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Leoguar's heavy-rider eBikes are rated for 300 lb riders, powered by 750W motors (1000W peak), and UL 2849 certified as complete bikes — not just batteries. Starting at $1,489 with free US shipping from Texas and a 2-year warranty.
Both Fastron SO and Fastron ST are rated for riders up to 300 lb. If you plan to carry cargo, bags, or accessories, check the total payload limit and include that extra weight when choosing your setup.
UL 2849 / UL 2271
Certified
Factory-Direct
From $1,050
Free US Shipping
From Texas
Up to 60-Mile
Range
2-Year
Warranty
Why Choose an Ebike for Heavy Riders?
Heavy riders need an electric bike that handles real weight without flexing under load, losing range on hills, or wearing out the drivetrain in a season. The right ebike for overweight rider should at least have a reinforced aluminum frame with high-torque motors, oversized fat tires for stability, and battery capacity sized for the extra wattage demand of carrying 250+ lbs. Compromise on any of those three — frame, motor torque, battery — and you'll feel it on the first incline.
Both models in this collection — the Fastron SO and Fastron ST — are built on Leoguar's aluminum alloy frame from our own factory, together with a 750W hub motor (1000W peak) and a 720Wh battery rated for up to 60 miles per charge. The 4"+ fat tires carry a 300 lb weight capacity and distribute rider load across a wider contact patch, reducing ground pressure and improving traction on mixed terrain.
Heavy Duty Ebikes Comparison
| Model | Price | Range | Battery | Motor | Best For |
|---|---|---|---|---|---|
| Fastron SO Fat Tire Ebike | $1,489 | Up to 60 mi | 720 Wh | 750W hub (1000W peak) | Heavy riders wanting step-over frame, mixed terrain |
| Fastron ST Fat Tire Ebike | $1,489 | Up to 60 mi | 720 Wh | 750W hub (1000W peak) | Heavy riders preferring easy step-through mount |
Which Ebikes to Choose as a Heavy Rider?
Fastron SO Fat Tire Ebike — $1,489
The Fastron SO runs a step-over aluminum frame with 4"+ fat tires and full suspension — the configuration heavy riders ask for most when terrain mixes pavement, sand, and trail. The 750W hub motor (1000W peak) delivers genuine torque under load, the 720Wh battery covers up to 60 miles per charge, and the 26"×4.0" fat tires carry a 300 lb weight capacity. Tektro hydraulic disc brakes give you reliable stopping power regardless of rider weight. Available in Avocado Green, Dark Coffee, Matt Black, and Champ Gold.
Ideal for: heavier all-terrain riders who can swing a leg over a top tube and want one bike for sand, snow, and dirt. Riders comparing frame styles should also see our Off-Road Electric Bikes collection for the full off-road range.
Fastron ST Fat Tire Ebike — $1,489
Same 750W motor, same 720Wh battery, same 4"+ fat tires, same 300 lb capacity, and same all-terrain capability as the Fastron SO — what changes is the frame. The step-through geometry drops the top tube so you can plant a foot on the ground and swing the other leg through instead of lifting it over a high crossbar. That's a meaningful difference when you're carrying extra weight, dealing with knee or hip limitations, or stopping frequently in traffic.
Ideal for: seniors, riders with limited mobility, and any heavy rider who finds top-tube clearance uncomfortable. Browse the full Step-Through eBikes collection for more low-step options.
Fastron SO or Fastron ST — Which Is Right for You?
Both models share the same motor, battery, fat tires, weight capacity, and price — the only decision is frame style.
Do you have any hip, knee, or back limitations?
- Yes → choose the Fastron ST. The step-through frame lets you plant a foot and step through instead of lifting a leg over the top tube — a real difference when you're heavier or dealing with joint issues.
- No → either works. The Fastron SO's step-over triangle is marginally stiffer under aggressive trail use.
How do you typically mount and dismount?
- Frequent stops in traffic or around cargo → Fastron ST (step-through is faster for repeated stop-and-go).
- Long rides with few stops → Fastron SO (traditional geometry, slightly more aggressive feel).
Do color options matter?
- The Fastron SO ships in four colors: Avocado Green, Dark Coffee, Matt Black, and Champ Gold.
- If color is secondary to easy mounting, go with the Fastron ST.
For more low-step options across categories, see our Step-Through eBikes collection.
The Safety Standard Most Heavy-Rider eBikes Skip
The ebike fire problem is real, and it's heavier-bike-shaped. Battery packs sized for 750W motors and 80–100 mile range pull more current, generate more heat, and fail more dramatically when cells are uncertified. That's why New York City's Local Law 39 now requires UL 2849 certification on ebikes sold in the city — and it's why a growing number of insurance carriers and apartment buildings are following suit. Most direct-import ebike brands certify only the battery, or skip certification entirely.
Every Leoguar model is full-bike UL 2849 certified — meaning the frame, motor, controller, charger, and battery were tested together as a complete electrical system, not just the battery cell. Battery packs additionally meet UL 2271. We engineer the electronic control system in-house, which is what lets us submit the complete bike for certification rather than stitching together third-party components and hoping they pass.
Both Fastron models are Class 2 throttle-equipped eBikes with a 20 mph assisted top speed (28 mph max) — the class most widely accepted on multi-use paths, state parks, and BLM land. Check your local ordinances before riding on restricted trails. For the full off-road-rated lineup, browse our Off-Road Electric Bikes.
Frequently Asked Questions About Heavy-Rider eBikes
Both Fastron models — the SO and ST — are rated for up to 300 lbs. The 4"+ fat tires distribute load across a larger contact patch than standard tires, which reduces frame stress and improves stability at higher rider weights. The proprietary aluminum alloy frame is engineered in-house to the same structural standard across both models. Confirm exact payload ratings on the product page before purchase.
Fat tires (4 inches wide or more) spread rider weight across a larger contact patch, which reduces ground pressure, improves traction on loose surfaces, and lowers pinch-flat risk — all of which matter more as rider weight increases. The Fastron SO and Fastron ST use the same 26"×4.0" fat-tire format and the same 300 lb rated frame, so the choice between them comes down to step-over vs step-through frame, not capability.
The Fastron SO and Fastron ST carry a 720Wh battery rated for up to 60 miles of pedal-assist range under favorable conditions — flat terrain, eco mode, moderate assist, no headwind. Heavier riders in higher assist levels on hilly terrain should plan for 30–45 miles realistically. Running the throttle without pedaling draws more current and reduces range further — budget conservatively if your route includes significant elevation gain.
Yes — every complete Leoguar bike carries full-bike UL 2849 certification, and battery packs additionally meet UL 2271. This is the standard required by NYC Local Law 39 and increasingly demanded by insurance providers and apartment buildings. Most competitor brands certify only the battery; we certify the whole electrical system because we engineer the controller in-house.
Step-through frames (Fastron ST) are easier to mount, especially for riders with limited hip or knee flexibility, and they don't sacrifice frame strength on Leoguar's properly engineered aluminum design. The step-over frame (Fastron SO) offers slightly more aggressive geometry preferred by sportier riders. Both models share the same motor, battery, fat tires, and 300 lb rated capacity — for most heavy riders who prioritize comfort over trail aggression, step-through is the easier daily choice.
We ship every order from our US warehouse in Sugar Land, Texas — there are no customs delays, no overseas freight, and shipping is free within the contiguous US. Most orders dispatch within 1–2 business days. Sugar Land is a Houston-area hub with strong national carrier coverage.
Every Leoguar ebike includes a 2-Year Limited Warranty covering the frame, motor, battery, and electronic control system against manufacturing defects. We also offer a 14-Day Return policy. Because we run our own frame factory and electronic-control R&D, warranty claims go directly to the manufacturer — not a reseller chain.
The Fastron SO and Fastron ST are mechanically identical — same 750W motor (1000W peak), same 720Wh battery, same 26"×4.0" fat tires, same 300 lb capacity, same $1,489 price. The only difference is the frame: the SO uses a traditional step-over triangle; the ST uses a low step-through design for easier mounting. Choose the ST if you have any joint limitations or prefer quick stop-and-go mounting; choose the SO if you prefer classic geometry and want four color options. For more comparisons in this price range, see our buyer's guide to the best ebikes under $1,500.
