Luna Cycle is known for pushing the boundaries of electric bike performance, and the Luna X2 Enduro e-bike is a prime example. This carbon fiber, full-suspension mountain bike packs a punch with its Bafang M600 motor and a high-capacity 48V battery, delivering an astonishing 2.5kW of power in its Ludicrous configuration. Priced at a competitive $4,000, the Luna X2 promises moto-like speeds on a mountain bike frame, capable of exceeding 30mph on flat trails.
Having spent nearly a year riding the Luna X2 with the optional Ludicrous upgrade, it’s clear this bike is something special. However, it comes with a few important considerations for riders looking to harness its full potential.
Luna X2 Enduro
The Luna X2 Ludi: Bridging E-Bike and Moto Performance
Luna Cycle has carved a niche for itself with unique electric bikes and even electric motos, and the Luna X2 Ludi perfectly embodies this blend. It takes the Class 3 rated Bafang M600 motor, advertised at 500W and 120Nm of torque, and through innovative engineering, pushes it to deliver over four times its rated power, reaching peaks of 2500W. This remarkable power output is what sets the Luna X2 apart in the e-bike market.
Close up of the Bafang M600 motor and Luna's custom controller on the X2 Enduro e-bike.
The advantages of this power are immediately apparent. The acceleration is breathtaking, even on steep inclines, providing a riding experience that rivals lightweight electric motorcycles. However, this level of performance also introduces challenges. Operating the motor far beyond its specifications naturally raises concerns about overheating. Luna Cycle, known for their expertise in modifying Bafang motors, particularly the M600, has implemented a custom controller with advanced heat dissipation to mitigate this issue. After extensive riding, the system largely works, though thermal management remains a key aspect of riding the X2 Ludi to its limits.
Another consideration arises from channeling 2.5kW of power through components designed for significantly less. The mountain bike drivetrain, including the sprocket and chain, is subjected to stresses far beyond their typical operating range. While careful gear management is necessary to prevent damage, the Luna X2 has shown impressive durability, withstanding high-torque situations and challenging climbs without catastrophic failures observed on some other high-power e-bikes. The sheer power also translates to impressive hill-climbing ability, often lifting the front wheel and requiring rider input to manage steering and avoid unintended wheelies on steeper ascents.
Managing Heat and Maximizing Performance
During demanding climbs, managing motor temperature becomes crucial. Pushing the Luna X2 up long, steep hills at high speed can lead to the motor overheating and shutting down as a safety measure. In such situations, reducing speed and power output is necessary to allow the motor to cool. However, understanding how to optimize riding technique and utilize available tools can significantly extend performance.
Screenshot of the VESC tool app displaying real-time motor temperature and bike vitals on a smartphone.
The VESC app, downloadable for a small fee, provides real-time data on the bike’s vitals, including motor temperature. This tool is invaluable for riders looking to fine-tune their riding and monitor the thermal performance of the motor. By keeping an eye on the motor temperature gauge within the VESC app, riders can proactively adjust their riding style to stay within optimal temperature ranges. Maintaining a high cadence during steep climbs also aids in motor cooling and reduces amperage draw, further preventing overheating. Customizable rider profiles within the VESC app allow for tailored power and speed settings, adapting the bike’s performance to different terrains and riding preferences.
While the high-power capabilities of the Luna X2 might be slightly limited in freezing temperatures due to battery and controller performance, the bike quickly returns to its full potential as components warm up. Once a rider understands the thermal characteristics and learns to manage power output effectively, the Luna X2 can be pushed to its limits, delivering exhilarating performance across diverse terrains.
Rider on the Luna X2 climbing a mountain trail, showcasing its off-road capabilities.
The Luna X2’s climbing ability is particularly noteworthy. It effortlessly tackled a significant mountain ascent, Bromley Mountain, demonstrating its capability to climb challenging terrain without overheating issues when ridden with appropriate pedal assist levels. The combination of a lightweight frame and powerful motor makes climbing genuinely enjoyable, opening up access to trails that would be strenuous or inaccessible on traditional mountain bikes. The impressive battery range allows for multiple extended rides on a single charge, making it suitable for adventurous explorations.
Multiple images showcasing the Luna X2 in various outdoor trail environments.
Image of Luna X2 e-bike on a dirt trail in a forest setting.
Luna X2 e-bike parked on a rocky trail with natural background.
Close up image of Luna X2 tires and suspension on a trail.
Luna X2 Component Highlights
The Luna X2 boasts a selection of high-quality components that contribute significantly to its performance and value, justifying its price point even before considering the electric powertrain.
- Front Fork: Rockshox Debonair Yari 160mm
- Rear Shock: Rockshox Deluxe Select+ 210mm x 55mm
- Drivetrain: Sram Eagle SX 12-speed cassette
- Brakes: Sram GUIDE 4 piston hydraulic brakes with 200mm front and 180mm rear rotors
- Tires: Maxxis Minion 27.5×2.8-inch
- Headset: 44 56 non-integrated
- Rims: Double wall alloy 40mm 27.5-inch
- Seatpost: Dropper seat-post with internal routing
Luna X-2 review side angle showcasing carbon frame.
The carbon fiber frame with its unique “metal flake galaxy” paint job enhances the bike’s aesthetics and helps to conceal the integrated 820Wh battery and Bafang M600 motor, giving it a look that closely resembles a traditional acoustic mountain bike. Despite its powerful electric capabilities, the Luna X2 maintains a relatively stealthy appearance. Luna’s commitment to pushing performance boundaries is evident in the X2’s design and components. The custom Ludi v2 controller is central to unlocking the motor’s high power output, delivering up to 2500 watts and offering a user-adjustable pedal assist system alongside raw throttle response.
The Luna X2 is available in three frame sizes to accommodate a range of riders.
Size chart diagram for Luna X2 e-bike frame sizes.
Electrek’s Verdict: A Ludicrously Fun Mountain Bike
The Luna X2 Enduro e-bike lives up to its “Ludicrous” moniker, delivering exceptional performance in a lightweight carbon fiber package. It competes favorably with higher-priced e-bikes from established brands, often offering superior components for the price. The standout feature is undoubtedly the drivetrain, providing bursts of power comparable to electric motos, transforming trail riding into an exhilarating experience.
While the high power output requires some rider awareness regarding heat management and component stress, these are manageable aspects for riders who understand the bike’s capabilities. The recent price reduction makes the Luna X2 an even more compelling option for e-bike enthusiasts seeking high performance without breaking the bank.
Multiple images of the VESC app interface on a smartphone displaying various bike metrics.
Screenshot of VESC app showing detailed motor performance parameters.
Image of VESC app interface displaying battery and controller information.
VESC app screenshot focusing on temperature and power readouts.
For riders seeking maximum power and a thrilling ride experience, Luna also offers the Z1, a model with a Bafang Ultra motor that provides substantial power without the need for hot-rodding, albeit with a slightly heavier motor.
In conclusion, the Luna X2 is a hot rod of the e-bike world, offering a unique blend of power, performance, and value that is hard to beat for adventurous riders looking to push their limits on the trails.
