As electric trail bikes like Sur Rons and Talarias gain popularity among off-road enthusiasts, a growing conflict is emerging on mountain bike trails. These powerful machines, capable of speeds and torque far beyond that of a traditional mountain bike, are raising concerns among trail users, land managers, and environmental advocates.
First though, some semantical housekeeping. The term “e-bike” is often used to cast a pretty wide net, encompassing everything from cute little folder e-bikes to much more powerful electric motorbikes. Similar to the way motorcycle riders often talk about their “bikes”, the term “e-bike” in colloquial discussion is just that: colloquial.
The term “electric bicycle”, on the other hand, is an actual regulatory designation that lets most electric mountain bikes and other commuter-style e-bikes fit under the legal definition of bicycles. To oversimplify it, the e-bike that looks like a typical mountain bike is an electric bicycle. The one that looks like a motorcycle or dirt bike is probably not an electric bicycle.
That’s an important distinction because it’s becoming a major issue on mountain bike trails all over North America and in many other parts of the world.
Unlike a typical 50 lb electric mountain bike that can output an amount of power roughly in line with a healthy adult, electric motorbikes like those from Sur Ron, Talaria, and other brands can weigh 2-3x as much while outputting 5-10x the amount of power as a typical electric mountain bike. They’re a blast to ride, but like many things in life, there’s a time and a place. Their proliferation of Sur Ron-style electric motorbikes has been wreaking havoc on mountain bike trails where such bikes are almost always illegal.
That Canyon on the left is an electric bicycle, while the Tromox on the right is not an electric bicycle
Mountain bike trails are carefully designed to handle the wear and tear of typical mountain bikes. Normal electric mountain bikes, which have electric motor power levels similar to human pedaling power, typically mesh fairly well with mountain bike trails.
However, the high torque and weight of bikes like Sur Rons and Talarias can wreak havoc on these trails. Such power motorbikes are often responsible for increased erosion, deeper ruts, and widening of trails in areas where these bikes are being used. It’s often not just a matter of normal trail wear, but rather damage that can take significant time and resources to repair.
Trail widening, often caused by riders veering off designated paths, also leads to environmental degradation, harming vegetation and wildlife habitats.
Mountain bike trails are often designated for non-motorized use, and electric trail bikes with such high-power motors and large tires are almost never allowed. Some mountain bike parks have begun accepting Class 1, 2, and/or 3 e-bikes, but Sur Rons and Talarias are almost always prohibited due to their much higher performance. Their power and speed far exceed what’s allowed for e-bikes under most regulations, putting them squarely in the category of motorized vehicles like dirt bikes and ATVs.
Weight also plays a major role. The risk of serious injuries is also higher due to the mass and momentum of these larger machines. With top speeds often exceeding 40 mph (64 km/h), electric motorbikes are significantly faster than traditional electric bicycles or pedal bikes. This speed disparity creates hazardous conditions for slower-moving trail users.
When combined with the fact that many riders of powerful electric motorbikes are new to the sport after buying or being gifted a Sur Ron-style bike, that high speed can be even more dangerous in the hands of a novice rider.
Two Talaria motorbike riders are asked to leave Quiet Waters Park Mountain Bike Trails
Just last week, two riders on Talarias were kicked out of Quiet Waters Park Mountain Bike Trails in South Florida, a volunteer-maintained mountain bike trail system that permits Class 1 electric bicycles (e-bikes that are pedal-assisted up to 20 mph or 32 km/h and 750W of power).
As a lead volunteer in the trail building and maintenance team at the park, Nick Calabro was there when the riders were confronted by a county worker and asked to leave. “Multiple riders reported interactions with them, from encountering them riding in the wrong direction to not wearing required helmets, and of course not even being allowed to ride those bikes on the trails,” Calabro explained to Electrek.
According to Calabro, the pair had purchased trail day passes for mountain bike riders, but then brought their much larger and more powerful Talaria motorbikes into the park.
The two were seen on video attempting to fight the trail volunteers after being asked to leave the park. The interaction took place just a few yards from a sign with the posted rules of the park (seen at 0:11 in the video below).
Such interactions represent a small but growing phenomenon on mountain bike trails, where traditional mountain bike culture and trail etiquette clash head-on with Sur Ron riders unfamiliar with the practices and terrain.
Fortunately, many other locations exist that are ideal for electric motorbikes that fall outside the realm of traditional electric mountain bikes.
Off-highway vehicle (OHV) trails that are designed for motorized vehicles like UTVs, ATVs, and dirt bikes, are ideal locations to ride powerful electric trail bikes. Such trails are built with higher power vehicles in mind, and aren’t as delicate as mountain bike trails.
Forestry/backcountry dirt roads, gravel roads, and fire roads can provide a mix of typical off-road riding and exploration, though don’t offer the same type of topography.
Motocross tracks are also excellent locations for Sur Ron and Talaria-style bikes, which can use the features for more thrilling jumps and berm riding.
Private land (with the landowner’s permission) is perhaps one of the best places for these powerful electric motorbikes due to their ability to overland and explore areas beyond the beaten path.
As the popularity of powerful electric trail bikes continues to rise, the question of how and where they should be ridden remains a contentious one. But with their ability to ride much rougher terrain as well as their increased impact on that terrain, one thing is for sure: delicate mountain bike trails aren’t the place for such powerful bikes.
FTC: We use income earning auto affiliate links.More.
The electric box van experts at Harbinger announced a new, EREV version of their medium-duty van that pairs a big battery with a small, gas-powered ICE engine to offer fleets that are hesitant to electrify a massive 500 miles of autonomy on a single charge + tank.
The American truck brand is putting its latest $100 million raise to good use, developing a cost-competitive EREV chassis that marries a low-emissions 1.4L inline four-cylinder gas engine with a close coupled 800V generator sending power to a 140 or 175 kW battery for up to 500 miles of fully loaded range. More than enough, in other words, to meet the needs of just about any fleet you can think of.
That’s a good thing, too, because medium-duty trucks are put to work in just about any circumstance you can think of, as well – a fact that’s not lost on Harbinger.
“Medium-duty vehicles serve an incredibly diverse range of applications, just like the fleets and operators that rely on them, ” explains John Harris, Co-founder and CEO, Harbinger. “There are some fleets whose needs simply can’t be met with a purely electric vehicle—and we recognize that. Our hybrid is designed for use cases and routes that go beyond what an all-electric system typically supports. The series hybrid delivers the benefits of an electric drivetrain, along with the added confidence of a range extender when needed.”
Advertisement – scroll for more content
In addition an up-front cost that should make it an attractive prospect for fleet buyers, the new Harbinger EREV pack performance that should made it attractive for its drivers, too. The new chassis’ electric powertrain delivers 440 hp and 1,140 lb-ft of tq for quick acceleration into traffic and smooth running, even under load. Charging performance is also quick, with the ability to get the big battery from 10-80% charge in just under an hour on a 150 kW port.
You’ve heard all this before
Thor hybrid RV concept; via Thor.
If that sounds familiar, that’s because it is. This medium-duty chassis was first shown last year, making its debut under a Thor Class A motorhome concept that we covered in September. That vehicle promised the same great EREV range and capability to a market that values independence and spontaneity more than most, and bringing those values to a medium-duty commercial market that’s lapping up “messy middle” propaganda from Shell NACFE is just smart business.
The new Harbinger chassis’ batteries are manufactured by Panasonic. No word on who is making the 1.4L ICE generator, but my money’s on the GM SGE four-cylinder last seen in the gas-powered Chevy Spark. You guys are smart, though – if you have a better guess who the supplier might be, let us know in the comments.
If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them.
Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.
FTC: We use income earning auto affiliate links.More.
President Donald Trump wants to revive the struggling coal industry in the U.S. by deploying plants to power the data centers that the Big Tech companies are building to train artificial intelligence.
Trump issued an executive order in April that directed his Cabinet to find areas of the U.S. where coal-powered infrastructure is available to support AI data centers and determine whether the infrastructure can be expanded to meet the growing electricity demand from the nation’s tech sector.
Trump has repeatedly promoted coal as power source for data centers. The president told the World Economic Forum in January that he would approve power plants for AI through emergency declaration, calling on the tech companies to use coal as a backup power source.
“They can fuel it with anything they want, and they may have coal as a backup — good, clean coal,” the president said.
Trump’s push to deploy coal runs afoul of the tech companies’ environmental goals. In the short-term, the industry’s power needs may inadvertently be extending the life of existing coal plants.
Coal produces more carbon dioxide emissions per kilowatt hour of power than any other energy source in the U.S. with the exception of oil, according to the Energy Information Administration. The tech industry has invested billions of dollars to expand renewable energy and is increasingly turning to nuclear power as a way to meet its growing electricity demand while trying to reduce carbon dioxide emissions that fuel climate change.
For coal miners, Trump’s push is a potential lifeline. The industry has been in decline as coal plants are being retired in the U.S. About 16% of U.S. electricity generation came from burning coal in 2023, down from 51% in 2001, according to EIA data.
Peabody Energy CEO James Grech, who attended Trump’s executive order ceremony at the White House, said “coal plants can shoulder a heavier load of meeting U.S. generation demands, including multiple years of data center growth.” Peabody is one of the largest coal producers in the U.S.
Grech said coal plants should ramp up how much power they dispatch. The nation’s coal fleet is dispatching about 42% of its maximum capacity right now, compared to a historical average of 72%, the CEO told analysts on the company’s May 6 earnings call.
“We believe that all coal-powered generators need to defer U.S. coal plant retirements as the situation on the ground has clearly changed,” Grech said. “We believe generators should un-retire coal plants that have recently been mothballed.”
Tech sector reaction
There is a growing acknowledgment within the tech industry that fossil fuel generation will be needed to help meet the electricity demand from AI. But the focus is on natural gas, which emits less half the CO2 of coal per kilowatt hour of power, according the the EIA.
“To have the energy we need for the grid, it’s going to take an all of the above approach for a period of time,” Kevin Miller, Amazon’s vice president of global data centers, said during a panel discussion at conference of tech and oil and gas executives in Oklahoma City last month.
“We’re not surprised by the fact that we’re going to need to add some thermal generation to meet the needs in the short term,” Miller said.
Thermal generation is a code word for gas, said Nat Sahlstrom, chief energy officer at Tract, a Denver-based company that secures land, infrastructure and power resources for data centers. Sahlstrom previously led Amazon’s energy, water and sustainability teams.
Executives at Amazon, Nvidia and Anthropic would not commit to using coal, mostly dodging the question when asked during the panel at the Oklahoma City conference.
“It’s never a simple answer,” Amazon’s Miller said. “It is a combination of where’s the energy available, what are other alternatives.”
Nvidia is able to be agnostic about what type of power is used because of the position the chipmaker occupies on the AI value chain, said Josh Parker, the company’s senior director of corporate sustainability. “Thankfully, we leave most of those decisions up to our customers.”
Anthropic co-founder Jack Clark said there are a broader set of options available than just coal. “We would certainly consider it but I don’t know if I’d say it’s at the top of our list.”
Sahlstrom said Trump’s executive order seems like a “dog whistle” to coal mining constituents. There is a big difference between looking at existing infrastructure and “actually building new power plants that are cost competitive and are going to be existing 30 to 40 years from now,” the Tract executive said.
Coal is being displaced by renewables, natural gas and existing nuclear as coal plants face increasingly difficult economics, Sahlstrom said. “Coal has kind of found itself without a job,” he said.
“I do not see the hyperscale community going out and signing long term commitments for new coal plants,” the former Amazon executive said. (The tech companies ramping up AI are frequently referred to as “hyperscalers.”)
“I would be shocked if I saw something like that happen,” Sahlstrom said.
Coal retirements strain grid
But coal plant retirements are creating a real challenge for the grid as electricity demand is increasing due to data centers, re-industrialization and the broader electrification of the economy.
The largest grid in the nation, the PJM Interconnection, has forecast electricity demand could surge 40% by 2039. PJM warned in 2023 that 40 gigawatts of existing power generation, mostly coal, is at risk of retirement by 2030, which represents about 21% of PJM’s installed capacity.
Data centers will temporarily prolong coal demand as utilities scramble to maintain grid reliability, delaying their decarbonization goals, according to a Moody’s report from last October. Utilities have already postponed the retirement of coal plants totaling about 39 gigawatts of power, according to data from the National Mining Association.
“If we want to grow America’s electricity production meaningfully over the next five or ten years, we [have] got to stop closing coal plants,” Energy Secretary Chris Wright told CNBC’s “Money Movers” last month.
But natural gas and renewables are the future, Sahlstrom said. Some 60% of the power sector’s emissions reductions over the past 20 years are due to gas displacing coal, with the remainder coming from renewables, Sahlstrom said.
“That’s a pretty powerful combination, and it’s hard for me to see people going backwards by putting more coal into the mix, particularly if you’re a hyperscale customer who has net-zero carbon goals,” he said.
A federal court judge in Michigan has placed the once-promising electric truck brand Bollinger Motors’ assets into receivership following claims that the company’s owners still owe its founder, Robert Bollinger, more than $10 million.
Now, Automotive News is reporting on some of the more convoluted details of the Mullen purchase deal, with Robert (for ease of distinguishing the man from the brand) claiming that Mullen Automotive owes him more than $10 million for a loan he made to the company in 2024.
Just how Robert ended up giving Mullen Automotive $10 million to take his eponymous truck brand off his hands is probably one of those capitalistic mysteries that I’ll never understand, but Mullen’s response was perfectly clear: they didn’t even bother to show up to court.
Advertisement – scroll for more content
Bollinger claims that at least two suppliers are also suing Mullen for unpaid debts. As such, the Honorable Terrence G. Berg has put the Bollinger brand into receivership, and its assets have been frozen in preparation for everything being liquidated. Worse, for Bollinger, the official court filings reveal a company that is really very much doing not awesome:
The testimony and evidence—which Defendant’s counsel conceded accurately reflected Defendant’s finances—showed that Defendant is in crisis. For months Defendant has owed more than twenty million dollars to suppliers, contractors, service providers, and owners of physical space. These debts are owed to parties who are critical for Defendant’s functioning. CEO Bryan Chambers testified that Defendant was locked out of its production facilities on May 5, 2025, and that the owner of the production facilities was seeking to permanently evict Defendant. The Court heard that Defendant had been prevented from accessing its critical manufacturing accounting system for a short time at the end of April 2025, before making a partial payment to restart services.
You can read the full court decision, which I’ve embedded here, below. Once you’ve taken it all in, feel free to rush into the comments to say you told me so, since I really thought hoped the Bollinger B1 had a shot. Silly me.