Rad Power Bikes RadCity 4 vs Super73 S1

Fuel	Electric	Electric
Motor	--	Class-2 500 watts nominal/1000 peak
Charging Time	--	2A (6-7 hour charge time) / Optional: 5A (3-4 hour charge time)
Load Carrying Capacity	--	275lbs
Top Speed	--	32 kmph
Riding Modes	--	3 modes (ECO, MID, HIGH) 3 modes (ECO, MID, HIGH)
Battery	48V, 14 Ah (672 Wh) with Lithium NCA 18650 Samsung 35E cells, rated for 800 charge cycles	768 watt-hours, 18650 cells
Charger	48V, 2 Amp Rad Power Bikes smart charger, operates on both 110V and 230V AC power outlets	2A (6-7 hour charge time) / Optional: 5A (3-4 hour charge time)
Display	Backlit LCD with charge indicator, speedometer, odometer, trip odometer, pedal assist level, wattmeter, and more	LCD Display
Frame	6061 aluminum Size : 18.5"	Steel
Stem	Zoom, 60º angle adjustment, 100 mm length, 88 mm height adjustment	--
Handle Bar	Custom formed aluminum Height : 45" Reach : 14.5"	--
Fork	Suntour spring fork with lockout and preload adjustment, 80 mm travel, 100 mm hub width, 9 mm quick release	--
Seats	--	Standard short seat
Seatpost	Promax, 350 mm x 27.2 mm Clamp : Quick release Diameter : 27.2 mm	--
Grip	Velo comfort rubber ergo	--
Crankset	42T, 170 mm ProWheel Pioneer forged alloy, dual-sided aluminum bashguard Length : 170 mm	140mm alloy crank arms, 36T chainring
Pedals	Assist : Intelligent 5 level pedal assist with 12 magnet cadence sensor Wellgo B087 CrMo axle, forged aluminum platform with reflectors, standard 9/16" x 20 TPI threading	--
Chain	KMC Z7	--
Shifters	Shimano SL-TX50-7R thumb shifter, 7-speed	--
Gear	--	Single-speed
Saddle	Velo Plush with lifting handle	--
Headset	Semi-integrated, 1-1/8" straight steerer tube	--
Derailleur Front	7-Speed Shimano Altus	--
Derailleur Rear	7-Speed Shimano Altus	--
Hub Front	--	9 x 135mm axle
Spoke	12-gauge stainless steel	--
Bottom Bracket	--	100mm, Square Taper, Sealed Cartridge Bearings
Headlamp	--	LED Halo headlight
Taillamp	--	Rear brake light

Front	Rad Power Bikes by Kenda K-Rad 26" x 2.3", K-Shield puncture-resistant liner	20 x 4”
Rear	Rad Power Bikes by Kenda K-Rad 26" x 2.3", K-Shield puncture-resistant liner	20” x 4” All-Terrain Tires
Wheel / RIM	Weinmann Goliath, alloy, double wall, 36H	Rims: 20" x 4" alloy with lightening cutouts

Front	--	Tektro hydraulic alloy disc brakes, 2 piston
Rear	--	Tektro hydraulic alloy disc brakes, 2 piston
Brake Lever	Aluminum alloy comfort grip levers with motor cutoff switch and integrated bell	--

Front	--	--
Rear	--	--

Colors

--

Black, White, Army Green, Tan

Length	1778 mm	--
Height	787 mm	--
Weight	29 kg	31.75 kg
Handlebar Width	700	--
Seat Height	711	300
Wheelbase	1092 mm	--

Features	- Lights : Front : Standard Rad Power Bikes LED headlight Rear : Integrated taillight with brake light - USB Ports : Display: 5V, 1 Amp - Wattmeter - Speedometer - Odometer - Battery Life : A fuel gauge for your electrons. - Puncture-Resistant Tires - Reflective Sidewall Striping - Twist Grip Throttle - Integrated Rear Rack	Removable battery Comes with aluminum cargo rack
Additional Details	Controller : 48V, 750W Hub Motor : 750W brushless Shengyi direct drive hub motor with regenerative braking, 40 Nm of torque Throttle : Half twist throttle Wiring : Water resistant connectors and wiring harness Brake Calipers : Tektro Aries (MD-M300) Brake Pad Material : Sintered metal Brake Rotors : Tektro 180 mm front and rear Fenders : Included, black plastic front and rear, full coverage Freewheel : DNP 7-speed freewheel, 11-34T Gearing : 1 x 7-speed Kickstand : Heavy-duty aluminum with wide plastic foot Racks : Front : Optional Rear : Integrated, 45 lb carrying capacity, 16 mm tubing diameter Recommended Rider Heights : 5'11"- 6'5" Dropout Width : Front : 100 mm Rear : 135 mm Bottom Bracket Shell Width : 68 mm Square taper bottom bracket Seat Tube Length : 18.5" Top Tube Length (effective) : 23" Headtube : 7" Chainstay : 18" Max Tire Width : 2.3" Payload Capacity : 125 Kg Rear Rack Capacity : 20 Kg	--