When your trail riding needs elevating to the next level, the F-37 is your weapon of choice. Commonly
referred to as the B-52’s baby brother, the F-37 has the pace and agility to carve it up like no
other. Offering Stealth’s renowned hybrid-electric drivetrain combined with the well-known Speed
Drive two-speed transmission, the F-37’s simplicity is also its strength. Its long travel suspension
package and ergonomically designed cockpit are modelled for ultimate manoeuverability, whether in
flight or glued to the trail.

Speed and Performance
Top Speed: 60 km/h
Range: up to 100km
Noise @ 50 km/h: 65dB 

The F-37’s torquey brushless DC hub motor and high power to weight ration accelerates pilots to speeds of up to 38mph, leaving all competitors in its dust. Additional power can be transmitted to the ground via the 2-speed, internally geared bottom bracket to increase range, efficiency and acceleration.

In economy mode with moderate pedaling, the F-37 pilots can expect a range of up to 100km on flat terrain. When competition mode is engaged and the red mist comes down, a wide-open run on the trails will achieve up to 25 miles on a full charge.

Electrical and Power
Peak Power: 3.7kW (3700 Watts)
Motor Type: Brushless DC
Battery Type: LiIon
Battery Capacity: 1.5kWh
Recharge Time: 3 hours
Charge: Standard 110-240V

Stealth’s proprietary DC-1 display allows all Stealth owners to read real-time data and vital stats such as speed, battery consumption, range estimation and efficiency at a glance. It’s intuitive layout and easy to access menus create a use friendly experience for even the most novice riders. In a world where efficiency and reliability mean everything, Stealth’s solid state, digital inverter technology has absolutely no moving parts, eliminating the possibility of wear and tear.

Tried and tested, the F-37’s 1.5kWh lithium ion battery offers uncompromised safety and reliability on the trails taking you further, for longer. With a 3-hour recharge time, all Stealth customers are given the convenience of plugging in to any 110/240V household outlet to stock up on those vital electrons.
Drive Train and Technology
Using the very latest in brushless DC hub motor technology, the F-37’s 3.7kW powerplant accelerates from 0km/h to its terminal velocity in virtual silence. Having only one moving part, the F-37’s high efficiency, direct drive powerplant requires next to no maintenance giving it a huge advantage over its petrol/gas powered counterparts.

Pilots requiring a little more acceleration can further boost performance with a high torque surge of pedal power transmitted via the 2-speed planetary drive transmission, not only increasing acceleration but producing significant range gains.

Suspension
Front Travel (Fast Ace): 200mm – Standard
Front Travel (DVO Emerald): 200mm – Upgrade
Rear Travel (DNM): 200mm

Standard issue on the F-37 is Fast Ace, 200mm travel front forks. Tuned and spec’d by the Stealth team, this is a great all-round package for riders who want to mix their riding styles. Being air adjustable makes it suitable for a wide range of rider weights within minutes.

For those looking to take their riding to the next level, DVO’s Emerald Inverted fork offers a super plush ride with lots of adjustability.

Braking
Magura MT5 – Standard
Magura MT7 – Upgrade
Regenerative Braking System – Standard

When it comes to stopping power, the standard issue German made Magura MT5’s offer 4 piston hydraulic brake calipers for German stopping precision with no more than 2 fingers on the levers. For pilots in that top 10% who like to take it to the limit, we also offer an upgrade to the Magura MT7s which provide on tool less reach and bite point adjustment allowing you to fine tune your brakes on the fly. Performance is further enhanced with the MT7’s monoblock brake pads significantly improving heat dissipation while increasing bite on the leading edge. When slowing down or coasting, pilots can also activate the Regen braking, which recovers kinetic energy feeding it back into the battery pack, further enhancing range and ride time.
Top Speed Range Peak Power Battery Type Charge Time Transmission Suspension Brakes Weight
60 km/h
Up to 100 kms
3.7kW
Li-Ion
3 hours
2 speed BB
Front: 8” Rear: 8”
4-piston hydraulic
42 kg