2 eBike Shops in Custer County, SD
Custer County has 2 directory listings, and both are bicycle rental services in the town of Custer: Axbow and Black Hills Power Bikes Rentals & Boutique. The state's Mickelson Trail brochure shows a trailhead at Harbach Park in Custer, so a rental here puts you on a rail trail close to town.
South Dakota changed the rules for that trail in 2025. Only a Class I eBike, meaning pedal assist that cuts out at 20 miles an hour, is allowed on the Mickelson Trail, and the throttle and speed classes are not.
Things to do on an eBike in Custer County →
eBike shops by city
All 2 listings are in Custer, shown below.
Where to ride in Custer County
The state's Mickelson Trail page describes 109 miles of crushed limestone with more than 100 converted railroad bridges and 4 rock tunnels, running from Edgemont to Deadwood. A trail pass costs $5 a day or $20 a year per person.
Custer State Park allows bikes on seven of its hiking trails, among them Badger Clark, Cairn, Creekside and Prairie, and the park's Wildlife Loop Road crosses open grassland where bison roam.
Ask each rental shop whether the Mickelson pass is included in the price, because riders 12 and older need one.
eBike rules in South Dakota
South Dakota has three eBike classes, all limited to 750 watt motors. Class I and Class II stop assisting at 20 mph (Class II can run without pedaling), and Class III is pedal assist up to 28 mph. Class III riders must be 16 or older, and Class III riders under 18 and all Class III passengers must wear a helmet. Check local rules for licensing, registration, and insurance. See our South Dakota eBike laws guide for sources, then check posted signs.
The path rule is § 32-20B-12. Unless the governmental entity in charge says otherwise, you may ride a Class I or Class II on any bicycle path or multi-use path. A Class III is barred from those paths unless the path is within or next to a roadway or the entity expressly permits it, though a Class III may use a natural-surface trail designated non-motorized if the entity has not restricted it. The George S. Mickelson Trail is stricter. A 2025 law, Chapter 178, amended § 41-17-27 so that only a Class I eBike may use the trail; Class II and Class III are not exempted, and a violation is a Class 2 misdemeanor. Under § 32-20B-13, a Class III operator must be at least 16, though a younger child may ride as a passenger on a Class III built for one. A Class III also needs a working speedometer.
A helmet is required only on a Class III, for operators under 18 and for every passenger of any age (§ 32-20B-14). We found no statewide helmet rule for Class I or II, no eBike driver license, no registration, and no insurance requirement. On the road, a rider going slower than traffic keeps as close as practicable to the right edge (§ 32-20B-5), and a rider on a sidewalk has a pedestrian's duties and must yield and signal before passing. Cities, state parks, and federal land add their own rules. Read our South Dakota eBike laws guide, then check the sign at the trailhead.
Cities in Custer County
Custer holds every listing, and the eBike shops in Custer page shows all of them.
Frequently asked questions
Which eBikes are allowed on the Mickelson Trail?
Only Class 1, meaning pedal assist that stops helping at 20 mph. A 2025 law amended section 41-17-27 to exempt a Class I eBike and no other class, and the Game, Fish and Parks policy page lists Class 1 eBikes and electric wheelchairs as the motorized exceptions.
Do I need a pass to ride the Mickelson Trail?
Yes for anyone 12 and older, outside city limits. Game, Fish and Parks sells daily passes at $5 per person and annual passes at $20 per person.
Can I ride a bicycle in Custer State Park?
On the seven hiking trails the park lists for bikes: Badger Clark, Barnes Canyon, Bison, Cairn, Creekside, Grace Coolidge and Prairie. The park pages we read do not say whether eBikes may use them.
Can an adult ride an eBike without a helmet in South Dakota?
Yes, on a Class I or II, according to the statutes we read, because § 32-20B-14 applies only to Class III bikes. Wearing a helmet is still smart, and a rental shop or city trail may ask for it.
