CYC X1 Pro Gen 4 Mid Drive Kit | Incl 72V 20Ah Battery

2026 CYC X1 Pro Gen 4 mid drive e-bike conversion kit with 72V 20Ah battery and 3A charger. Australian stocked. 2-year motor warranty when used with any Cap Rouge or CYC branded battery.

The X1 Pro Gen 4 is a high-powered mid-drive conversion kit made for extreme power, off-road and utility use. Rated at 6000W and 250Nm, with up to 100km of range and up to 100km/h (off-road use only). The package includes everything you need to convert your bike: battery, charger, plug and play wiring, tools and instructions.

Key specs

• Rated power: 6000W
• Peak torque: 250Nm
• Battery compatibility: 36V to 72V
• Chainring options: 32T and 38T (30-52T with BCD104)
• Bottom bracket options: 68mm-120mm; fits all bike types with a 68-83mm BSA threaded bottom bracket
• Pedal assist and/or throttle assist, or both at once

What's in the box

• CYC X1 Pro Gen 4 complete conversion kit: motor-reduction assembly, 219H chainring-reduction assembly, chainring with cover, 219H golden KMC chain, built-in bashguard, motor hanger
• 72V 20Ah triangle battery and 3A fast charger
• ISIS splined bottom bracket and spindle, bottom bracket assembly (BSA 68-83mm)
• Crank arms and hardware kit with spacers (3, 5 and 7mm for BSA 68/73/83mm; 2x 2mm for BB92)
• Gen 4 torque sensing freewheel module
• CYC X12 controller (6000W)
• DS103 or SW102 display, waterproof wiring harness, thumb throttle, magnetic speed sensor, brake sensors
• Tool kit and user manual (ecopy)

Chainring (32/53T or 38/63T) and display (DS103 or SW102) are chosen at order time. Let us know your preference in the order notes or give us a call.

Why the X1 Pro

High ground clearance: the X1 Pro mounts high on the frame rather than at the bottom bracket, especially on modern frames with a curved downtube. It can also be installed inside the frame triangle (with the controller mounted separately), making it well suited to e-MTB conversions.

Fits all common bottom brackets: standard and fat bike bottom brackets from 68mm to 120mm, plus a dedicated BB92 version with a direct-fit 51mm chainline for press-fit mountain bike frames.

CYC Ride Control: pair the CYC Ride Control app with the X-Controller series over Bluetooth to tune the system to how you ride.

Torque and cadence sensors: the torque sensor measures how hard you pedal and the cadence sensor how fast. The controller combines both for a natural pedal-assist feel, records your own power output in the app, and lets you adjust the assist ratio. EMTB mode available at comparable power levels.

Battery

Supplied with the 72V 20Ah 1440Wh Cap Rouge triangle battery: Samsung 50S 21700 cells, 80A continuous discharge BMS (motors up to 5760W), dual XT90 and ST3 charging, XT90 output, 7.1kg. See the battery listing for full specifications.

Not sure the X1 Pro will fit your frame? Check the CYC fitment FAQ or give us a call.