E-bikeOn sale
RadRunner Max
An e-bike with a 17″ step-over and a 275 lb rider limit.
- Motor
- 750W · 90 Nm
- Battery
- 672 Wh
- Range, claimed
- 60+ miles
- Top speed
- 28 mph
- Weight
- 82 lb
- List price
- $2,299
Available at
This goes to Rad Power Bikes's own page for this model. We earn nothing from it.
✓ Specs checked Sep 29, 2026against radpowerbikes.com · sources for each spec · 1 conflicting figure
Our scores
Cargo bike58 / 100
Ranks 5th of 10 ranked · see the top 10
Out of 100, from published figures only. How we score
Set your height and weight. We compare them with the limits Rad Power Bikes publishes.
Height
5′6″
168 cm
Weight
180 lb
82 kg
Rider height
4′11″ min6′2″ max
Weight and load
Rider 275 lbTotal 420 lb
Step-over, 17″
groundyour knee ▲
Bike: 82 lb
Specifications
Fit
- Step-over height
- 17″43 cmradpowerbikes.com ↗ · checked Sep 29, 2026
- Rider height
- 4′11″–6′2″150–188 cmradpowerbikes.com ↗ · checked Sep 29, 2026
- Seat height
- From ground: 31.5" - 43.3" (80 - 110 cm); From pedal bottom stroke: 28" - 37" (71.1 -…radpowerbikes.com ↗ · checked Sep 29, 2026
- Rider limit
- 275 lb125 kgradpowerbikes.com ↗ · checked Sep 29, 2026
- Total load
- 420 lb191 kg · rider plus cargoradpowerbikes.com ↗ · checked Sep 29, 2026
- Seats
- —
Motor
- Rated power
- 750Wradpowerbikes.com ↗ · checked Sep 29, 2026
- Peak power
- Not published by brandradpowerbikes.com ↗ · checked Sep 29, 2026
- Torque
- 90 Nmradpowerbikes.com ↗ · checked Sep 29, 2026
Battery
- Capacity
- 672 Whstated by brandradpowerbikes.com ↗ · checked Sep 29, 2026
- Voltage and amp-hours
- —
- Battery weight
- Not published by brandradpowerbikes.com ↗ · checked Sep 29, 2026
Range and speed
- Claimed range
- 60+ milesBrand publishes conflicting figures: Estimated 19-61+ miles per charge · 65 miles · 60+ miles. We use the figure least favourable to you.radpowerbikes.com ↗ · checked Sep 29, 2026
- Top speed
- 28 mph45 km/hradpowerbikes.com ↗ · checked Sep 29, 2026
- E-bike class
- Class 1, 2 or 3has a throttleradpowerbikes.com ↗ · checked Sep 29, 2026
Size and folding
- Folds
- Not published by brandradpowerbikes.com ↗ · checked Sep 29, 2026
- Folded size
- Not published by brandradpowerbikes.com ↗ · checked Sep 29, 2026
- Weight
- 82 lb37 kgradpowerbikes.com ↗ · checked Sep 29, 2026
- Wheels
- 20"radpowerbikes.com ↗ · checked Sep 29, 2026
Brakes and drivetrain
- Brakes
- Gemma Hydraulic GA-1000B; rotors 180mm x 1.8mm, 6 boltradpowerbikes.com ↗ · checked Sep 29, 2026
- Parking brake
- —
- Gears
- 8 speed (Shimano 8 speed trigger shifter, 8 speed 11-34T)radpowerbikes.com ↗ · checked Sep 29, 2026
- Rear differential
- —
- Reverse
- —
Comfort and safety
- Suspension
- Exsho suspension fork, 80mm, tapered, thruradpowerbikes.com ↗ · checked Sep 29, 2026
- Certifications
- Tested by ACT for compliance with UL 2849 and UL 2271radpowerbikes.com ↗ · checked Sep 29, 2026
Legal in your state
Can I ride it where I live?
Rad Power Bikes sells this as Class 1, 2 or 3, with a 28 mph top speed.
✓ Class 1, 2 or 3 e-bike in California
throttle, 28 mph
- License, registration
- No driver's license, registration, license plate or insurance is needed for a legal e-bike or e-trike, and it is not a motor vehicle.
- Helmet
- Riders and passengers under 18 must wear a bicycle helmet on any bike, including an e-bike.
- Minimum age
- Riders must be 16 or older to operate a Class 3. State law sets no minimum age for Class 1 or 2, but pilot laws let San Diego County and Marin County set local limits, listed under local rules below.
- Where you can ride
- E-bike riders have the same road rights and duties as bicyclists, including use of bike lanes.
Last verified Sep 2026 · Read the statute ↗ · Full California guide · Not legal advice.
✓ Class 1, 2 or 3 e-bike in New Jersey
throttle, 28 mph
- License, registration
- Riders 17+ need a valid driver's license of any class or a moped (e-bike) license/permit; riders 15-16 need a moped (e-bike) license or permit; bike-share renters 16+ are exempt.
- Helmet
- Motorized bicycle riders of every age must wear an approved helmet.
- Minimum age
- No one under 15 may ride a low-speed e-bike or motorized bicycle.
- Where you can ride
- Motorized bicycles may not use interstates, median-divided highways, roads posted over 50 mph, or the GSP/Turnpike/AC Expressway.
Last verified Sep 2026 · Read the statute ↗ · Full New Jersey guide · Not legal advice.
⚠ Check before buying
750W motor is over the under-750W limit.
- License, registration
- No driver license needed for any e-bike class.
- Helmet
- Riders and passengers under 16 must wear a bicycle helmet; no state helmet rule for 16+.
- Minimum age
- No statewide minimum age, but since July 1, 2025 cities/counties may set minimum ages and require riders to carry government photo ID.
- Where you can ride
- You may ride anywhere a regular bicycle is allowed, including streets, shoulders, bike lanes and multi-use paths.
Last verified Sep 2026 · Read the statute ↗ · Full Florida guide · Not legal advice.
⚠ Check before buying
28 mph is over the 25 mph limit.
- License, registration
- No driver's license, registration or insurance is needed for a legal Class 1-3 e-bike.
- Helmet
- All Class 3 riders must wear a helmet; for Class 1 and 2 no state helmet rule applies to adults (localities may require helmets).
- Minimum age
- Riders must be at least 16.
- Where you can ride
- E-bikes may be ridden on roads with a posted speed limit of 30 mph or less, and in bike lanes; Class 3 only in New York City.
Last verified Sep 2026 · Read the statute ↗ · Full New York guide · Not legal advice.
Compare with
Rad Power Bikes RadRunner Plus
| This e-bike | RadRunner Plus | |
|---|---|---|
| Step-over | 17″ | 16.5″ |
| Total load | 420 lb | 350 lb |
| Weight | 82 lb | 75 lb |
| Top speed | 28 mph | 20 mph |
Compare with
Rad Power Bikes RadRunner
| This e-bike | RadRunner | |
|---|---|---|
| Step-over | 17″ | 16.5″ |
| Total load | 420 lb | 320 lb |
| Weight | 82 lb | 65 lb |
| Top speed | 28 mph | 20 mph |
