CYC X1PRO GEN2 5000watt 120mm bottom bracket. Motor only.


These motors offer great versatility & extra power for those who want more. UP TO 5000 WATTS WITH THE BAC2000 CONTROLLER!

Product Information

Checkout this new generation of high powered e bike conversion motors. The are designed to fit 99% of bike frames & can run on 36v-72volts. With two controller options available you can get over 5000watts from them if you’re brave enough. The BAC855 controller is capable of 3000watts & the BAC2000 controller can produce over 5000watts so can be useful for other types of projects as well.
If you wish to have over 2000watts then you will need to look at building a custom high capacity battery which we can provide & prices are available on request. We are the sole distributors for CYC Motors in New Zealand & we carry a range of spare parts. We will also do our best to keep pricing the same as the CYC website so you don’t feel the need to try & buy elsewhere. Thanks Rex & Jill.

This the CYC X1 PRO GEN2 designed to fit bikes with 120mm bottom brackets. Torque sensor GREAT FOR FAT BIKES.
BAC2000 controller for up to 5000watts. 250nm OF TORQUE!


750c centre mount display which can take up to 72volts.

170mm cranks.

Thumb throttle

11/63 or 12/72 Chainring option


36-72 DCV (nominal) (10-20s Batteries)

>300 rpm

3000W (BAC855) & 5000W (BAC2000)

150 N.m. (BAC855) & 250 N.m. (BAC2000)

≥ 88%

Anodized Black

3.8 kg

5.6 kg


165mm or 170mm

190mm (208mm for fat bikes)

11/53 option with 32T bike chainring

11/63 option with 38T bike chainring

12/72 option with 42T bike chainring




Bottom bracket

Speed sensor


PAS sensor

Brake sensor if wanted

​ASI BAC855 or BAC2000

500c or 750c APT display

Thumb, half-twist, or full throttle

BSA Threaded & Pressfit options

Magnetic sensor

Waterproof wire (Julet connector)

Integrated torque & cadence sensor

Magnetic sensor for all brakes


BSA Threaded Frames 34.5 bottom bracket inside diameter

Pressfit Frames. 41, 42 & 46mm bottom bracket inside diameter.


Motor type In Runner

Stator lamination 0.2mm

Magnet N45SH (>180 C)

Wiring 0.7mm2

Efficiency >93%

Maximum RPM >12000rpm

Rated Torque >5nm

Transparent cover Tempered Glass

Epoxy sealed​ Black Epoxy Potted


First stage 1:6 Hardened steel plantetery

Second stage 219H Chain

Overall reduction ratio
from motor to crank

1:28.9 (11/53T)

1:34.4 (11/63T)

1:36 (12/72T)















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