Rad Power Bikes RadRunner Max

2026 UrbanUtility Electric bicycle Manufacturer page

Rad Power Bikes RadRunner Max, color Deep Emerald Green

Last known price: $2,299

Prices shown first for United States
Fork travel: 80 mm
Wheels: 20″
Drivetrain: 1 × 8 50t / 11–34t
Gear range: 309%
Battery: 672 Wh
Weight: 37.2 kg 82.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

One Size 150–188

Components

3 of 23 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Aluminum Not identified

Electric system

4 parts

Battery

Safe Shield Semi-Integrated Battery (14 Ah), 672 Wh, Certified by ACT to UL 2271 Not identified
Charger
- Rad Power Bikes
Display
- Rad Power Bikes
Motor

Rear hub 750W 90 Nm, Stated wattage is the manufacturer’s rated power capacity. Actual power-to-ground wattage is under 750W to ensure ebike regulatory compliance and may vary depending on riding conditions. Not identified

Suspension

1 part

Fork

Exsho suspension, 80mm, tapered, thru Not identified

Drivetrain

4 parts

Cassette

8 speed 11-34T Not identified
Crankset

50T with dual-sided aluminum chainring guard, 170 mm crank arms Not identified
Rear derailleur

8 speed Not identified
Shifters
- Shimano

Brakes

2 parts

Brakes

Gemma Hydraulic GA-1000B Not identified

GA-1000B
Disc rotors

180mm x 1.8mm, 6 bolt. Not identified

Wheels and tires

1 part

Tires

Custom Rad tire 20" x 3.5" with puncture protection and reflective stripe, Multi-surface tread pattern Not identified

Cockpit and contact points

6 parts

Grips

Lock-on ergonomic comfort grips Not identified
Handlebar

Aluminum, 28" (71.1 cm) wide Not identified
Pedals

Forged aluminum platform, CrMo axle with reflectors, standard 9/16" x 20 TPI threading Not identified
Saddle

Lightly padded flat touring saddle Not identified
Seatpost

Aluminum alloy 390 mm x 27.2 mm Not identified
Stem

50 mm + 30º (35 mm rise) Not identified

Other components

4 parts

Bell

Handlebar mount Not identified
Fenders

Full-coverage front and rear, hardware included Not identified
Lights

The headlights turn on automatically, so you won’t forget — and thanks to the ambient light sensor, they’ll activate when your surroundings get dim. Not identified
Racks

Integrated, 120 lb (54 kg) carrying capacity Not identified

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size One Size

Table

Geometry diagram unavailable

The drawing needs stack, head tube angle, seat tube angle, head tube length, chainstay length and bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	351
Seat tube lengthmm	445
Wheelbasemm	1189
Standover heightmm	432

Not published by the manufacturer: Stack, Top tube length, Head tube length, Head tube angle, Seat tube angle, Chainstay length, Front center, Bottom bracket drop, Bottom bracket height, Fork rake, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 37.2 kg

82.0 lb

Suspension

Suspension configuration: Hardtail
Front travel: 80 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 50
Largest chainring: 50
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 29.4 in
Highest gear: 90.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 672 Wh

Additional specifications

Battery: Safe Shield Semi-Integrated Battery (14 Ah), 672 Wh, Certified by ACT to UL 2271
Tire width: 3.5″
Wheel size: 20″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.3 km/h
Highest gear: 34.8 km/h

Total gear range 309%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 29.4–90.9 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2026 builds
Specification	This bicycle Rad Power Bikes RadRunner Max	Rad Power Bikes RadRunner	Rad Power Bikes RadRunner Plus
Frame
Bicycle weight	37.2 kg	29.5 kg	35 kg
Fork material	Not informed	Steel	Not informed
Suspension
Suspension configuration	Hardtail	Rigid	Hardtail
Front travel	80 mm	Not informed	65 mm
Drivetrain
Smallest chainring	50	52	52
Largest chainring	50	52	52
Rear sprockets	8	1	7
Smallest sprocket	11	16	11
Largest sprocket	34	16	34
Lowest gear	29.4 in	65.0 in	30.6 in
Highest gear	90.9 in	65.0 in	94.6 in
Cockpit
Shifting	Mechanical	No shifting	Mechanical
Electric bicycle systems
Battery capacity	672 Wh	624 Wh	624 Wh
Other specifications
Suspension	Hardtail	Rigid	Hardtail
Tire width	3.5″	3.3″	3.3″