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Euphree Solar Sparrow

The Euphree Solar Sparrow is an electric bike with a 48V 10.5Ah pack, a 750 W Bafang Hub Motor, a stated top speed of 28 mph (Class 3), 504Wh of energy, a weight of 59.5 lbs and a load capacity of 300 lbs.

Last updated: 22 October 2026

Motor and performance

Top speed
28 mph (Class 3)

Row from the maker’s page: “Top Speed” | “28 mph (Class 3)”

Source: euphree.com/products/solar-sparrow-chain

Claimed range
Sources disagree
  • 50 Miles

    “28 MPH Top Speed Class 3 50 Miles Range up to 300 lbs Max Payload”

    Source: euphree.com/products/solar-sparrow-chain

  • Up to 50 miles

    Row from the maker’s page: “Range” | “Up to 50 miles”

    Source: euphree.com/products/solar-sparrow-chain

Payload capacity
300 lbs

Row from the maker’s page: “Max Payload” | “300 lbs”

Source: euphree.com/products/solar-sparrow-chain

Assist sensor
Torque & Cadence

Row from the maker’s page: “Sensors” | “Torque & Cadence”

Source: euphree.com/products/solar-sparrow-chain

Controller
48V / 25A

Row from the maker’s page: “Controller” | “48V / 25A”

Source: euphree.com/products/solar-sparrow-chain

Throttle
Left Thumb Throttle

Row from the maker’s page: “Throttle” | “Left Thumb Throttle”

Source: euphree.com/products/solar-sparrow-chain

Motor specification
750 W Bafang Hub Motor

Row from the maker’s page: “Motor” | “750 W Bafang Hub Motor”

Source: euphree.com/products/solar-sparrow-chain

What the assist responds to
Torque & Cadence

Row from the maker’s page: “Sensors” | “Torque & Cadence”

Source: euphree.com/products/solar-sparrow-chain

Battery and charging

Energy
504Wh

“750W, 85 Nm Torque 504Wh Battery 48V 10.5Ah LG cells”

Source: euphree.com/products/solar-sparrow-chain

Battery
48V 10.5Ah

“Battery 48V 10.5Ah LG cells”

Source: euphree.com/products/solar-sparrow-chain

Battery specification
48V, 10.5Ah (504Wh) Removable

Row from the maker’s page: “Battery” | “48V, 10.5Ah (504Wh) Removable”

Source: euphree.com/products/solar-sparrow-chain

Charger
48V, 2 Amp

Row from the maker’s page: “Charger” | “48V, 2 Amp”

Source: euphree.com/products/solar-sparrow-chain

USB port
Type-C Charging

Row from the maker’s page: “USB Port” | “Type-C Charging”

Source: euphree.com/products/solar-sparrow-chain

Brakes and safety

Brakes
Tektro E350 Hydraulic

Row from the maker’s page: “Brakes” | “Tektro E350 Hydraulic”

Source: euphree.com/products/solar-sparrow-chain

Brake rotors
180mm Front & Rear

Row from the maker’s page: “Rotors” | “180mm Front & Rear”

Source: euphree.com/products/solar-sparrow-chain

Headlight
200 lumens Dual Beam LED

Row from the maker’s page: “Headlight” | “200 lumens Dual Beam LED”

Source: euphree.com/products/solar-sparrow-chain

Taillight
Brake Signal, 220° Visibility

Row from the maker’s page: “Rear Light” | “Brake Signal, 220° Visibility”

Source: euphree.com/products/solar-sparrow-chain

Bell
Brass Signal Bell

Row from the maker’s page: “Bell” | “Brass Signal Bell”

Source: euphree.com/products/solar-sparrow-chain

Brake levers
Adjustable w/ motor cut-off

Row from the maker’s page: “Brake Levers” | “Adjustable w/ motor cut-off”

Source: euphree.com/products/solar-sparrow-chain

Frame and components

Crankset
160mm Alloy

Row from the maker’s page: “Crankset” | “160mm Alloy”

Source: euphree.com/products/solar-sparrow-chain

Front fork
Aluminum Rigid Fork

Row from the maker’s page: “Front Fork” | “Aluminum Rigid Fork”

Source: euphree.com/products/solar-sparrow-chain

Tires
Kenda Kwik Six 26” x 2.4”

Row from the maker’s page: “Tires” | “Kenda Kwik Six 26” x 2.4””

Source: euphree.com/products/solar-sparrow-chain

Rims
Double-Walled Aluminum

Row from the maker’s page: “Rims” | “Double-Walled Aluminum”

Source: euphree.com/products/solar-sparrow-chain

Spokes
13G Front / 12G Rear

Row from the maker’s page: “Spokes” | “13G Front / 12G Rear”

Source: euphree.com/products/solar-sparrow-chain

Chain
KMC Z7 Stainless Steel

Row from the maker’s page: “Chain” | “KMC Z7 Stainless Steel”

Source: euphree.com/products/solar-sparrow-chain

Derailleur
Shimano Altus

Row from the maker’s page: “Derailleur” | “Shimano Altus”

Source: euphree.com/products/solar-sparrow-chain

Shifter
Shimano 8 Speed Trigger Shifter

Row from the maker’s page: “Shifter” | “Shimano 8 Speed Trigger Shifter”

Source: euphree.com/products/solar-sparrow-chain

Freewheel
10-32T, 8 Speed

Row from the maker’s page: “Freewheel” | “10-32T, 8 Speed”

Source: euphree.com/products/solar-sparrow-chain

Pedals
Alloy w/ rubber grip

Row from the maker’s page: “Pedals” | “Alloy w/ rubber grip”

Source: euphree.com/products/solar-sparrow-chain

Stem
90mm Adjustable

Row from the maker’s page: “Stem” | “90mm Adjustable”

Source: euphree.com/products/solar-sparrow-chain

Handlebar
Aluminum Alloy, Curved Back w/ Rise

Row from the maker’s page: “Handlebar” | “Aluminum Alloy, Curved Back w/ Rise”

Source: euphree.com/products/solar-sparrow-chain

Grips
Ergonomic Locking Grips

Row from the maker’s page: “Grips” | “Ergonomic Locking Grips”

Source: euphree.com/products/solar-sparrow-chain

Saddle
Velo Plush Comfort

Row from the maker’s page: “Saddle” | “Velo Plush Comfort”

Source: euphree.com/products/solar-sparrow-chain

Seat post
SR Suntour NCX Suspension, 50mm travel

Row from the maker’s page: “Seatpost” | “SR Suntour NCX Suspension, 50mm travel”

Source: euphree.com/products/solar-sparrow-chain

Mudguards
Color Matched, Aluminum, Full Coverage

Row from the maker’s page: “Fenders” | “Color Matched, Aluminum, Full Coverage”

Source: euphree.com/products/solar-sparrow-chain

Display
Left-Side Color LCD

Row from the maker’s page: “Display” | “Left-Side Color LCD”

Source: euphree.com/products/solar-sparrow-chain

Kickstand
Aluminum Alloy, Adjustable Plastic Boot

Row from the maker’s page: “Kickstand” | “Aluminum Alloy, Adjustable Plastic Boot”

Source: euphree.com/products/solar-sparrow-chain

Rear rack
Integrated Aluminum, 35 lb capacity

Row from the maker’s page: “Rear Rack” | “Integrated Aluminum, 35 lb capacity”

Source: euphree.com/products/solar-sparrow-chain

Chainring
50T

Row from the maker’s page: “Chainring” | “50T”

Source: euphree.com/products/solar-sparrow-chain

Frame material
6061 Aluminum Alloy

Row from the maker’s page: “Material” | “6061 Aluminum Alloy”

Source: euphree.com/products/solar-sparrow-chain

Size and fit

Rider height
5'0" – 5'10"

Row from the maker’s page: “Rider Height” | “5'0" – 5'10"”

Source: euphree.com/products/solar-sparrow-chain

Weight
59.5 lbs

Row from the maker’s page: “Weight” | “59.5 lbs”

Source: euphree.com/products/solar-sparrow-chain

Total length
71"

Row from the maker’s page: “Total Length” | “71"”

Source: euphree.com/products/solar-sparrow-chain

Wheelbase
44"

Row from the maker’s page: “Wheelbase” | “44"”

Source: euphree.com/products/solar-sparrow-chain

Standover height
15.5"

Row from the maker’s page: “Standover Height” | “15.5"”

Source: euphree.com/products/solar-sparrow-chain

Reach
16.5"

Row from the maker’s page: “Rider Reach” | “16.5"”

Source: euphree.com/products/solar-sparrow-chain

Seat tube
14"

Row from the maker’s page: “Seat Tube” | “14"”

Source: euphree.com/products/solar-sparrow-chain

Handlebar height
37-41" adjustable

Row from the maker’s page: “Handlebar Height” | “37-41" adjustable”

Source: euphree.com/products/solar-sparrow-chain

Saddle height range
30.5–38" adjustable

Row from the maker’s page: “Seat Min/Max Height” | “30.5–38" adjustable”

Source: euphree.com/products/solar-sparrow-chain

Warranty, returns and support

Buying a spare battery
10Ah Battery - Solar Sparrow

“Style 10Ah Battery - Solar Sparrow 14Ah Battery - City Robin 2022/X/X+ with 4-PIN Charger Connection”

Source: euphree.com/products/battery-pack

Sources

  • Solar Sparrow | Step Through Commuter Ebike | EuphreeArchived document

    Source: euphree.com/products/solar-sparrow-chain

    Retrieved October 12, 2026

  • City Robin X+ Ebike Battery – Extended Range Power | EuphreeArchived document

    Source: euphree.com/products/battery-pack

    Retrieved October 12, 2026