This post is a practical technical reference for the 72V ONYX.

It combines:

  • Real performance specifications
  • Battery and controller operating limits
  • Weight, tires, and electrical details
  • IP (water and dust) protection ratings
  • Safe motor, battery, and controller temperature ranges

It starts with a quick overview, then moves into detailed specifications and advanced thermal guidance for high-power riding.

Performance Levels

ModekWHP
Stock7.29.6
Sicko Mode2026.8
Jaws Mode47.263.4

Temperature Limits

ComponentMax
Controller212°F
Motor338°F
Battery160°F (BMS cutoff ~140°F)

Weight & Load

ItemValue
Bike145 lb
Bike without battery110 lb
45Ah battery35 lb
Max load385 lb
Rear rack40 lb

Dimensions

BikeLongWideTall STDTall STY
ONYX 72V68" (5.67')27" (2.25')40" (3.33')38" (3.17')
SeatValue
Seat Size19" long × 7" wide × 4" high
Seat Foam Thickness2"
Seating Length16"
Seat Travel Adjustment3.2"
Standard Seat Height33"
Shorty Seat Height31.5"
TireValue
Tire Diameter23" front / rear

Materials

ItemValue
Bike frameSteel 1020 / 1026 DOM
Rear swing armSteel 1020 / 1026 DOM
45Ah battery caseSteel 1020 / 1026 DOM
HandlebarsAluminum 6061-T6
Front forksSteel 1020 / 1026 DOM
Rear suspensionSteel 1020 / 1026 DOM
Rear rackSteel 1020 / 1026 DOM

Tires

ItemValue
Pressure32-35 PSI
Tube2.75"-3.0"

Battery Operating Range

ItemValue
Full voltage83-84 V
Empty voltage60 V
Storage voltage72-79 V
Charge temperature<105°F
Max regen40 A
Charge connectorXLR (XT60) 16 AWG
Discharge connectorSB50 (≤2024), QS8 (2025+) 8 AWG

Battery Specifications

BatteryVoltageContinuousPeak / Pulse
ONYX 45Ah72V120 A180 A
ONYX 41Ah72V90 A120 A
ONYX 38Ah72V80 A100 A
ONYX 23Ah72V50 A70 A
  • Peak: 0.5 to 5 seconds
  • Pulse: 5 to 30 seconds

Battery Cell Specifications

PackCellChemistryCycles
ONYX 45AhTenpower 50SGNCA~700
ONYX 41AhKOK 45NMC~700
ONYX 38AhLG MH1NMC~500
ONYX 23AhPanasonic NCRPFNMC~500

Controller Summary

ItemValue
Stock tuneEco 750 W / Normal 3 kW / Sport 7.2 kW / Sicko 20kW
0-30 mph~4.0 s

Headlight Wires

Bike WiresDesignationNotes
BlackNegative
YellowDLR CircleAlways on 12v
BlueHigh Beam

Taillight Wires

Bike WiresDesignationNotes
BlackNegative
BlueTaillight dimAlways on 12v
RedTaillight brighter

Brake Disc Measurements

PartMeasurements
Rear Disc220 mm × 2 mm, PCD: 6×44 mm, CB: 32 mm

A 220 mm brake disc is 220 mm across and 2 mm thick. A PCD of 6×44 mm means it uses six bolts arranged on a 44 mm circle and must match your hub. A 32 mm center bore is the size of the hole in the middle that centers the disc on the hub.

Ratings

Battery

YearModelIPImpact
202545Ah55C4
202241Ah55C4
201823Ah55C4

Motor

YearsModelIP
2018-2022QS205 V3 / V3Ti65

Controller

YearsModelIP
2018-2025Kelly 723067

Display

YearsPartIP
2018-2025CT-22 Display67

Temperatures

This section shows the allowable temperature limits for the core 72V system parts, including the battery pack, controller, and motor,.

Fahrenheit

ComponentGoodOkayHigh
Motor120°F150°F248°F
Controller110°F130°F176°F
Battery90°F100°F130°F

Celsius

ComponentGoodOkayHigh
Motor48°C65°C120°C
Controller43°C54°C80°C
Battery32°C37°C54°C

Motor Temperature

ONYX hub motors use NdFeB neodymium magnets.

Key thresholds:

  • 120°C / 248°F -> ideal sustained ceiling
  • 150°C / 302°F -> caution zone
  • 180°C+ / 356°F -> insulation + magnet damage risk
  • 200°C+ / 392°F -> permanent demagnetization likely

Magnet Loss Reference

Condition°C°F
Cutoff170338
Caution150302
High120248
Okay90194
Good60140

Battery Temperature

Best practice:

  • Charge and store between 50°F-86°F (10°C-30°C)

Cold reduces range. Heat accelerates aging.

Condition°C°F
Cutoff60140
High54130
Okay43110
Good2577
Minimum032

Do not store below 32°F for more than a few hours.

Controller Temperature

Controller heat is easiest to manage with airflow.

Condition°C°F
Cutoff100212
High80176
Okay70158
Good50122

External mounting and airflow dramatically increase safe sustained power.

Hardware, Tool, Torque

Brakes

PartHardwareToolTorque
Front Caliper Mounting Plate TopM8 x 35mm13mm Socket30nm
Front Caliper Mounting Plate BottomM8 x 40mm13mm Socket30nm
Front Caliper Mounting PlateM8 x 35mm13mm Socket30nm
Rear Brake Caliper Mount ScrewsM65mm Hex12nm
Rear Brake Caliper Adjuster ScrewsM65mm Hex12nm
Rear Brake Caliper Cable Stay ScrewM65mm Hex12nm

Wheels

PartHardwareToolTorque
Front Axle NutsM12 Hex Nut19mm Socket45nm
Rear Axle NutM16 Hex Lock Nut24mm Socket30nm
Rear Axle Lock NutM16 Hex Lock Nut24mm Socket30nm
Rear Axle Stay ScrewM6-1 x 16mm + M6 Hex Nut10mm + 5mm Hex12nm

Suspension

PartHardwareToolTorque
Triple Tree Fork ClampM8 x 45mm6mm Hex30nm
Rear Swingarm Mounting HardwareM8 x 25mm + M8 Nyloc Hex Nut13mm Socket + 6mm Hex30nm
Upper Shock NutM8 Acorn Hex Nut13mm Socket30nm
Lower Shock NutM8 + M8 Hex Nut13mm Socket30nm

Pedals

PartHardwareToolTorque
Pedal Shaft Cotter Pin NutM8 x 45mm6mm Hex30nm
Pedal ShaftM8 x 25mm + M8 Nyloc Hex Nut13mm Socket + 6mm Hex30nm

Steering and Handlebars

PartHardwareToolTorque
Steering Stem Lock NutM20 Hex Nut30mm Socket22nm
Steering Stem Top NutM20 Hex Cap Nut30mm Socket40nm
Handlebar Clamp ScrewsM6 x 45mm + M6 Nyloc Nut10mm Socket + 5mm Hex12nm
Speedometer Display MountM4 Hex Nut7mm SocketHandtight
Speedometer Display Bracket ClampM6 x 12mm + M6 Hex Nut10mm Socket + 5mm Hex12Nm
Left Control Internal Handlebar ScrewsM5 x 10mm#2 Philips Screwdriver7Nm
Left Control External Casing ScrewsM5 x 22mm#2 Philips Screwdriver7nm
RIght Control, Front Brake Banjo NutM8 Hex Nut13mm Socket12nm
Right Control, Front Brake Mount Clamp ScrewM5 Hex Nut8mm SocketHandtight
Right Control, Throttle/Kill Switch Clamp ScrewM4 x 20mm3mm HexHandtight
Headlight Ears Clamp BoltM6-1 x 25mm10mm SocketHandtight
Headlight Side Mount BoltsM6-1 x 15mm10mm SocketHandtight

Body Panel & Accessories

PartHardwareToolTorque
Body PanelsM5-0.8 x 6mm4mm Hex KeyHandtight
Seat MountsM6 Hex Nut10mm SocketHandtight
Front Fender MountsM6 x 25mm10mm Socket12nm
Rear Fender MountsM6 x 16mm + M6 Hex Nut10mm Socket12nm
Rear Rack Shock MountsM8 Acorn Hex Nut13mm Socket30nm

Electronics

PartHardwareToolTorque
Body PanelsM5-0.8 x 6mm4mm Hex KeyHandtight
Seat MountsM6 Hex Nut10mm SocketHandtight
Front Fender MountsM6 x 25mm10mm Socket12nm
Rear Fender MountsM6 x 16mm + M6 Hex Nut10mm Socket12nm
Rear Rack Shock MountsM8 Acorn Hex Nut13mm Socket30nm
Rear Rack Frame MountsM6 x 16mm10mm Socket12nm

Final Advice

Use voltage wisely.

Respect temperature limits.

Monitor motor heat when increasing amps.

Charge batteries cool.

And remember:

Water-resistant is not waterproof.

A cool ONYX is a fast ONYX, and a long-lasting one.