AMPX 5000W MTX High-Performance E-Bike Conversion Kit (72V Rear Hub)
$562.00 Original price was: $562.00.$396.10Current price is: $396.10.
Unleash blistering off-road performance. The AMPX 5000W MTX E-Bike Conversion Kit is the ultimate direct-drive powerhouse engineered to transform heavy-duty frameworks into high-speed electric monsters. Designed around a reinforced MTX alloy double-wall rim, this raw rear-wheel hub assembly hits speeds up to 100 km/h (62 mph) when paired with a high-current 72V battery. Equipped with a heavy-duty 80A controller, upgraded tracking dashboard, and reinforced torque arms, it delivers a massive 100+ N·m of torque right out of the box.
The Ultimate High-Performance DIY Powerhouse
Step away from underwhelming commuter setups and experience true high-power acceleration. The AMPX 5000W MTX Rear Hub Conversion Kit is engineered specifically for adrenaline enthusiasts, overland builders, and custom custom-bike projects (such as Stealth Bomber frameworks or heavy-duty hardtails). Delivering breathtaking torque and unmatched top-end speed, this gearless direct-drive system guarantees linear, quiet, and reliable power delivery without complex mid-drive wear.
⚡ Technical Deployment Matrix
| System Attribute | Specification & Compatibility Parameters |
| Continuous Rated Power | 5000W Direct Drive Brushless Rear Hub |
| Peak Rotational Torque | 100+ N·m (Aggressive Launch Velocity) |
| Maximum Velocity Track | Up to 100 km/h (62 mph) |
| System Voltage Match | Engineered strictly for 72V Configurations |
| Standard Rear Dropout | 150mm Width (170mm fat-bike option available via email) |
| Rim Construction | Heavy-Duty MTX Alloy Double-Wall Rim (Fits 2.35”–2.5” tires) |
| Wheel Sizes Available | 26″ | 27.5″ | 29″ (700C) Rear Profile |
| Controller Framework | Heavy-Duty 80A Sinewave Controller |
| Included Hardware | 5000W Wheel, 80A Controller, SW900 Display, Full-Twist Throttle, PAS |
| Structural Safety | Heavy-Duty Reinforced Torque Arms Included |
Why the AMPX 5000W Kit Rules the Off-Road Circuit
🚀 Mind-Bending 100 km/h Performance Tier
Leave standard traffic tracking behind. The heavy-duty copper windings inside the direct-drive hub convert raw amperage into immediate forward motion, propelling you to legal track speeds quickly. Its brushless gearless design means there are zero internal nylon gears to strip or overheat under full-throttle loads.
🏁 Toughened MTX Double-Wall Rim Bed
Massive power requires premium structural shielding. Every kit comes laced with heavy-duty, high-gauge spokes into a rigid MTX alloy double-wall rim platform. Built to take the abuse of high-speed hits against ruts, tree roots, and deep trail transitions without coming out of true.
🛡️ Complete Structural Protection Included
With a motor this aggressive, frame preservation is critical. AMPX solves this by shipping heavy-duty reinforced steel torque arms with every single kit. This locks the flat-sided motor axle safely to your bike’s rear triangle, absorbing violent twisting forces and saving your dropouts from immediate spin-out failure.
📦 Comprehensive Kit Packing List
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1x 5000W Direct-Drive Rear Motor Wheel (Laced to MTX Rim)
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1x High-Current 80A Custom-Matched Controller
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1x Multifunctional SW900 Backlit LCD Dashboard Panel
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1x Full-Twist Right-Hand Throttle (with matching left grip)
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1x Pair of Integrated Safety Cutoff E-Brake Levers
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1x Pedal Assist System (PAS) Crank Sensor Disc
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2x Reinforced Structural Steel Torque Arms + Mounting Hardware
🚫 Critical Integration & Legal Notices
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🔋 Battery Discharge Prerequisite: This high-amp system excludes the battery. Your custom 72V battery pack must feature a Battery Management System (BMS) capable of handling an 80A continuous discharge current. Running a standard low-amp battery will cause internal thermal shutdown or damage your cells.
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📐 Chassis Frame Constraints: This kit features a 150mm dropout profile axle and is designed strictly for dedicated e-bike frames or extra-wide mountain frames. It will not slide into standard 135mm commuter bicycle drops or thru-axle layouts.
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⚖️ Legal Enforcement Notice: This conversion kit is intended and sold strictly for private property, closed-circuit track racing, or designated off-road tracking use.
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AMPX Universal E-Bike Torque Arm Kit – Standard & Reinforced Variations (250W to 5000W)
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