CYC X1 Pro Gen 4 Mid-Drive E-Bike Conversion Kit

Turn almost any bike into a powerhouse with the X1 Pro Gen 4 — CYC's most advanced mid-drive conversion kit yet, built for serious off-road riding, heavy utility hauling, and riders chasing maximum power. Rated at 5000W with up to 280N·m of peak torque, it converts over 95% of bike frames on the market and runs anywhere from 36V to 72V.

Everything you need to complete your build is in the box — just bring your own battery.

Redesigned motor core
A 25% longer motor with a re-engineered core delivers better thermal performance and one of the best power-to-weight ratios in the e-bike world — around 1.5kW per kg.

All-new X12 controller
With double the capacity of the previous generation, the X12 handles serious input and delivers up to 6kW of peak power for the most extreme rides.

Advanced torque sensing
An ISIS-splined torque sensing system gives instant, natural pedal-assist engagement and the durability to handle hard riding.

CYC Ride Control app — everything at your fingertips
Customise your system straight from your phone with the CYC Ride Control mobile app, integrated via the included display. Features include:

• Bluetooth connectivity
• Change settings on the go
• Real-time dashboard
• Adjust ride parameters from your mobile device

CYC's in-house firmware fine-tunes the throttle and pedal-assist experience for a smoother, more integrated ride. Available on the Apple App Store and Google Play.

What's included:

• Motor and reduction assembly
• 219H chainring reduction assembly
• Bicycle chainring with protective cover
• Premium 219H golden KMC chain
• ISIS splined bottom bracket and spindle
• Crank arm set (160mm or 175mm)
• Gen 4 torque sensor for smooth, responsive pedal assist
• X12 controller (5000W)
• Integrated bashguard for added protection
• Fully waterproof wiring harness
• Motor hanger
• Spacer set — 3, 5 & 7mm for BSA threaded 68/73/83mm versions, or 2x 2mm spacers for the BB92 version
• Display options: SW102 (up to 52V) or DS103 (up to 72V)
• Throttle options: thumb, half-twist, or full-twist
• Magnetic speed sensor
• Magnetic brake sensors (optional)
• Digital user manual (e-copy)

Built tough, sealed against the elements, and ready to transform your ride.