State has a Far Right as Practicable Requirement

Pennsylvania requires a bicyclist riding slower than traffic to ride in the right-hand lane or as close as practicable to the right edge, except when passing or preparing to turn left. 75 Pa.C.S. § 3505 cross-references this same rule for pedalcycles.

Allows Two Abreast Riding

Pennsylvania allows riding no more than two abreast within a single lane on a roadway; more than two abreast is permitted only on paths or lanes set aside exclusively for pedalcycles.

Single File is Required

Pennsylvania does not require single-file riding; two abreast is expressly permitted in a single lane. More than two abreast is prohibited except on exclusive pedalcycle facilities.

Has a Safe Passing Law

Pennsylvania requires a motorist overtaking a bicyclist to pass on the left with at least four feet of clearance, at a careful and prudent reduced speed.

Helmets are required on the road

Pennsylvania requires riders and passengers under 12 years of age — including children in a bicycle-mounted child seat or towed trailer — to wear an approved pedalcycle helmet. There is no statewide helmet requirement for riders 12 and older.

If Bike Lanes are present, they are required ( except when unsafe )

Pennsylvania once required cyclists to use an available pedalcycle path, but that requirement (§ 3505(f)) was repealed in 1998. There is currently no statewide mandatory bike-lane-use rule.

Riders may use the sidewalks

Pennsylvania allows sidewalk riding except in business districts, unless a local traffic-control device specifically permits it there; a sidewalk rider must yield the right-of-way to pedestrians and give an audible signal before passing.

Does the Impeding Statute Apply to Bikes

Pennsylvania's impeding-traffic law does apply to bicyclists, but under a relaxed standard: a cyclist may ride at a speed reasonable for a bicycle and must only use "reasonable efforts" not to impede traffic, rather than being held to the stricter standard applied to motor vehicles.

Whether cyclists may treat stop signs as yield signs (the "Idaho stop").

Pennsylvania has no statewide "stop as yield" law; a bicyclist must come to a full stop at stop signs and red lights just as a motor vehicle driver must.

Restrictions exist on e-bikes and usage

Pennsylvania defines a "pedalcycle with electric assist" as a pedal-equipped, two- or three-wheeled vehicle under 100 pounds with a motor of 750 watts or less and a motor-only top speed of 20 mph; it is legally treated as a pedalcycle rather than a motor vehicle. A rider must be at least 16 years old to operate one. "Pedalcycle with electric assist" is defined in 75 Pa.C.S. § 102.

Allows the concept of Contributory Negligence that allows any contributory fault resuls in 'no fault'

Pennsylvania does not follow pure contributory negligence. It uses modified comparative negligence: an injured cyclist can still recover damages as long as their own negligence does not exceed that of the party or parties who caused the harm (a "greater than 50%" bar), with damages reduced by their percentage of fault.