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Mount Pleasant, SC Mobility & Curb Rules: E-Bike Classes (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Motor power cap
750 watts / 1 horsepower
Unassisted top speed cap (definition)
Under 20 mph
On-road operating speed cap
15 mph, § 73.31
Sidewalk speed cap
12 mph, § 73.34
Helmet mandate
Riders under 21, § 73.32

Summary

The Town of Mount Pleasant does not sort e-bikes into class 1, 2, or 3 tiers; § 73.01 defines a single E-Bike category capped at 750 watts and 20 mph, and § 73.31 caps on-road speed at 15 mph. Riders under 21 must wear a helmet, and sidewalk riding follows the same rules as bicycles.

ELECTRIC-ASSIST BICYCLES AND BICYCLES WITH HELPER MOTORS ("E-BIKES"). Low-speed electrically assisted bicycles with two or three wheels, each having fully operable pedals and an electric motor of no more than 750 watts, or one horsepower, and a top motor-powered speed of less than 20 miles an hour when operated by a rider weighing 170 pounds on a paved level surface ... Any E-Bike that exceeds 750 watts or one horsepower and produces speeds in excess of 20 miles an hour shall be deemed a moped under this chapter and shall be subject to all regulations applicable to mopeds.

Full Breakdown

R. Part 1512; the motor must disengage when the brakes are applied or the rider stops pedaling, and the manufacturer must permanently label the bike's wattage and speed. 50, including carrying a valid moped operator's or driver's license. 30 gives e-bike riders the same rights and duties as motor vehicle drivers on Town streets. 31 sets a 15 mph operating speed cap regardless of the bike's rated top speed, requires riders to stay on a permanent seat with feet on the pedals or foot pegs, and bars carrying more riders than the bike is designed for.

32 requires anyone under 21 to wear a protective bicycle helmet and requires a front white lamp visible 500 feet and a rear red reflector for nighttime riding. 34 allows sidewalk riding only for children 17 and under (and adults with children seven and under), on Engineering and Development Services-designated shared-use paths at least eight feet wide, on sidewalks next to roads with no bike path, or next to roads posted 30 mph or faster, capped at 12 mph on any sidewalk or shared-use path.

Violations & Fines

Violating any e-bike provision in Chapter 73 is punishable under § 73.99: a fine up to $500 or up to 30 days' imprisonment for an individual, and up to a $500 fine plus possible license suspension or revocation for a corporation, never exceeding the state law penalty for a similar offense.

Frequently Asked Questions

Does Mount Pleasant classify e-bikes by class 1, 2, or 3?
No. Section 73.01 of the Town Code defines a single E-Bike category, capped at 750 watts and a top motor-assisted speed under 20 mph, rather than the three-tier class system some states use.
What happens if my e-bike exceeds 750 watts in Mount Pleasant?
Under § 73.35, an e-bike that exceeds 750 watts or 20 mph is treated as a moped, meaning the rider must carry a valid moped operator's or driver's license and meet moped registration rules under §§ 73.45 and 73.46.
Can adults ride e-bikes on Mount Pleasant sidewalks?
Only in limited cases. Section 73.34 allows sidewalk riding on designated eight-foot shared-use paths, sidewalks with no adjacent bike path, or beside roads posted 30 mph or higher, always capped at 12 mph and yielding to pedestrians.

Sources & Official References

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