Luna is selling a bike with specs that don’t seem to be possible. A 58-pound carbon-fiber full-suspension mountain bike with a Bafang M600 motor and a 48V 18.5Ah battery that somehow achieves 2.5kW of power. That makes it a recently marked down $4,000 mountain bike with light moto-like speed that can propel the bike past 30mph on flat dirt.
I’ve been riding the Luna X2 with the $350 Ludicrous option for almost a year now, and I’ve grown to love this thing, but with some important caveats…
Luna X2 Ludi
Luna sells some special bikes and motos, and the Ludi X2, which bridges the two, might be the best example of that. They took the Class 3 500W-rated Bafang M600 Motor that advertises 120Nm of torque and are pumping more than quadruple rated power through there, sometimes up to 2500W.
While there are some amazing advantages to this – notably, the incredible acceleration, even uphill – it also presents some problems. Obviously, that motor should be overheating, considering both the way more volt and amps than it is specced for. Luna is famous for hot-rodding Bafang motors, however, especially the M600, and they’ve done some really smart stuff here with heat dissipation with their bespoke controller. After a year of riding this thing, I can say it somehow works! Mostly.
Another problem is when you add pedaling to 2.5kW of power – all of a sudden, a mountain bike sprocket and chain rated for under 1kW of power are going to be pushed to their limits. I’ve already melted some sprockets by mistakenly changing gears up a steep hill on the Frey CC. I’ve been careful to avoid doing that on the X2 Ludi, but I still experience some slippage in high-torque situations. Unlike the Frey CC, where I’ve lost use of my second lowest sprocket, however, I’ve not done any damage in a year of riding the Luna X2, even up significant hills.
Speaking of going up hills, that unbelievable power will often pull the front wheel off the ground when climbing steep hills, presenting issues with steering and unintended wheelies.
Overheating
My first ride up our local 800-foot hill was going great at about 20-plus mph until about two-thirds the way up – I lost power and got an “Error 10.” I was able to power cycle the bike, and after a few minutes, I regained power. After rooting around in the forums, I found that the motor was overheating and shutting down.
Obviously, I can slow down to around 15mph and a lot less power and get a lot farther. But I wanted to understand exactly what was going on. Turns out, in steep hill climb situations, you want to keep your cadence very high to cool the motor and lessen the amps requirement. Most people that push this thing to the limit use the VESC tool running on an Android app to fine-tune this thing and keep it running optimally.
Luna uses the VESC app to tweak the Ludicrous controller, which is a paid download for $4 for Android or iOS, but I got an older version from Luna’s site. It allows you to pair to Luna’s controller and get almost real-time readouts of most of the vitals of the bike. The app isn’t terribly user-friendly to set up but is incredibly informative and great for keeping an eye on speed. You can then create different rider profiles to allow you to change your speed and power characteristics. I did find the readout to be a little small on rides, as someone that requires glasses for reading. I guess I need a bigger Android tablet!
In my case, the important readout is the bottom right motor heat sensor. When you start going up a hill at high power output, it will start rocketing upward. Once you are at 100 degrees C, you’ll hit the orange indicator, which is your signal to lay off the throttle and lower the pedal assist. Because the heat indicator is lagging by a few seconds, the motor is probably already closing in on its 120-degree cutoff, so you need to cut power immediately.
You can scale back to lowering heat by limiting the motor to its original 500W 120nm output. That is still plenty for hill climbing, just not at 20-plus mph. I find the bike operates quite well in the 80-100°C range.
On the other side of the spectrum, I wasn’t able to coax out even half the power on freezing cold days. That’s a shame because the bike’s Maxxis Minion tires are great for snow. After a few minutes of riding, the battery and controller do heat up, and the characteristics again go back to normal.
Once I learned my way around the heat factors, I could push this thing to its maximum.
For instance, I was able to easily climb Bromley Mountain’s 1,334 feet (407 m) in Vermont, which doesn’t have a bike lift or official bike riding path. I made it up the mountain with level 2 pedal assist without even coming close to overheating (myself or the bike!). At the same time, with the light frame and still powerful motor, I was still flying up the mountain to the point that it was actually fun to climb.
Because there is no lift and most mountain bikes don’t have this kind of power, I had the mountain to myself and was even able to find some off-the-beaten-path trails, which were tons of fun.
I was able to do four separate rides up the mountain before I needed to recharge, which I thought was pretty impressive. Luna knows their batteries, and even with driving Ludi with these chonky tires, I was seeing ranges over 20 miles. If I put smoother tires on here and ran on a road, I could see hitting 40 miles at 20mph.
Luna X2 specs
The Luna X2 is loaded up with some premium, if not top-shelf, components that would almost justify the $4000 price tag without a battery and motor:
Rockshox Debonair Yari 160mm front fork
Rockshox Deluxe Select+ 210mm x 55mm in rear
Sram Eagle SX 12-speed cassette (standard HG driver, not the XD from SRAM)
Sram GUIDE 4 piston hydraulic brakes 200mm front 180mm back (6 bolts rotors)
Maxxis Minion 27.5×2.8-inch tires
44 56 non-integrated headset
Double wall alloy 40mm 27.5-inch rims
Dropper seat-post with internal routing
All cables throughout the bike are internally ran
Thru-axle hubs in both front and rear 15×110 Boost front, 12×148 Boost rear (length 180mm, 1.75 pitch)
160mm front travel and 140mm rear travel
One little extra bonus on the Luna X2 is the Carbon Fiber frame paint job. You’ll notice we’ve got the metal flake galaxy paint job, or as my wife likes to call it, “your glitter bike.” No shame here – I love the look of this thing.
In fact, to the untrained eye, the X2 looks a lot like an acoustic mountain bike. The 820Wh (48v 17.5Ah LG) battery is well hidden in the downtube, and the Bafang M600 motor or its heat sink only peeks out a bit from behind the pedals.
However, for those who know, the big “Luna” logo is what is going to be the big tell. Luna has long been outfitting electric bikes that pay more attention to what is possible than what is technically legal. Nowhere is that more apparent than the X2, which is described on Luna’s site:
This bike features our brand new Luna Controller the Ludi v2 which is a game changer. This controller will put out up to 60 battery Amps (2500 watts) As most Luna fans know, Luna has been hot-rodding Bafang motors for years with great success and this controller is sporting the heritage from our mighty BBSHD v2 controller. The Ludi v2 is 72V-rated controller which makes it extremely reliable at 48V and balances the user-adjustable buttery smooth pedal assist with the raw torque of 100 phase Amps readily available at the throttle. It even spins faster than any other M600 thanks to the Field Weakening and smoothly protects the motor from thermal overloads.
The X-2 comes in three sizes:
Electrek’s Take
The Luna X2 is truly a ludicrous mountain bike. It is a relatively light carbon fiber mountain bike that can hang with the more expensive bike shop brands, like Specialized Turbo Levo and Trek E-Caliber and, in many cases, has better components.
Where the Ludi X-2 really shines is the drivetrain. Having 2.5 kW of power at your disposal, even if just for short bursts, is like temporarily turning your mountain bike into a Talaria/Sur Ron and screaming across dirt roads at 30+mph. Having that power on a light mountain bike frame just doesn’t seem real.
Because of its high speed, I even found myself taking the X2 on my daily coffee shop commute if I was in a rush or wanted to blast up our big local hill.
The noted downsides of high power stress on the chain and sprockets as well as the overheating can be mitigated with some care and learning the bike. Luna has recently dropped the price of the X2, which can now be had for under $4K with an additional add-on for the Ludi controller.
Overall, this feels like the hot rod of mountain bikes, and I’m here for it.
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Alexander Vlaskamp, the outspoken CEO of MAN Trucks, claims that an electric semi truck can pay for itself in less than three years – but there are a few asterisks in that statement. We’ll try to unpack them all for you here.
The good news is that, in the EU, incentives are plentiful. MAN says those programs, together with Europe’s much higher diesel prices compared to the US (about $6.80/gal compared to $3.70, as I type this), can help the eTruck pay for itself in as little as two and a half years.
And, if you’re not familiar with European incentives for electric semi trucks, hold on to your hats because they are wild:
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up to 80% of vehicle purchase price subsidy in Austria (ENIN)
in Belgium, there’s a subsidy for up to 32% of the price of the truck (up to 2 trucks per company)
in Ireland, government incentives cover 30–60% of the up-front cost difference versus a comparable diesel truck
Norway offers a similar 60% diesel cost difference incentive
“It’s all about the charging infrastructure, that’s the problem,” Vlaskamp told Börsen-Zeitung. “When it comes to investment in charging stations, Europe is lagging far behind … what’s needed now is the political will to reverse this trend,” adding, “We need to act quickly.”
Charging is key
Charging an eTruck; via Man Trucks.
Spanish-language site Motorpasión notes that red tape isn’t the only reason charging lags. Driving investment into new charging infrastructure is lagging, too – but MAN’s CEO thinks there’s a simple fix: take half of annual toll revenues generated by commercial trucks (around €7 billion in Germany, alone) and funnel it directly into DC fast charging.
In addition to the still deficient charging network, another obstacle is the cost of electricity for charging. Vlaskamp proposes a reduced price for commercial truckers, as has traditionally been the case with diesel. Currently, the average price is 45 to 50 cents per kWh, but says the ideal would be, “between €0.20 and €0.30/kWh.”
TL;DR: if charging was cheaper and easier to access and the government was willing to subsidize EVs as much as they’ve subsidized oil with the creating and ongoing support of a globalized military industrial complex, MAN Trucks’ CEO thinks plug-in semis would be a no-brainer.
Head on down to the comments and let us know if you agree.
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.
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It’s Labor Day weekend, which means big deals on car lots across America – especially if you’re shopping for a new electric vehicle to help with your labor. We’ve rounded up the best offers on electric pickups, vans, and even a great option for ride share drivers!
Sure, there’s a bit of irony in pitching “work vehicles” on a holiday meant for not working – but for many small business owners, work is part of who they are. And with the $7,500 federal EV tax credit set to expire, plus a wave of great Labor Day deals on work-ready EVs, now might be the best time yet to plug into a new electric ride.
Here are some of the standout electric vehicles offers we found this Labor Day weekend (2025), organized by vehicle type.
Electric pickup | F-150 Lightning
F-150 Lightning; via Ford.
The “Ford for America,” summer sales event continues through Labor Day with interest-free 0% financing, $0 down payment, and zero payments for up to 90 days for retail customers. Ford is also throwing in $0 maintenance for 24 months.
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But wait, there’s more! Ford Authority is reporting that a complimentary home charger and standard installation might also be included as part of the Ford Power Promise promotion happening at participating dealers in select markets with the purchase of a new F-150 Lightning pickup through the end of September.
Lease customers aren’t being left out, either. You can lease a 2025 Ford F-150 Lightning XLT 4P 311A pickup at $399 per month for 36 months, with “just” $399 due at signing (basically your first month’s payment).
For your money, you get a capable, Ultium-based electric cargo van with more room than your college dorm and a nationwide dealer network to keep it up and running when you need it most.
Electric van (hon. mention) | Mercedes eSprinter
2024 eSprinter; via Mercedes-Benz.
Despite being based on the company’s existing diesel platform, Mercedes’ eSprinter has proven itself a capable urban hauler in the hands of Amazon, DHL, and countless European tradespeople. Despite that, there are still a handful of leftover 2024 models hanging around dealer lots – enough that Mercedes is offering up to $30,000 (!) Customer Cash on any new ’24MY eSprinter purchased from dealer stock.
As you can imagine, there’s some fine print on that Customer Cash deal. It can’t be combined with Special APR programs through Mercedes-Benz Financial Services (MBFS), but it can be combined with the Mercedes-Benz Commercial Vehicles Medium Fleet Program.
And, while we’re at it, it’s probably worth noting that serious road warriors will probably save more than $129/mo. in fuel alone.
If you prefer to own your vehicles after making payments on them for a few years, you can also get 0% interest financing on select ID.4s for up to 72 months. It’s important to note here that Volkswagen’s deals can vary wildly by region. That $129/mo. offer is available in California and a few other West Coast states, for example, but the electric crossover’s listed at $329 for 24 months with $4,499 due at signing in others.
Disclaimer: the vehicle models and financing deals above were sourced from CarsDirect, CarEdge, and (where mentioned) the OEM websites – and were current as of 29AUG2025. These deals may not be available in every market, with every discount, or for every buyer (the standard “with approved credit” fine print should be considered implied). Check with your local dealer(s) for more information.
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Sustainable construction experts McKinstry have teamed up with leading BESS developers Viridi and the Denver Public Library to deploy a first-of-its-kind solar and battery storage system that sets a new standard for fire safety.
The Denver Public Library sought a battery energy storage system (BESS) that could deliver cost savings without compromising safety for staff, visitors, or the architecturally significant, Michael Graves–designed structure itself. That required a battery backup solution that not only met the city’s fire safety standards, but also addressed public fears about the risk of lithium-ion battery fires.
That unique set of project priorities led the library to Viridi, makers of the RPSLinkEX battery solution that’s equipped with a unique, “passive Fail-Safe thermal management and anti-propagation technology” designed to prevent the sort of thermal runaway that leads to li-ion battery fires.
“Public facilities like the Denver Public Library are at the forefront of demonstrating that energy resilience and safety can go hand in hand,” said Jon M. Williams, CEO at Viridi. “This installation highlights how fail-safe battery storage can empower communities to maximize renewable energy, reduce costs, and maintain reliability – all without compromise.”
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Keeping it safe
Denver Public Library; by Michael Graves.
Viridi doesn’t talk too much about how its passive Fail-Safe thermal management system works, but if you’re picturing heat-dissipating layers, fire-resistant insulation, and strategically-placed phase change materials (or PCMs) limiting the transfer of heat from one cell to another if it begins to overheat, you’ve probably cracked it.
These passive safety features enable safer deployment scenarios in occupied buildings or near critical infrastructure by reducing dependence on active fire suppression systems like sprinklers or fire extinguishers, and convinced the City of Denver to move forward with the project, which is the city’s first-ever solar + battery storage system.
“The entire McKinstry team is very excited about developing and constructing the first Solar + BESS project for the City and County of Denver,” said Jon Ensley, Sr. Construction Project Engineer at McKinstry. “We are appreciative of all our partners and stakeholders who helped to achieve this goal. We value Viridi’s expertise in deploying this technology and the whole team has been great to work with.”
McKinstry says this latest solar project sets, “a new benchmark for how cities can combine renewable energy and battery storage without compromising safety.” And, with solutions like the RPSLinkEX building systems that meet city planners and politicians where they are, instead of trying to educated them about the objective, proven safety of li-ion batteries, Viridi is helping communities adopt cleaner, more resilient clean energy solutions sooner rather than later.
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.
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