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 its proven Speed Drive two-speed transmission, the F-37’s simplicity is also its strength. Its long travel suspension package and ergonomically designed cockpit are modeled for ultimate maneuverability, whether in flight or glued to the trail.
Speed & Performance
The F-37’s torquey brushless DC hub motor and high power to weight ratio effortlessly accelerates pilots to speeds of up to 60km/h, leaving all competitors in its dust. Range, efficiency and acceleration can be further improved by transmitting pedal power to the rear wheel via the 2-speed, internally geared bottom bracket.
In economy mode with moderate pedaling, F-37 pilots can expect a range of up to 100km@25km/h (60 miles@15mph). When competition mode is engaged and the red mist comes down, a wide open run on the trails will achieve up to 40km (25 miles) on a full charge.
Electrical & Power
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 means everything, Stealth’s solid state, digital inverter technology has absolutely no moving parts, eliminating 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.
Suspension & Braking
Standard issue on the F-37 are 200mm travel front forks from Fastace. Tuned and spec’d by the Stealth team, this is a great all-round package for riders who want to mix their riding styles. Preload, compression and rebound adjustments are simple to tune for a variety of terrain.
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.
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.
Frame & Dimensions
With over 10 years of intensive R&D, the Stealth F-37’s proven monocoque chassis design has taken thousands of devoted customers soaring to new heights. Hand built using the highest quality, aircraft certified CroMoly alloys the F-37’s latest frame evolution is lighter and tougher than ever before.
Dimensionally the Stealth F-37 comes in a large frame size with enough adjustability to suit most riders ranging from 162cm (5’4”) up to 193cm (6’4”) and a maximum rider weight of 120kg.
The F-37’s footprint shares a similar profile to that of a large frame downhill mountain bike meaning that you can still load it on to your heavy-duty bike rack, or easily transport it in an elevator or small van.