Summary
Mostly speed, motor size and tires, because the weight limit barely changes. GoTrax lists nine of the 13 bikes in its e-bike collection at 264 or 265 lb, the Alpine and Tundra fat-tire bikes at 300 lb, and the smaller Ranger 16 and Fitz16 kids' bike at 165 and 220 lb. Top speeds run from 15.5 mph on the CTI commuter to 28 mph on three models, and none of the product pages states a class.
Four GoTrax bikes compared
| CTI | F2 2.0 | Ranger | E-Cargo | |
|---|---|---|---|---|
| Wheels | 27.5 in | 20 x 3 in | 4 in fat tire | 26 x 3 in |
| Motor | 350W | 500W | 500W rear hub | 500W rear hub |
| Battery | 36V 7.8Ah (280.8Wh) | 48V 10.4Ah (499.2Wh) | 48V 10.4Ah | 48V 10.4Ah |
| Top speed | 15.5 mph | 25 mph | 25 mph pedal assist, 20 mph throttle | 20 mph |
| Claimed range | Up to 30 miles | Up to 50 miles | Up to 50 miles | Up to 50 miles |
| Weight | 66 lb | 58.3 lb | 69.7 (no unit given) | 61 lb |
| Weight limit | 264 lb | 264 lb (300 lb in another spot on the page) | 264 lb | 264 lb |
The collection's two 750W bikes, the Mustang and the Tundra, list up to 86 and 74 miles at 25 and 28 mph on their cards.
What 264 lb leaves for cargo
The limit covers the rider and everything carried. A 200 lb rider on a 264 lb bike has 64 lb left for a backpack, a lock, groceries and any accessories, and a 240 lb rider has 24 lb. The F2 page shows both figures, with "300 lbs" in the icon row and "Total Weight Limit 264lbs" in the spec table, and the collection card for the F2 says 264 lb.
The E-Cargo is named for its rear rack, and its total limit is the same 264 lb as the other bikes. GoTrax does not list a separate capacity for the rack or any passenger use on the E-Cargo page, which says only that the bike can "carry both you and your things." It also rides on 26 x 3 inch tires, not the 20-inch wheels of a compact cargo bike.
Speed without a class number
No GoTrax product page gives a class for its bike. The collection page says GoTrax bikes "are designed to follow the 3 Class System," and that its "Class 3 eBikes reach maximum speeds of 25 to 28 miles per hour on pedal assist and 20 miles per hour on throttle," without naming the models. The Ranger fits that pattern at 25 mph with pedal assist and 20 mph on the throttle, while the F3, Z4 Pro and Tundra list 28 mph on their collection cards.
The F2 page gives two speed figures, a top speed of 25 mph and speed settings that range "from 7 mph to 20 mph." The CTI is consistent, with five settings "ranging from 7 mph to 15.5 mph."
How GoTrax words safety certification
The CTI, F2 and Ranger pages say "In Accordance With UL 2849." The E-Cargo page has no UL wording. UL itself distinguishes a product certified to UL 2849 from one only tested to it, and a phrase like "in accordance with" does not say which applies or name the lab.
Sources
- GoTrax: Electric Bikes
- GoTrax: CTI Commuter E-Bike
- GoTrax: F2 Foldable Electric Bike 2.0
- GoTrax: Ranger Electric Bike
- GoTrax: E-Cargo Electric Bike
- GoTrax: FAQ
- UL Solutions: Is There an E-Bike in Your Future?
Data checked, sources, and what we did not test
Data checked: 2026-09-24. Figures and quotations were read on that date from the pages listed under Sources and can change without notice.
Sources: manufacturer, retailer and public-agency pages, listed above. No review sites, forums or retailer ratings were used.
What we did not test: ride quality, brake feel, real-world range, durability and customer service. We have not ridden these bikes and publish no ratings or rankings.