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As much fun as e-bikes are for getting around the city, I love taking them off-road and onto trails. That’s where fat tires really come alive, and the Denago Fat Tire Step-Thru electric bike showcases just what I love about e-bikes with big honkin’ tires.

This definitely isn’t a mountain bike or overlanding bike – this is a comfortable bike that can handle both light trails and urban/suburban riding. That means it’s going to be a great option for nature trails, gravel paths, dirt roads, and that sort of riding.

Between a powerful motor, large capacity battery and a comfortable setup, the Denago Fat Tire Step-Thru has a nice assortment of features and components for recreational riding on a wide range of terrains.

Check out my video review below if you want to see my real world testing of the bike. Then keep scrolling for my complete review.

Denago Fat Tire Step-Thru e-bike video review

Denago Fat Tire Step-Thru tech specs

  • Motor: 750 W rear geared hub motor with 80 Nm torque
  • Top speed: 20 mph (32 km/h) on throttle, 28 mph (45 km/h) on pedal assist
  • Range: 35-60 mi (55-100 km)
  • Battery: 48V 19.2Ah (921 Wh) frame-integrated, removable
  • Max load: 300 lb (136 kg)
  • Frame: 6061 aluminum
  • Weight: 79 lb (36 kg)
  • Suspension: Zoom fork, 60-75 mm travel (depends on bike size)
  • Brakes: Hydraulic disc brakes, 180 mm rotors
  • Extras: Color LCD display with speedometer, wattmeter, battery gauge, PAS level indicator, odometer, tripmeter, USB charger, left-side thumb throttle, torque sensor, included front and rear fenders, rear rack, headlight and frame-integrated tail lights
denago fat tire e-bike

A balance of power and comfort

If you’ve been into e-bikes for a while or have begun digging into the topic ahead of buying your first e-bike, you’ll know that suspension and fat tires are two of the best things you can do for comfort. While the Denago here doesn’t have full-suspension, it almost feels like it does thanks to front suspension and plush fat tires. The lack of rear suspension is only noticeable on big obstacles and angry pot holes.

For the gravel roads and light trails that I spent most of my time riding on, the bike had plenty of shock absorption for me.

It also had plenty of power, combining a 750W motor with a top speed of 28 mph on pedal assist. Checking with a GPS speedometer showed that the 28 mph was often reading a big high by around one or two miles per hour, but it was pretty darn close. Optimistic speedometers are pretty common in the e-bike industry, unfortunately.

The 750W motor is quite torquey and will get you rolling quickly as well as climb a decent hill, though the bike’s heavy weight of 79 lbs (36 kg) certainly works against it when it comes to acceleration and hills. The included torque sensor should help mitigate that weight on startup by better translating your pedal force into responsive pedal assist, though I found that it strangely still had a decent pedal assist lag. Torque sensors normally help e-bikes start applying pedal assist power nearly immediately when the rider begins pedaling, but the Denago still had a bit of a lag. It was nothing that a short blip of the throttle couldn’t compensate for, but it still surprised me, and not in a good way.

What did surprise me in a good way was the range. With a big battery measuring 921 Wh, I could get a real world throttle range of over 35 miles (56 km), which is quite good for heavy fat tire e-bikes. With pedal assist in a low power level, I’d expect that to be over 60 miles (100 km) of range, though I couldn’t be bothered to keep it in low power mode for that long to find out. Higher power pedal assist and riding fast is just too tempting to pass up.

For any fast e-bike like this, I absolutely want to see strong brakes as an important safety feature. Fortunately, Denago delivers with hydraulic stoppers on large 180 mm discs. This is a huge win for me because there’s nothing worse than struggling to stop a heavy e-bike. Powerful brakes make the bike more controllable and give riders more confidence.

To afford those nice brakes, the company must have saved a few dollars on the drivetrain. You get a 7-speed shifter, but it’s not a particularly nice one. The Shimano Tourney setup is on the lower end of Shimano’s hierarchy but is acceptable for the type of leisure and recreational riding that most people will use this e-bike for, which is exactly how I was riding it.

denago fat tire e-bike

To make up for the fairly basic transmission, we get some really nice integrated tail lights. In fact, this bike must either be built in the same factory as Aventon’s e-bikes, or else Denago just ripped off their tail light design, because these awesome tail lights look and feel just like the ones that debuted on the Aventon Aventure last year and and have since found their way onto most of Aventon’s other e-bikes.

Regardless of where they came from, I’m a huge fan of frame-integrated lighting because it is harder to damage. E-bike lights that stick out are prime targets for damage at bike racks or anywhere else that bikes come into close contact with other bikes or objects. These frame integrated lights are slim and tucked away yet still quite visible to cars and other road users.

In fact, this would have been a prime opportunity to incorporate turn signals since the tail lights are actually spread apart. I’ve talked before about how I find most e-bike turn signals to be gimmicky since they are usually only a couple inches apart on a main central tail light. But with two independent lights on either side of the bike’s rear triangle, this could have been a great turn signal setup. Oh well, maybe on the next version.

Even so, there’s still a lot to like here. We’ve got a comfortable trail bike with a nice and accessible step-through frame design. We’ve got plenty of power and even more battery capacity than I know what to do with. There are nice components like those brakes and even a color LCD screen, and there are even two different sizes to better fit larger and smaller riders.

The Denago Fat Tire Step-Thru e-bike may have a few cheaper parts and carry some extra poundage, but it wears the weight well by not feeling too bulky while riding (just be careful lifting it by yourself!).

At the MSRP of $1,999, I’m not entirely blown away. It’s not a bad price when you compare it to other full-featured bikes. It’s only a hundred bucks more than the Aventon Aventure.2, and comes with 33% more battery. But there are certainly better bang-for-your-buck deals out there. People often point to budget rides like the Lectric XP 3.0, and I’d agree that you get a lot with those types of e-bikes, but they don’t have the range or big-wheel comfort to match this ride. So if you want a large, comfortable bike that comes with lots of power and battery, you’ve got to pay for those luxuries. And in this case, you’ll have to fork over a cool two G’s. A bit pricey, but still a great e-bike for cruising.

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There’s a big problem with McClaren’s ‘World’s most powerful trail-legal’ electric mountain bike

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There's a big problem with McClaren's 'World's most powerful trail-legal' electric mountain bike

McClaren, better known for its high-performance sports cars, has just announced a series of new electric bikes, including what the company calls the “World’s most powerful trail-legal” electric mountain bike.

The new carbon fiber e-bike models include two full-suspension electric mountain bikes known as the Extreme 600 and the Extreme 250, as well as two hardtail eMTBs known as the Sport 600 and the Sport 250.

Both bikes feature mid-drive motors, with the power rating matching the monikers to offer 600 and 250 Watts of power, respectively.

The lower power 250W versions are likely intended to meet regulations for the European market, where stricter e-bike laws limit most models to 250 watts of power, or roughly one-third of a horsepower.

The 600W models take advantage of looser regulations in markets that allow more power, such as in North America.

The only problem is that McClaren’s marketing line of being the “world’s most powerful trail-legal electric mountain bikes” is, at best, misleading, and at worst, patently false.

The issue is that for European e-bikes, 250W is the legal limit for both on-road and trail usage. So if you’ve got a 250W e-bike, you’ve basically tied every single other e-bike on the market for highest power. Of course, none of the 250W e-bikes rolling around today actually put out only 250W of power. They all sneak by with higher peak power ratings, but the continuous power ratings are all identical. Thus, claiming to have the world’s most powerful trail-legal electric mountain bike is a bit like claiming to sell the world’s tallest 6-foot ladder.

When you look at the US market, it’s even more problematic. E-bikes in the US fall under various regulations depending on the state, but most areas use a 3-class system. And to make things simple, all three classes allow up to 750 watts of power.

If you’re on private property, it doesn’t really matter how much power your e-bike has. ‘Murica! But if you’re on public property, like public roads or trails on state land, you’re likely going to be limited to that 750W of power in most places. Thus, claiming that a 600W e-bike is the world’s most powerful trail-legal e-bike is obviously quite problematic in the land of 750W e-bikes.

If we are to consider peak power, McClaren claims that its 600W mid-drive motor actually peaks at 852W. That’s impressive, but still below the peak power of dozens of e-bike models in the US that peak in the four digits.

What McClaren might be referring to is torque, and the 600W version of their new e-bike does make an impressive claim of 161 Nm, one of the highest figures in the industry. But it takes more than being “one of the highest” to park at the top of the podium. For example, other trail-legal e-bikes, such as Optibike’s Class 1 RIOT eMTB, claim 190 Nm of torque.

But marketing untruths aside, we might as well take a look at what McClaren is offering. We’re already here, as it were.

For a starting price of just US $7,950, you can throw a leg over the Sport 250, the lower-power hardtail model. That ticket price gets you entry to a carbon fiber frame and a 250W mid-drive motor with a claimed 121 Nm of torque. That’s pretty darn torquey, though it still doesn’t surpass several other mid-drive e-bikes we’ve seen.

Garnished with a 12-speed SRAM GX Eagle drivetrain and SRAM G2 RE quad-piston hydraulic disc brakes, the bike certainly looks ready for action. The 36V battery isn’t huge at just 540 Wh, but the bike is intended for pedalers, so it’s likely to still offer good range on the trails. This isn’t a motorcycle in a bike frame like many we’ve seen.

Rounding out the major components are a RockShox Pike Rush RC fork, a color display embedded in the carbon fiber handlebars, and a carbon wheelset to match, complete with a set of Pirelli Scorpion Enduro M 29×2.4″ tires.

The bike comes in three sizes and offers a two-year warranty.

And the prices only go up from there. Upgrading to the more powerful Sport 600 bumps the price to US $8,950.

The full-suspension bikes are even pricier, with the Extreme 250 coming in at US $10,950 and the Extreme 600 topping the lineup at US $11,950.

To be fair, you do get the more premium wireless 12-speed SRAM XX Eagle AXS transmission on the higher-end model, as well as a wireless dropper post and a nicer RockShox Lyrik Rush RC fork, but that’s still a pretty penny.

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Caterpillar is putting MASSIVE 240-ton electric haul truck to work in Vale mine

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Caterpillar is putting MASSIVE 240-ton electric haul truck to work in Vale mine

Mining company Vale is turning to Caterpillar to provide this massive, 240-ton battery-electric haul truck in a bid to slash carbon emissions at its mines by 2030.

Caterpillar and Vale have signed an agreement that will see the Brazilian mining company test severe-duty battery electric mining trucks like the 793 BEV (above), as well as V2G/V2x energy transfer systems and alcohol-powered trucks. The test will help Vale make better equipment choices as it works to achieve its goals of reducing direct and indirect carbon emissions 33% by 2030 and eliminating 100% of its net emissions by 2050.

If that sounds weird, consider that most cars and trucks in Brazil run on either pure ethyl alcohol/ethanol (E100) or “gasohol” (E25).

“We are developing a portfolio of options to decarbonize Vale’s operations, including electrification and the use of alternative fuels in the mines. The most viable solutions will be adopted,” explains Ludmila Nascimento, energy and decarbonization director Vale. “We believe that ethanol has great potential to contribute to the 2030 target because it is a fuel that has already been adopted on a large scale in Brazil, with an established supply network, and which requires an active partnership with manufacturers. We stand together to support them in this goal.”

Vale will test a 240-ton Cat 793 battery-electric haul truck at its operations in Minas Gerais, and put energy transfer solutions to a similar tests at Vale’s operations in Pará over the next two-three years. Caterpillar and Vale have also agreed to a joint study on the viability of a dual-fuel (ethanol/diesel) solution for existing ICE-powered assets.

Vale claims to be the world’s largest producer of iron ore and nickel, and says it’s committed to an investment of between $4 billion to $6 billion to meet its 2030 goal.

Cat 793 electric haul truck

During its debut in 2022, the Cat 793 haul truck was shown on a 4.3-mile test course at the company’s Tucson proving grounds. There, the 240-ton truck was able to achieve a top speed of over 37 mph (60 km/h) fully loaded. Further tests involved the loaded truck climbing a 10% grade for a full kilometer miles at 7.5 mph before unloading and turning around for the descent, using regenerative braking to put energy back into the battery on the way down.

Despite not giving out detailed specs, Caterpillar reps reported that the 793 still had enough charge in its batteries for to complete more testing cycles.

Electrek’s Take

Caterpillar-electric-mining-truck
Cat 793 EV at 2022 launch; via Caterpillar.

Electric equipment and mining to together like peanut butter and jelly. In confined spaces, the carbon emissions and ear-splitting noise of conventional mining equipment can create dangerous circumstances for miners and operators, and that can lead to injury or long-term disability that’s just going to exacerbate a mining operation’s ability to keep people working and minerals coming out of the ground.

By working with companies like Vale to prove that forward-looking electric equipment can do the job as well as well as (if not better than) their internal combustion counterparts, Caterpillar will go a long way towards converting the ICE faithful.

SOURCES | IMAGES: Caterpillar, Construction Equipment, and E&MJ.

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Argonne Nat’l Lab is spending big bucks to study BIG hydrogen vehicles

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Argonne Nat'l Lab is spending big bucks to study BIG hydrogen vehicles

Argonne National Laboratory is building a new research and development facility to independently test large-scale hydrogen fuel cell systems for heavy-duty and off-road applications with funding from the US Department of Energy.

The US Department of Energy (DOE) is hoping Argonne Nat’l Lab’s extensive fuel cell research experience, which dates back to 1996, will give it unique insights as it evaluates new polymer electrolyte membrane (PEM) fuel cell systems ranging from 150 to 600 kilowatts for use in industrial vehicle and stationary power generation applications.

The new Argonne test facility will help prove (or, it should be said, disprove) the validity of hydrogen as a viable fuel for transportation applications including heavy trucks, railroad locomotives, marine vessels, and heavy machines used in the agriculture, construction, and mining industries.

“The facility will serve as a national resource for analysis and testing of heavy-duty fuel cell systems for developers, technology integrators and end-users in heavy-duty transportation applications including [OTR] trucks, railroad locomotives, marine vessels, aircraft and vehicles used in the agriculture, construction and mining industries,” explains Ted Krause, laboratory relationship manager for Argonne’s hydrogen and fuel cell programs. “The testing infrastructure will help advance fuel cell performance and pave the way toward integrating the technology into all of these transportation applications.”

The Hydrogen and Fuel Cell Technologies Office (HFTO) of DOE’s Office of Energy Efficiency and Renewable Energy is dedicating about $4 million to help build the new Argonne facility, which is set to come online next fall.

Electrek’s Take

Medium-sized Hydrogen FC excavator concept; via Komatsu.

It’s going to be hard to convince me that the concentrated push for a technology as inefficient as hydrogen fuel cells has more to do with any real consumer or climate benefit than it does keeping the throngs of people it will take to manufacture, capture, transport, store, house, and effectively dispense hydrogen gainfully employed through the next election cycle.

As such, while case studies like the hydrogen combustion-powered heavy trucks that have been trialed at Anglo American’s Mogalakwena mine since 2021 (at top) and fuel cell-powered concepts like Komatsu’s medium-sized excavator (above) have proven that hydrogen as a fuel can definitely work on a job site level while producing far fewer harmful emissions than diesel, I think swappable batteries like the ones being shown off by Moog Construction and Firstgreen have a far brighter future.

Speaking of Moog, we talked to some of the engineers being their ZQuip modular battery systems on a HEP-isode of The Heavy Equipment Podcast a few months back. I’ve included it, below, in case that’s something you’d like to check out.

SOURCES | IMAGES: ANL, Komatsu, and NPROXX.

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