Yes, the Tern GSD models come equipped with a second battery mount for either a 400wh or 500wh Bosch PowerPack. For models that are not dual battery compatible, but you can always purchase an extra battery and swap it out on longer rides when you need that extra charge.

Most Tern eBikes are not made for serious off-road adventures, though a ride through some hard-packed dirt shouldn’t hurt. The GSD and HSD models can usually handle gravel roads and such, but if you want something more capable off-road you might want a larger wheel.

Tern eBikes are high quality, and also relatively affordable. They cost anywhere from $2,999 to $9,299.

Tern offers a limited warranty on select components: 

Five years: frame, handlepost, and fork

One year: All Tern or BioLogic branded parts and components, except as noted below

Other: Any other parts or components are covered by the stated warranty of the original manufacturer of that part or component.

Extended 10-year warranties are offered on the frame, handlepost, and fork to first-time owners who sign up within 30 days of purchase. In addition, your bike must be assembled by an authorized Tern dealer at the time of sale, regardless of being purchased online or in a shop.

All the details of Tern’s warranty policy can be found Tern Warranty Details.

These bikes have a similar wheelbase to a full-sized bike, so these can still go on a car rack (unlike a front-loading cargo bike). Keep in mind the weight limits of your respective car rack. We usually recommend hitch mounted ones for cargo bikes

Terns weigh between 48 to 82 pounds (Terns are relatively lightweight when it comes to their cargo bike models.)

The GSD, HSD, and Quick Haul all have heavy-weight capacity rear racks and are considered eCargo bikes. The GSD rack can hold up to 220lbs, the HSD 130lbs, and the QuickHaul 110 lbs. A Yepp seat can be installed on any of these eBikes, and two can be installed on the GSD.

Adjustable components means one size fits all (unless you’re over 6 feet, five inches tall). Tern eBikes can fit a wider range of rider heights than a lot of eBike brands, a feature appreciated by those in the low five-foot range.

The GSD and HSD have low-step frames and a one-size-fits-most design that will fit riders 4’11” – 6’5” (Vektron 4’10” – 6’5”). The adjustable stem makes it easy to adjust your position to a more upright position or slightly more forward position depending on how you prefer to ride. On the QuickHaul, the handlebars have a telescopic stem so you can adjust it straight up and down depending on your height.