C3STROM Astro Pro vs Felt Surplus 50 2020

Fuel	Electric	Electric
Motor	BAFANG 750W, 80Nm Rear hub integrated wheel	--
Range	78 miles per charge(Estimate)	--
Charging Time	Full charge in 4-5 hours	--
Top Speed	32 kmph	--
Speed	28 Mph – Class 3 Mode 32 Mph – Off-road Mode	--
Battery	Removable Lithium-ion 1040WH SAMSUNG 21700 cells	Shimano E8020, 500Wh integrated
Charger	4A	--
Controller	35A Peak Frame-integrated	--
Display	3.5 inch LCD display	--
Frame	6061 Aluminium alloy	Felt 27.5+, Shimano e-bike design, 6061 aluminum, fully integrated down tube, Control Taper integrated head tube, post disc mount, replaceable derailleur hanger, 12 x 148 mm Syntace style thru axle
Stem	--	Devox, ±7¡ rise, ¯31.8 mm with Cr-Mo bolts, 35 mm length
Handle Bar	--	Devox E-MTB 6061 butted riser, ¯31.8 mm, 25 mm rise, 9¡ sweep, 780 mm wide, custom internal wire routing
Fork	--	Rockshox Recon RL Solo Air, 130 mm travel, 15 x 110 mm Boost, E-Bike specific
Seatpost	--	KS 900 i dropper with Westie, ¯30.9 mm, SM/ MD: 100 mm travel, LG/XL: 125 mm travel
Grip	--	Devox Pauley Grip, lock-on
Crankset	56T, 170 mm	Shimano E8000, 34T, SM/MD 165 mm, LG/XL: 170 mm
Pedals	Wellgo platform pedals	--
Pedal Assist System	Intelligent 5 level Pedal Assist	--
Chain	KMC Z7	KMC X10-E, 10-speed
Shifters	Shimano ASLRS45R7AT twist shift, 7 speed harness	Shimano Deore M6000, 1 x 10
Saddle	Ultra long seat filled with silicone	Devox MTB
Headset	--	FSA sealed cartridge bearings, semi-integrated, No.57, 1.125 - 1.5"
Derailleur Rear	Shimano 7 Speed	Shimano Deore, 10-speed, Shadow Plus, long cage
Hub Front	--	Shimano MT400, 12 x 148 mm Boost thru axle, Center Lock, 32H
Hub Rear	--	Shimano MT400, 15 x 110 mm Boost thru axle, Center lock, 32H
Spoke	--	2.0 mm butted stainless steel
Cassette	--	Shimano, 10-speed, 11-42T
Bottom Bracket	Height :10.5"	--
Headlamp	130 Lux headlight with high and low beam Front left & right turn signals	--
Taillamp	LED taillight with integrated turn signals and brake light	--

Front	20 inch x 4.25 inch Anti-puncture tires	Maxxis Rekon+, Dual, tubeless ready, 27.5 x 2.8"
Rear	20 inch x 4.25 inch Anti-puncture tires	Maxxis Rekon+, Dual, tubeless ready, 27.5 x 2.8"
Wheel / RIM	Spoke	E-Double wall, tubeless compatible, 35 mm inner width

Front	4-piston hydraulic brake, 180mm disc	Shimano MT400 hydraulic disc, 203 mm rotor
Rear	4-piston hydraulic brake, 180mm disc	Shimano MT400 hydraulic disc, 180 mm rotor
Brake Lever	--	Shimano

Front	--	--
Rear	--	--

Colors

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Dark Blue / Cyan

Length	1778 mm	--
Seat Height	825	--

Features	--	- Shimano E7000 drive system for electric-assist pedaling power - Lightweight, durable aluminum frame - Shimano shifting and braking components, and a RockShox fork
Additional Details	Throttle : Half twist throttle Rear Rack : 33Lb carrying capacity with optional adaptation custom carry bag and backup battery	Bottom Bracket : Shimano E7000 MTB drive, 250W output, 20 mph Seatpost Clamp : Felt single bolt, ¯34.9 mm Thru Axle : Rear: Felt leverless 12 x 148 x 166, thread: M12 x 1.0P x 18L, Syntace
Accessories	--	Battery charger