Rad Power Bikes RadCity Step-Thru 3 vs Super73 ZX

Fuel	Electric	Electric
Motor	--	Class-1 Mode Output: 750 watts nominal / 1200 watt peak Class-2 Mode Output: 750 watts nominal / 1200 watt peak( Default) Class-3 Mode Output: 750 watts nominal / 1200 watt peak Unlimited Mode Output: 750 watts nominal / 1350 watt peak
Load Carrying Capacity	--	325lbs
Top Speed	--	32 kmph
Speed	--	Class-1 Mode: up to 20mph (throttle deactivated, pedal assist only) Class-2 Mode: up to 20mph Class-3 Mode: up to 28mph (throttle deactivated, pedal-assist only) Unlimited Mode: up to 28mph
Riding Modes	--	4 modes (ECO, TOUR, SPORT, SUPER)
Battery	48V, 14 Ah (672 Wh) with Lithium NCA 18650 Samsung 35E cells, rated for 800 charge cycles	615 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) 5A sold separately (2-3 hour charge time)
Display	Backlit LCD with charge indicator, speedometer, odometer, trip odometer, pedal assist level, wattmeter, and more	Transflective Monochrome LCD + Mobile Device
Frame	6061 aluminum Size : 14"	6061 / 7005 aluminum alloy, 1-1/8” to 1.5” tapered head tube
Stem	Zoom, 60º angle adjustment, 100 mm length, 88 mm height adjustment	--
Handle Bar	Custom formed aluminum Height : 42-45" (adjustable) Reach : 13.5"	--
Fork	Suntour spring fork with lockout and preload adjustment, 80 mm travel, 100 mm hub width, 9 mm quick release	--
Seats	--	Extended length seat
Seatpost	Promax, 340 mm x 27.2 mm Clamp : Quick release Diameter : 27.2 mm	--
Grip	Durable Imitation Leather Ergonomic Grips	--
Crankset	46T, 170 mm ProWheel Pioneer forged alloy, dual-sided aluminum bashguard Length : 170 mm	--
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 16T rear cog / Optional: 10-speed gearing (11-36T) sold separately, available for purchase fall 2020.
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	10-speed Shimano Zee sold separately (available Q4 2021)
Hub Rear	--	9 x 135mm, steel axle
Spoke	12-gauge stainless steel	--
Chainrings	--	5mm alloy crank arms, 36T chainring 10-speed w/44T sold separately (available Q4 2021)
Sprocket	--	Rear: Single-speed 16T rear cog 10-speed sold separately (11-36T) (available Q2 2022)
Bottom Bracket	--	120mm sealed bearing, square taper

Front	Rad Power Bikes by Kenda K-Rad 26" x 2.3", K-Shield puncture-resistant liner	Trooper Tires - 20x4"
Rear	Rad Power Bikes by Kenda K-Rad 26" x 2.3", K-Shield puncture-resistant liner	Trooper Tires - 20x4
Wheel / RIM	Weinmann Goliath, alloy, double wall, 36H	Rims: 20”x100mm alloy with lightning cutouts

Front	--	Mechanical 180/180mm rotors
Rear	--	Mechanical 180/180mm rotors
Brake Lever	Aluminum alloy comfort grip levers with motor cutoff switch and integrated bell	--

Front	--	--
Rear	--	--

Colors

--

Moon Rock Storm Gray

Length	1778 mm	--
Height	432 mm	--
Weight	29 kg	28.3 kg
Handlebar Width	600	--
Seat Height	838	310
Wheelbase	1118 mm	--

Features	- Lights : Front : Standard Rad Power Bikes LED headlight Rear : Integrated taillight with brake light - USB Ports : Display: 5V, 1 Amp - Puncture-Resistant Tires - Reflective Sidewall Striping - Integrated Rear Rack - Low-Step Frame Design - Battery Life : A fuel gauge for your electrons. - Odometer - Speedometer - Wattmeter	Trooper Tires Better Ergonomics All-New Seat Next Generation PowerTrain Multi-Class Ride Modes Super73 App Ready Smart Display Turn-by-turn navigation Multi-Class Ride Modes
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 : 4'10" - 6' Dropout Width : Front : 100 mm Rear : 135 mm Bottom Bracket Shell Width : 68 mm Square taper bottom bracket Seat Tube Length : 14.5" Headtube : 7" Chainstay : 18" Max Tire Width : 2.3" Payload Capacity : 125 kg Rear Rack Capacity : 20 Kg	--