rear derailleur may be skipping gears on your bike due to issues such as a misaligned derailleur hanger, worn out chain or cassette, or cable tension problems. It is recommended to have a professional bike mechanic inspect and adjust your derailleur to resolve the issue.

Why is my rear derailleur skipping the middle gears on my bike?

Your rear derailleur may be skipping the middle gears on your bike due to issues such as a misaligned derailleur hanger, worn out chain or cassette, or cable tension problems. It is recommended to have a professional bike mechanic inspect and adjust your derailleur to resolve the issue.

Why is my rear wheel not straight and how can I fix it?

Your rear wheel may not be straight due to issues with the wheel alignment or spoke tension. To fix it, you can adjust the spoke tension using a spoke wrench to straighten the wheel. If you are unsure how to do this, it is recommended to take your bike to a professional bike mechanic for proper alignment.

Why is my padlock jammed and the key won't turn?

Your padlock may be jammed because of dirt or debris inside the lock mechanism, a misaligned shackle, or a damaged key. Try cleaning the lock, lubricating it with graphite powder, and gently tapping it to dislodge any obstructions. If the key still won't turn, it may be worn or the lock may be damaged, requiring professional assistance to fix or replace it.

Why is my patched tire still losing air?

Your patched tire may still be losing air due to a variety of reasons, such as improper patching technique, damage to the inner lining of the tire, or a new puncture. It is recommended to have a professional inspect the tire to determine the exact cause of the air loss.

Why is my press fit bottom bracket creaking?

Your press fit bottom bracket may be creaking due to a loose fit, dirt or debris causing friction, or worn-out bearings. It is important to inspect and potentially replace the bottom bracket to resolve the issue.

Why is my presta valve leaking air?

Your presta valve may be leaking air due to a damaged or worn-out valve core, improper installation, or debris blocking the valve. Check for these issues and replace the valve core if necessary to stop the air leak.

Why is my presta valve stuck and how can I fix it?

Your presta valve may be stuck due to dirt or debris blocking it. To fix it, try gently tapping the valve to dislodge any obstructions. You can also try using a valve tool to loosen it. If these methods don't work, consider replacing the valve.

Why is my rear bike brake rubbing and how can I fix it?

Your rear bike brake may be rubbing due to misalignment or wear on the brake pads. To fix it, you can try adjusting the brake caliper position, realigning the brake pads, or replacing worn brake pads.

Why is my rear bike tire rubbing against the frame?

Your rear bike tire may be rubbing against the frame due to misalignment or improper installation. Check if the tire is centered properly and if the wheel is securely attached to the frame. Adjusting the wheel alignment or seeking professional help can help resolve the issue.

Why is my rear brake sticking and how can I fix it?

Your rear brake may be sticking due to a variety of reasons such as dirt or debris, worn brake pads, or a misaligned brake caliper. To fix it, you can try cleaning the brake components, replacing the brake pads if they are worn out, or adjusting the brake caliper to ensure proper alignment. If the issue persists, it may be best to consult a professional bike mechanic for further assistance.

Why is my rear derailleur clicking while I am cycling?

Your rear derailleur may be clicking while cycling due to issues such as misalignment, worn out components, or a dirty chain. It is important to have your bike inspected and serviced by a professional to address the problem and prevent further damage.

Why is my motor frozen and how can I fix it?

Your motor may be frozen due to a lack of lubrication, dirt or debris buildup, or a mechanical issue. To fix it, try lubricating the motor, cleaning any dirt or debris, or seeking professional help if the issue is more complex.

Why is my motorcycle brake piston not retracting properly?

Your motorcycle brake piston may not be retracting properly due to a few possible reasons, such as air in the brake lines, a damaged seal, or dirt and debris causing friction. It is important to inspect and address these issues promptly to ensure your brake system functions correctly and safely.

Why is my mountain bike gear slipping and how can I fix it?

Your mountain bike gear may be slipping due to worn out or improperly adjusted components such as the chain, cassette, or derailleur. To fix it, you can try cleaning and lubricating the chain, adjusting the derailleur, or replacing any worn out parts. If the issue persists, it may be best to consult a professional bike mechanic for further assistance.

Why is my new bike chain skipping?

Your new bike chain may be skipping due to issues such as improper installation, a worn chain or cassette, misalignment of the gears, or a dirty chain. It is recommended to check these factors and make necessary adjustments or replacements to resolve the skipping issue.

Why is my new bike chain slipping when I pedal hard?

Your new bike chain may be slipping when you pedal hard due to issues such as improper installation, a worn chain, or misalignment of the gears. It is recommended to have a professional inspect and adjust your bike chain to resolve the issue.

Why is my new bike chain slipping?

Your new bike chain may be slipping due to improper installation, wear and tear, or a misaligned derailleur. It is important to check these factors and make necessary adjustments to ensure smooth operation.

Why is my new bike clicking when I pedal?

The clicking sound when you pedal on your new bike could be caused by loose pedals, a misaligned chain, or worn-out bottom bracket bearings. It's best to have a professional bike mechanic inspect and fix the issue to ensure smooth and safe riding.

Why is my new bike not pedaling forward?

There could be several reasons why your new bike is not pedaling forward. Some common issues could be that the chain is not properly aligned or tensioned, the gears are not shifting correctly, or there could be a problem with the pedals or crankset. It's best to take your bike to a professional bike mechanic to diagnose and fix the issue.

Why is my new bike squeaking and how can I fix it?

Your new bike may be squeaking due to loose or misaligned parts, lack of lubrication, or dirt and debris. To fix it, try tightening any loose bolts, lubricating the chain and moving parts, and cleaning the bike thoroughly. If the issue persists, consider taking it to a professional bike mechanic for further inspection and repair.

Why is my new tubeless tire losing air?

Tubeless tires can lose air due to improper installation, damage to the tire or rim, or a faulty valve. It is important to check for leaks and ensure that the tire is properly seated on the rim to prevent air loss.

Why is my front derailleur not shifting up properly?

Your front derailleur may not be shifting up properly due to issues such as cable tension, derailleur alignment, or worn out components. It is recommended to check these factors and make necessary adjustments or repairs to ensure smooth shifting.

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