







Price: null - $308.88
(as of Sep 19, 2026 07:08:17 UTC – Details)
From the brand




Varstrom since 2018
Varstrom creates high‑performance e‑bike conversion systems, offering mid‑mount & hub motor kits, smart displays, batteries and essential components. More than a supplier, we aim to be your trusted ride partner. Through innovation and meticulous craftsmanship, we deliver remarkable power, responsive performance and freedom for global riders. Favored by DIY tinkerers and pros on Amazon, Varstrom reshapes electric riding experiences.
Varstrom Mid Drive Kits
Varstrom Hub Motor Kit
Varstrom Battery
More Bike Accessories
More Bike Accessories


Mid Drive Conversion Kit


Mid Drive Conversion Kits


Hub Conversion Kits


[ Torque Sensor Mid Drive System for Natural Riding Feel ] The TSDZ series features an advanced torque sensor that automatically adjusts motor assistance according to pedaling force, delivering a smooth, responsive and natural riding experience. Compared with cadence-based systems, power output feels more intuitive and efficient, making starts, acceleration and climbing more comfortable while helping extend battery range for daily riding
[ Choose Motors to Match Usage ] Multiple power variants suit diverse riding demands. The 48V 500W generates 80N.m peak torque with a top speed of 40km/h, offering steady power perfectly suited for daily city commutes. The 48V 750W reaches 140N.m torque and 50km/h max speed, excellent for hilly routes and sustained steep climbs. The powerful 48V 1000W outputs 160N.m torque up to 60km/h, ideal for off-road trips, cargo transport and high-speed custom builds pursuing strong dynamic performance
[ 4 Riding Modes for Total Control ] Switch seamlessly between E-bike, Pedal Assist, Walk Assit , or Traditional Cycling mode to match your energy, terrain, or fitness goals. Preserve knee health on steep climbs, save time with electric throttle, or enjoy exercise—all while the LCD display tracks speed, mileage, battery life, and time. Upgrade to the EKD01 Blue*tooth display for navigation and ride analytics
[ All-Weather Durability & Universal Compatibility ] Built for year-round adventures, this IP65 waterproof mid drive electric bike kit thrives in rain, snow (-20°C to 45°C), and daily weather. Compatible with road bikes, mountain bikes, hybrids, or even tricycles (68-73mm BB width), it’s perfect for commuters, seniors, or delivery riders seeking reliability. Includes pre-installed cables, detailed guides, and plug-and-play components—no expertise needed to revive your old bike!
[ Customizable Battery Options with Security ] Choose from downtube or rear-rack batteries to fit your budget and range needs. All batteries feature anti-theft locks, certified safety systems, and clear charge indicators. Extend rides up to 55Mile* (*varies by capacity) for errands, scenic tours, or hassle-free senior mobility
[ Affordable Eco-Upgrade for Every Rider ] Skip expensive e-bikes—revive your current bicycle into a high-performance electric machine at a fraction of the cost! Seniors gain effortless mobility; commuters slash riding time; adventurers tackle rugged trails
Customers find the mid drive kit’s speed impressive, with one mentioning it helps maintain speed when going up hills and against the wind. The installation process receives positive feedback, with customers noting it’s not overly difficult.
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