ALL Electric 
In the full review (9 sections)
I haven’t ridden the Rad Power Bikes Radster Trail. This profile is built from Rad’s official product page, checked on Oct 23, 2026, and I explain what each number means.
Should you buy one?
On paper, the Radster Trail is a strong off-road-leaning e-bike for $1,999.99 (as of Oct 23, 2026). Rad lists a 750W rear hub with 100 Nm of torque, a 720Wh battery, a torque sensor, hydraulic disc brakes, an 80mm suspension fork, 27.5 x 3.0 in tires and class 1 to 3 settings. The trade-offs: it’s 77.5 lb, the fork is the only suspension, and the rack holds 55 lb.
Quick specs
| Spec | Rad Radster Trail |
|---|---|
| Motor | 750W rear hub, 100 Nm |
| Battery | 15Ah, 720Wh, Samsung 50GB or LG M50LT cells, UL 2271 |
| Rated range | 25-65 mi |
| Top speed | 28 mph |
| Class | Switchable 1 to 3, ships Class 2 |
| Pedal assist | Torque sensor, 5 levels plus zero |
| Throttle | Half twist |
| Brakes | Hydraulic disc, 180mm rotors |
| Suspension | Hydraulic fork, 80mm travel, thru axle |
| Drivetrain | Shimano 1x8 |
| Tires | Kenda Havok 27.5 x 3.0 in, puncture protection |
| Weight | 77.5 lb; 68.5 lb without battery |
| Payload | 370 lb (290 lb max rider) |
| Rear rack | 55 lb |
| Lights | 450 lumen headlight; taillight with brake light and turn signals |
| Display | Color, with fob or passcode lock |
| Weather | IPX6 |
| Price | $1,999.99 (as of Oct 23, 2026) |
Sources: Radster Trail product page, checked Oct 23, 2026. Rad offers two frame sizes; the page I read lists 4’11” to 5’8” for the Regular frame.
Pros and cons (from the specs)
Pros
- 100 Nm of torque for hills
- 720Wh battery
- Torque sensor plus throttle
- Hydraulic brakes and 80mm fork
- Turn signals and brake light
- IPX6 weather protection
- Two frame sizes
Cons
- 77.5 lb is heavy
- Front suspension only
- 55 lb rack is modest
- 290 lb max rider
What the specs mean on the road
750W, 100 Nm. 100 Nm is a lot of torque for a hub motor. It’s what gets you up steep dirt climbs without much effort. Rad notes the power-to-ground is under 750W for compliance.
720Wh, 25-65 miles. That’s a big battery. The 25-mile low end is what you’d expect with heavy throttle on hilly trails; 65 is low assist on easy ground.
Torque sensor. Assist builds as you push harder, which helps control on loose dirt.
80mm fork, thru axle. Enough for gravel and rooty trails, not real mountain biking. The thru axle stiffens the front end.
27.5 x 3.0 in tires. Mid-fat: grippier and softer than a commuter tire, lighter-steering than a 4 inch fat tire.
77.5 lb. It’s planted, but hard to lift onto a car rack. Pull the battery to get to 68.5 lb.
Class 1 to 3. Ships in Class 2 (20 mph). You can unlock 28 mph pedal assist where it’s legal.
How it compares to bikes I’ve reviewed
- Cyrusher XF900: the dual suspension dirt bike I tested, where I felt 750W wasn’t enough for its weight. The Radster Trail lists 100 Nm, but I haven’t ridden it to compare.
- Rad RadRunner 3 Plus: Rad’s utility bike I reviewed.
Who it’s for
- Riders who mix gravel, dirt trails and pavement
- Hilly areas
- Riders under 290 lb who want torque and range
Who should look elsewhere
- Riders who want rear suspension
- Anyone who needs to lift the bike often
Price
$1,999.99 on Rad’s site as of Oct 23, 2026.
