FAQ

X1 Pro Gen 4

The ultimate conversion kit for extreme power

For riders wanting maximum power with a feel between an eBike and a motorcycle, ideal for off-road, enduro, and utility builds.

X1 Pro Gen 4 Specifications:

• Power: Up to 5000W (X12 Controller)

• Torque: 280 N.m. peak

• Voltage: 36V-72V

• Chainrings: 32T-40T options

• Bottom Bracket: BSA 68/73/83mm, BSA 100mm, BSA 120mm & BB92 options

X1 Pro Gen 4 Features:

1. Brass internal gears for high torque with reduced noise

2. Advanced torque sensing for instant pedal assist and full throttle performance

3. Programmable via the CYC app for custom power tuning

4. Compatible with fatbikes and heavy-duty builds

5. Heat management and cooling design for sustained high power output

X1 Stealth Gen 3

The most versatile conversion kit for every style

Ideal for riders wanting power in a lightweight, quiet package, prioritising pedal assist with stealthy integration.

X1 Stealth Gen 3 Specifications:

• Power: Up to 1500W (X6 Controller)

• Torque: 150 N.m peak

• Voltage: 36V–52V

• Chainrings: 32T & 38T options

• Bottom Bracket: BSA 68/73/83mm & BB92 options

X1 Stealth Gen 3 Features:

1. Ultra-compact design for a clean and discreet look

2. Advanced torque sensing for a natural pedal feel

3. Low noise output for stealth commuting and trails

4. Programmable via app for customised assist profiles

5. Quick and simple installation without frame modifications

Photon Gen 2

Designed with subtlety, refined for adventure

Designed for riders wanting a quiet, low-maintenance, and legal-friendly mid-drive with expanded voltage compatibility.

Photon Gen 2 Specifications:

• Power: 250W/750W firmware versions (up to 2000W unrestricted)

• Torque: 135 N.m peak

• Voltage: 36V–72V

• Chainrings: 32T-50T options

• Bottom Bracket: BSA 68/73/83mm, BSA 100mm, BSA 120mm & BB92 options

Photon Gen 2 Features:

1. Quiet internal gear system for near-silent operation

2. Firmware switchable between street-legal and off-road modes

3. Advanced torque sensing for smooth pedal assist

4. Lightweight build (4.8 kg with crankset)

5. Motor temperature protection: gradual power reduction above 100°C

Yes, in most cases, but it’s important to always check your bottom bracket type and chainring clearance.

• Bottom bracket: Confirm your bike’s BB type and width to ensure it matches the kit options.

• Chainring clearance: Check that your frame has enough space for the chainring size you choose, especially around the chainstay area.

• Frame space: Ensure there is room to mount both the motor and battery, typically under the downtube or inside the triangle.

• Use our 1:1 printouts to confirm fit before ordering.

To measure your bottom bracket, download our printable template below:

To check both your bottom bracket size and the available chainring options for the Photon motor kit, download this measurement guide:

Still unsure? Share your bike’s brand and model with us (plus your riding style for more tailored advice) here.

Installation takes 30-45 minutes after your first attempt.

• Download the user manual and app/display guide here.

• Watch step-by-step installation videos on our YouTube channel.

All kits support BSA (English threaded) and BB92 press-fit options.

• X1 Pro: BSA 68/73/83mm, BSA 100mm, BSA 120mm, BB92 options

• X1 Stealth: BSA 68/73/83mm, BB92 options

• Photon: BSA 68/73/83mm, BSA 100mm, BSA 120mm, BB92 options

• PF30, BB30, BMX bottom brackets often fit with an adaptor.

• Measure shell width and inner diameter for compatibility.

• Check markings on your current BB if unsure.

For X1 Pro and Photon:

For X1 Stealth:

How do I check my bottom bracket type?

To check your bottom bracket type, you’ll need to measure three things:

1. The bottom bracket shell width of your frame

2. The inner diameter of the shell

3. The bottom bracket currently installed in your frame (if any)

If your frame does not have a crankset or bottom bracket installed, simply measure the shell width and inner diameter directly.

Use the reference images below to measure these dimensions accurately. Keep in mind that most bottom brackets are standard sizes, so approximate measurements are usually sufficient unless you have an unusual, older, or eccentric frame.

When measuring, focus only on the frame itself. Do not include any bottom bracket components such as cups or bearings in your measurements. You do not need to remove any parts from your bike unless you’re unsure about what you’re measuring.

Once you have your measurements, refer to the charts above to identify which option you need. If you want to double-check, you can also remove your current bottom bracket, look for any markings or model numbers, and check if it has threads. This can give you extra confidence in selecting the correct setup for your bike.

Choose based on ground clearance and chainstay clearance. Chainring size affects cadence, not motor torque or speed.

X1 Pro Gen 4 chainring options:

• 32T (11/53T motor sprocket)

• 38T (11/63T motor sprocket)

• 40T (11/72 motor sprocket)

X1 Stealth Gen 3 chainring options:

• 32T (11/53T motor sprocket)

• 38T (11/63T motor sprocket)

Photon Gen 2 chainring options:

• 36T

• 38T

• 40T

• 42T

• 50T

X1 Pro & X1 Stealth kits use 104mm BCD inner chainrings, allowing swaps with standard chainrings or belt pulleys like Gates or Veer belt system.

Top speed depends on your setup, gearing, battery, and conditions.

• X1 Pro: Up to 100kph+ (62mph) recorded

• X1 Stealth: Lower top speed, prioritising pedal assist over raw speed

• Photon Gen 2: Limited by firmware (250W or 750W) and local regulations

For an estimated top speed, please provide us:

1. Wheel diameter (mm)

2. Battery voltage

3. Motor model

4. Chainring size

5. Smallest rear cog size

Actual speed varies with bike weight, terrain, and weather.

X1 Pro & X1 Stealth kits use 104mm BCD inner chainrings, allowing swaps with standard chainrings or belt pulleys like Gates or Veer belt system.

The Ultimate eBike Drivetrain Set

The Heavy-Duty Drivetrain is a robust 5-speed system designed for high-torque mid-drive e-bikes.

Key Components:

• Cassette: 15–30T range, Chromoly steel & 7075 aluminum

• Hub: 24 engagement points, 6-bolt disc compatibility, 148mm/157mm OLD options

• Shifter: Microshift ADVENT Trail Pro, single-click precision

• Derailleur: Super short cage clutch design for stability

• Chain: KMC e9 Turbo EPT anti-rust chain

Benefits:

• Optimized chainline for better power transfer

• Built for extreme conditions and longevity

• Compatible with most MTB/e-bike frames