How to Check a Bicycle Before a Ride

Look at both tyres for cuts, bulges, exposed casing, embedded objects or excessive wear. Feel whether each tyre is clearly underinflated, and use a gauge to compare pressure with the range stated on the tyre and relevant bicycle or rim guidance. Do not exceed the lowest applicable limit. If a tyre is damaged or will not hold air, fix it before riding.

For a punctured inner tube, follow How to Fix a Bicycle Puncture.

Lift each wheel slightly only if you can support the bicycle safely, then spin it gently to look for rubbing or severe wobble. Check that the axle or wheel-retention mechanism is securely fastened according to the maker's instructions. Do not guess how to tighten an unfamiliar quick-release or thru-axle; ask a bicycle mechanic if unsure. Stop if the wheel is loose or spokes are broken.

Squeeze the front and rear brake levers separately while gently trying to roll the bicycle forward. Each brake should hold the appropriate wheel and the lever should not pull freely to the handlebar. Check for visibly worn pads, damaged cables or hydraulic leaks without dismantling the system. If either brake is weak, dragging badly or leaking, do not ride until serviced.

For more detailed instructions, see How to Adjust Bicycle Rim Brakes.

Hold the front wheel steady and gently try to turn the handlebar relative to it; they should move together without looseness. Turn the handlebar from side to side to check smooth movement and that hoses or cables do not snag. Check the saddle and seatpost do not twist unexpectedly. Any loose steering, headset, stem or saddle clamp needs correction before riding.

Look for a dry, rusted or unusually slack chain, visibly bent parts and debris around the chainrings or rear sprockets. With the bicycle stationary, rotate a pedal slowly by hand where it is safe to do so, keeping fingers away from gears and moving teeth. Check both pedals feel secure. Do not ride if the chain regularly slips or a crank or pedal is loose.

For more detailed instructions, see How to Clean and Lubricate a Bicycle Chain.

Confirm your front and rear lights work if you may ride in low light and that required reflectors are present and clean. Check the bell and ensure bags and accessories cannot touch a wheel, block a brake or interfere with steering. Wear a properly fitted helmet where appropriate and follow local traffic rules for visibility equipment.

In a safe, level space away from traffic, walk the bicycle and check the brakes again. If all previous checks passed, make a very short, low-speed test, listening for unusual noises and checking predictable braking and steering. Stop immediately if anything feels loose, wobbly or inconsistent. A pre-ride check does not replace periodic maintenance or a professional safety inspection.