2 eBike Shops in Fremont County, ID
Fremont County has 2 directory listings, in St. Anthony and Island Park. InstaGear Outdoor Co., in St. Anthony, is filed as an electric bicycle store. Mack's Inn River Adventure and eBike Rental in Island Park is filed as a boat rental service, and its name says it rents eBikes.
Call each one about the classes it carries, because Idaho State Parks treats Class 3 differently from Class 1 and 2.
Things to do on an eBike in Fremont County →
eBike shops by city
Cards are grouped by town below. Each town page carries the same shops with links to their detail listings.
Where to ride in Fremont County
Idaho State Parks lists the Ashton to Tetonia Trail at 29.6 miles, on a former Union Pacific right-of-way between Ashton and Tetonia. Its trail page says Class 3 eBikes, motorized ATVs, OHVs, and vehicles are not permitted, asks users to watch their speed, and says the Ashton trailhead is 54 miles northeast of Idaho Falls.
At the time we read it, the park page said the section between the Fall River Trestle and the Grainville parking lot had overgrown vegetation, so check the page for the current status before you ride that stretch.
Harriman State Park, in the Greater Yellowstone area near Island Park, offers 22 miles of hiking, mountain biking, and horseback trails, and the park page says to stay on official park trails. Idaho State Parks allows Class 1 and Class 2 eBikes in state parks and does not address Class 3.
eBike rules in Idaho
Idaho defines three classes of electric-assisted bicycle in Idaho Code § 49-106. The bike needs fully operable pedals and a motor under 750 watts. A Class 1 motor helps only while you pedal and stops helping at 20 mph. A Class 2 motor may drive the bike by itself and cannot help at 20 mph. A Class 3 motor helps only while you pedal and stops helping at 28 mph. Under § 49-727, makers and distributors must label each bike with its class, top assisted speed, and motor wattage.
Under § 49-725, an electric-assisted bicycle carries the safety requirements of a bicycle, and its rider has a bicyclist's rights and duties. Under § 49-726, the bike is outside the Title 49 rules on driver's licenses, titles, registration, license plates, and financial responsibility, and counts as a motor vehicle only as far as 23 U.S.C. 154 requires. Section 49-714, amended in 2026, gives riders the rights and duties of a driver and requires due care, and § 49-615 requires drivers to use due care around them. Under § 49-729, a rider's violation of those chapters is an infraction.
Sections 49-725 and 49-728 let an electric-assisted bicycle go anywhere a bicycle may go, multiuse paths included, unless a local ordinance excludes it or the public agency in charge posts a sign after putting the change on a governing-board agenda. Each city, county, park, and land manager therefore sets its own path rules. We found no statewide eBike helmet rule and no minimum operator age. The helmet statute, § 49-666, covers riders under 18 on motorcycles, motorbikes, UTVs, and ATVs, and § 49-114 says a motorbike does not include an electric-assisted bicycle. Read our Idaho eBike laws guide, then the sign at the trailhead.
Cities in Fremont County
Open the page for the town you plan to visit: eBike shops in St. Anthony and eBike shops in Island Park. Open the town where you plan to stay.
Frequently asked questions
Are Class 3 eBikes allowed on the Ashton to Tetonia Trail?
No. Idaho State Parks says Class 3 eBikes, ATVs, and OHVs are not permitted on the trail.
How long is the Ashton to Tetonia Trail?
Idaho State Parks lists 29.6 miles.
Which Fremont County listings mention eBikes?
The directory files InstaGear Outdoor Co., in St. Anthony, as an electric bicycle store, and Mack's Inn River Adventure and eBike Rental names eBike rentals.
How many miles of trail does Harriman State Park have?
Idaho State Parks lists 22 miles of hiking, mountain biking, and horseback trails.
Can I ride an Idaho eBike without a helmet?
Yes, you can legally ride without one under the state sections we read, since § 49-666 is limited to motorcycles, motorbikes, UTVs, and ATVs. Local rules can differ, so check the sign at your trailhead.
