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  • Color: Red
  • Color: Matt Grey
$2,999.00 - $4,699.00
$6,299.00 - $6,499.00
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The Subaru WRX of eBikes

For those folks who want to travel at higher speeds with agility and precision, we offer you the Desert Falcon EVO.

Equipped with the new Bosch Gen4 Performance Speed drive unit and Powertube 500Wh battery, you can attack mountain climbs for hours with assist speeds of up to 28 mph. Internal cable routing keeps this bike looking slick, while the top shelf Shimano GRX Di2 Hydraulic Disc groupset provides fast and precise electronic shifting along with a refined brake feel.

Geometry Chart:
Seat tube length (mm)500 550600
Top tube length (mm)550 575600
Chain stay length (mm)429.2 429.2429.2
Bottom bracket offset (mm)72.5 72.572.5
Head tube length (mm)130 170210
Head tube angle71.5 71.571.5
Seat tube angle73.5 73.573.5
Standover height (mm)780 820860
Reach (mm)384 398411
Stack (mm)561 599637

Electronic drivetrain systems deliver excellent shifting, easy set up, and solid battery life. Here are the highlights of today’s electronic shifting systems:

Shifting Performance
Electronic shifting systems use powerful servomotors to rapidly shift the chain. Because microprocessors and sensors constantly monitor every aspect of the system, they shift with precisely and without chain rub.

Many major systems have customizable shifting. Some have the ability to add remote shifters for common riding positions, and some even allow you to change the functions of the shifting buttons.

Electronic groupsets are responsive and consistent. There are no cables to stretch and wear out, so you get a flawless shift every time. The added bonus is you’ll never have to replace a derailleur cable ever again.

Dropper posts

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.

Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.

Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.

SizeHeight (inches)
50cm5'4" - 5'9"
55cm5'9" - 5'11"
60cm5'11" - 6'3"


Motor Bosch Gen4 Performance Speed
Battery BOSCH PowerTube 500 Wh: 36 V / 13.4 Ah
Display Bosch Kiox
Max Assisted Speed 28mph
Charger Bosch Powertube 500wh battery; 4A Charger
Frame 6061 Aluminum
Fork BULLS Carbon 1.5" tapered steertube
Rims/Wheels DT-Swiss HE1800 Spine
Tires Schwalbe E-One EVO V-Guard 700x32
Crankset FSA
Chainrings FSA 48T
Rear Derailleur Shimano GRX Di2 RD-RX817
Cassette/Rear Cogs Shimano XT M8000 11-42T
Shifters Shimano ST-RX815 Di2
Handlebars FSA Energy SCR Compact
Brakes Shimano GRX RX810, hydraulic disc brakes, 180mm/180mm
Pedals not included
Saddle BULLS
Seat Post BULLS 30.9x380mm
Rims DT Swiss HE1800 Spline, 20mm int. width, tubeless ready rims
Seatpost BULLS ovalized carbon, 30.9x380
Cassette/Freewheel Shimano XT M8000, 11-42T

* Subject to change without notice.


Bulls Desert Falcon EVO

Bulls Desert Falcon EVO

Part Numbers

Option UPC MPN Store SKU
Red / 50cm 732262503875 650-69950
Red / 55cm 732262503882 650-69955 210000024548
Red / 60cm 732262503899 650-69960
Matt Grey / 50cm 724-36350
Matt Grey / 55cm 724-36355
Matt Grey / 60cm 724-36360