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Stealth B-52

Stealth F-37

Single Track Slayer

Stealth F-37

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 2-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

Top Speed

70km/h

Peak Torque

120Nm

Peak Power

3.7kW

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. 

Suspension and Brakes

Front Travel

180mm

Rear Travel

180mm

Brakes

250mm

Standard issue on the F-37 is Fast Ace, 180mm travel inverted  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. On the rear the F-37’s oil damped shock provides all the adjustment that you need with compression, rebound and preload adjustment all at your finger tips.  

Speed and agility don't mean a lot without precise braking and the new F-37 has got that one in the bag. Coupled with the powertrain's regen braking system, there's arguably no e-bike on the planet that can stop like the F-37.

 

Fitted with the same 250mm brake rotors and mini-moto calipers as the B-52, brake fade is non existent. Those who have seen their rotors change colour after a mammoth downhill run will know exactly what we mean by "brake fade".

Drivetrain & Transmission

Motor

3.7kW BLDC

Transmission

2 speed planetary

Gear Shifting

Paddle shift

Electromotive force is laid down by the F-37’s 3.7kW BLDC hub motor which, like the B-52 and H-52 has just one moving part transferring power to the ground. With over 10 years of development the F-37’s proven floating drivetrain not only prevents chain stretch, but reduces the need for clunky tensioners, significantly reducing wear and tear of unnecessary parts.

 

Shifting gears is now so much easier with the addition of new shift paddles to the Speed Drive's 2 speed crankset.   The 1.65:1 gear ratio, and new paddle shifters just need a quick tap with your heel for a guaranteed a positive shift between high and low ratio at any time. 

Frame & Swingarm

Construction Type

Monocoque

Material

4130CrMo Alloy

Warranty

Lifetime

The longer wheelbase and stretched out the cockpit make for a more comfortable riding position than the Gen 1 models and minimise arm and leg fatigue when cranking on the pedals with throttle wide open.  

 

We also dropped the C of G slightly and added some forward weight bias to help maximise traction and keep the front wheel planted as you steer with laser guided precision through tight and twisty turns.  

 

To ensure that the F-37’s  frame and swingarm withstand the test of time, we’ve applied the same zinc rich coating and hard wearing powdercoat layer as all of our Legacy models, allowing us to once again back it up with our lifetime frame warranty.