Factory Test: QuietKat Debuts Apex HD and XD Model E-Bikes

by
posted on May 15, 2024
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Apex HD And Apex XD Lede

QuietKat has debuted two new Apex series e-bikes for 2024, termed the Apex HD and Apex XD. While the bikes are nominally extensions of the existing Apex line, they boast enough upgrades to essentially constitute a whole new generation of electronic bicycles, guaranteed to take hunters father, faster and in even more rugged terrain. I had the opportunity to take a sneak peak at these new motorized monsters on a recent visit to the company’s Eagle, Colorado offices and warehouse, and was able to feel their whopping 500 additional watts of power firsthand. These larger motors are powered by a larger battery that boosts the bike's potential range to a mind-boggling 100 miles. Let’s take a look at some of the brand-new design features packed into these new Apexes.

Apex HD Left side

The first thing to note is frame sizes are gone. In pace of the old S/M/L frames are just two, which better suit the gamut of users. While this may sound counterintuitive, QuietKat has accomplished this by making the Apex XD a traditional, leg-over frame, while the Apex HD is a step-through, and thus more comfortable for smaller uses. It also has the added benefit of being a potentially more comfortable choice for folks who ride laden with a pack, vest and the like, as it’s a less acrobatic procedure to mount the bike. Far from a simple marketing pitch, the bike’s design was actually hashed out on the company’s Military/LE side of the house, as guys wearing body armor and war belts find it significantly easier to mount a step through. Further, the new bikes sport dropper posts on the seats, to further ease adjustment between different sizes of riders, and of course for seamless transition between technical and road riding.

Of course, the natural next question is, “if step-through frames are so ergonomic, why didn’t they do this before?” That was my question anyway. As it turns out, this is where the upgrades get really, really fun.

Apex HD and Apex XD

E-bike motors have always been mounted on the middle of the frame, right near the pedals. A sturdy part of the bike directly adjacent to the manual power input, this placement has always been a no-brainer. To have a step-through, however, the motor has to be … well … somewhere else, which proves a conundrum all its own. In response to this sticky problem, QuietKat developed an all new hub-drive motor for the Apex HD, that is actually more powerful than the mid drive found on the old Apex Pro models. Mounted directly on the rear axle, this motor boasts the same 1500 watts as the new mid-drive Apex XD, and those extra 500 watts make a noticeable difference. One guy I talked to at the factory has climbed a 60-degee scope with his test model, which is an absolutely insane achievement for an e-bike. This isn’t all down to the wattage however, and brings us to the next fun upgrade for these new Apexes.

Apex HD Hub Drive

One complaint QuietKat constantly received was hunters knocking off their derailleurs when navigating through brush and tight single track deep in the backcountry. Of course, there’s no fix for this—bikes with speeds have derailleurs, its just a natural fact of life … right? Apparently not. For 2024, QuietKat has introduced an all new automatic transmission that shifts when it hits predesignated levels of input—no more derailleur, all internal gearing. Before you blow past this as some esoteric bit of engineering, I should note how absolutely insane it is to feel your bike shift and the pedal harden without manual input. Maybe its just me, but a lifetime shifting bikes the old-fashioned way made the experience just about as weird as it was cool. Even beyond ditching the derailleur, however, this new gearing setup has allowed QuietKat to equip the bikes with extra stout motorcycle chains, for even better durability off trail. Finally, and to circle back to where this digression began, comes the settings the new transmission enables.

It’s no secret in the engine world that with more power comes more noise (at least in the days before more efficient high-flow mufflers). It’s why a built-out Chevelle sounded a little better than your grandmother’s Edsel. Electric motors are—proportionally speaking—no different, and that extra wattage came with a discernable increase in noise; thus the next question became how to keep the bikes catlike quiet when needed, while still allowing riders access to the new bikes' incredible power. The answer came in the form of tailored power settings, made possible by the revolutionary new transmission system. Stealth mode keeps the bike in first and second gears, capping the decibel level of the bike far below what it would achieve at higher speeds if allowed free reign through the gear set. Climb mode keeps the bike in first gear only, maximizing torque for those tough climbs (apparently even to a whopping 60 degrees). Finally, unlimited mode allows access to the full power of the bike (as the name implies), while Class 1, 2 and 3 modes allow for compliance with various levels of e-bike regulation.

Finally, lets get to some of the smaller yet still useful features on the bike that I think hunters will love. The seat is full suspension, taking quite a few bumps and jolts out of the equation, particularly considering the bike's hard-tail design. An ITO theft prevention system—essentially equivalent to LoJack—can track the bike if stolen, which is always a welcome addition to this expensive an investment. An interchangeable rack system on the rear means hunters can have multiple setups—say one for elk, one for turkey and one for fishing—and just swap them on and off the bike when need be. A front basket is an option from the factory, as are studded tired for ice fisherman and other extreme terrain junkies. Lastly, the throttle is no longer managed by a thumb switch, but utilizes the familiar, featherable twist throttle found on everything from dirtbikes to motorcycles.

Interchangeable side rack

For more information on this next iteration of e-bike from QuietKat, which come in Gull Grey, Moss, Relic Camo, Charcoal, Red Clay and Wideland Camo, visit quietkat.com.

Herman riding bike

Latest

LEDE Composite Image
LEDE Composite Image

Last-Minute Mother's Day Gift Guide

Most folks have already gotten their Mom something by now. Whether it's the simple pleasure of making her a special dinner, a full-on family getaway for the weekend, or that latest book she's been craving, some sorts of people know how to make a mom's day complete. Then, of course, there's you—the sort of person who frantically clicks into a gift guide the week before Mother's Day. All jokes aside, here are five things Mom is sure to love.

North Fork Bullets: The Reintroduction of an Icon

Fans of hard-hitting hunting bullets rejoice! North Fork bullets is back in action and better than ever. Phil Massaro breaks down the latest from this storied company.

First Look: Ol' Man Outdoors Clamp Down Jaw and Stabilizer Truss Systems

Ol'Man Outdoors, has introduced two advanced technologies that enhance the safety and effectiveness of ladder stands. The Clamp Down Jaw System securely locks the ladder stand to a tree before a hunter ever leaves the ground, while the Stabilizer Truss System enhances ladder stability, provides more tree options and eliminates unwanted noise.

New World Screwworm Closing the Gap to the Border

The U.S. Department of Agriculture (USDA) announced in April that the New World Screwworm (NWS) is closer to the Texas border than ever before in this latest outbreak. On April 20 Texas Agriculture Commissioner Sid Miller warned, “The threat of the New World screwworm is creeping dangerously close to our border. A confirmed case in Nuevo León, just about 60 miles from the United States, in a young calf is a flashing red warning sign we will not ignore.”

10mm Auto Pistol Caliber Carbines: The 'Best' Outdoor Option?

Last year we posed the question, "Is the 10mm Auto PCC the next great outdoor carbine?" while taking a look at a few of the models currently in production. Since then, the selection has continued to grow. Are the PCCs chambered for 10mm Auto the most powerful options out there? The answer is yes, and no. It's a matter of context. Let's take a look at what these carbines have to offer compared to those chambered in other handgun calibers.

New for 2026: Updated Federal Upland Steel

Federal Ammunition has two new 12-gauge loads in its Upland Steel shotshell lineup. Built for consistent patterns and hard-hitting performance with non-lead shot, these new offerings are being delivered to retailers nationwide and expand the versatility of the Upland Steel product line.

Interests



Get the best of American Hunter delivered to your inbox.