Specifications

Frame
Bottom bracket: 122 mm

Seat post: 28.6 mm; quick-release clamp

Wheels
Rims: 26 in x 4 in, pinned construction [Source: Lon McClure, Sondors Storm Owners Group, Facebook]

Spokes: Chrome

Tubes: Schrader valve

Tires: Chaoyang

Drivetrain
Pedals:

Cranks: Prowheel 170

Chainring: 40T

Chain: KMC Rustbuster

Motor
Bafang RM G06.350.D

Connector Size	Rear Motor

Brake	Disc Brake

Weight	≤4.6 kg

Installation Widths	170-190 mm

Max. Housing Diameter	≥ 158.5 mm

Cabling	Shaft Center, Right

Spoke Specification	12G/13G

Construction	Geared Motor

Nominal Voltage	36/48V

Rated Power	250-750 W

RPM	180-420

Max Torque	60-80 N.m

Efficiency	≥80

Further Specifications

Cadence (Pulses/Cycle)	6/1

Reduction Ratio	1:5

Magnet Poles	20

Noise	＜55 dB

Hall Sensor	optional

Connector	optional

Tests & Certifications

IP-Code	IP 65

Compliance	ROHS

Label	CE

Battery
Manufacturer/Model: Samsung cells, model number 10S4P-1CR18650-22P

Composition: Lithium-Ion

Nominal voltage: 36 V

Energy: 316.8 Wh

Capacity: 8.8 Ah

[Source: photo of battery data plate by Bruce Choate in Sondors Storm Owners Group on Facebook]

Controller
Model: KT36ZWS-LD01

Rated voltage: 36 V DC

Rated current: 10 A

Low voltage protection: 30 V DC +/- 0.5 V

Maximum current: 15 A +/- 1 A

Inputs: thumb throttle, pedal assist sensors (positioned next to chain-side crank)

Speed set: 1-4.2 V

Safety cut-off: brake levers cabled to controller; sensors disable controller output when either brake is applied

Brake input: Low-level

Pedal assist: Functions whenever the battery is installed and the battery switch is on (and the throttle LEDs are on). The only level of pedal assist is "mild." Use the throttle while pedaling for more assistance. [Source: Mike Ritchie, Sondors Storm Owners Group, Facebook]

Charger
Manufacturer: Sans Electronic Co., LTD

Model: SSLC084V42

Input: 100 V - 240 V AC; 1.8 A max

Output: 42.0 V DC; 1.8 A