State has a Far Right as Practicable Requirement

A bicyclist traveling slower than normal traffic must ride in the right-hand travel lane and, when the lane is wide enough to share safely, as far right as the rider judges safe. Subsection (a) lists seven exceptions allowing a rider to leave the right side, including passing, turning left, avoiding hazards, using a paved shoulder or bicycle lane, and dedicated turn lanes.

Allows Two Abreast Riding

Delaware allows bicyclists to ride two abreast. Riding more than two abreast is generally prohibited except on paths or roadway sections set aside exclusively for bicycles.

Single File is Required

Delaware does not require single-file riding. Cyclists may ride two abreast; riding more than two abreast is generally prohibited except on bicycle-exclusive paths or roadway sections.

Has a Safe Passing Law

Delaware requires a motorist overtaking a bicyclist to change lanes fully when a second lane is available or the current lane is too narrow to share; where the lane can be safely shared, the motorist must reduce speed and pass with at least three feet of clearance.

Helmets are required on the road

Riders and passengers under age 18 must wear a helmet meeting CPSC (or, for pre-1999 helmets, ANSI/ASTM/Snell) standards. A parent or guardian who fails to ensure compliance may be fined $25 for a first offense and $50 for subsequent offenses. For Class 3 electric bicycles, all operators and passengers must wear a helmet regardless of age (21 Del. C. § 4198P).

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

Delaware does not require bicyclists to use a bicycle lane merely because one is provided; § 4196(a)(6) treats riding in a designated bicycle lane as a permitted option, not a mandate.

Riders may use the sidewalks

Sidewalk and crosswalk riding is allowed unless prohibited by a posted sign or other traffic-control device. Riders must yield to pedestrians and give an audible signal before passing.

Does the Impeding Statute Apply to Bikes

Delaware requires a slower-moving cyclist to ride in the right-hand lane and facilitate overtaking traffic when it is safe to do so, but the statute preserves the cyclist's ability to move left for safety, passing, turns, or hazard avoidance, and clarifies that riding two abreast is not itself an impediment when traffic can safely pass.

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

Delaware's "Safety Stop" law lets a bicyclist treat a stop sign as a yield sign, but only at intersections with two or fewer moving-traffic lanes; a complete stop is still required at three-or-more-lane intersections, or whenever another vehicle is already stopped at the same sign.

Restrictions exist on e-bikes and usage

Delaware recognizes Class 1, 2, and 3 electric bicycles and generally treats them as bicycles. Operators of a Class 3 e-bike must be at least 16 years old, and all Class 3 operators and passengers must wear a helmet regardless of age. An e-bike's motor must disengage when the rider stops pedaling or applies the brakes.

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

Delaware does not follow pure contributory negligence. It uses a modified comparative negligence system: an injured bicyclist may recover damages if their negligence is not greater than the defendant's (or combined defendants') negligence, with damages reduced in proportion to the cyclist's share of fault.