Bicycle Safety check
Brakes - Rear and Front: Are they operating OK? Are brake pads in line on the rim? Does the cable need adjusting? Are new brake pads required because worn? Tyre and Wheel - Front and Rear: Is the tyre OK, not worn - holes or tread gone? Does a wheel need straightening?
Steering: Handlebars should be firmly connected to the steered wheel. Does the head-stem need adjusting? Are the hand grips secure, not slippy ?
Warning device - a legal requirement: Does the bell ring or horn sound sufficiently loudly and reliably? You need a warning device.
Reflectors - a legal requirement: Front White and Rear Red are required - visible and clean enough to be effective.
Seat should be adjusted to right height, at correct level or only slight tilt, locked firmly in place.
Helmet Safety check
The Helmet must meet current standards. The styrofoam shell must be intact, not damaged, chewed or cracked. The straps also must be intact, not worn or frayed. The Helmet should also be the right size (fitting firmly with appropriate internal pads, worn level and square upon the head, and secured with the strap. Straps should be adjusted so that the spreader is just below your ears, and, without impeding breathing, the strap adjusted to be firm under the chin.

Bicycle Mechanical checks
These can be daily checks if the cycle is exposed to severe weather conditions - wet or dry: Wheel bearings lubricated; Pedals turn freely and lubricated; Bottom bracket lubricated, and bearings firm; Chain flexible and lubricated; Gear cables adjusted to change correctly.