The Matchup
The Lectric XP 4.0 and Rad Power RadExpand 5 Plus are the two most-discussed folding e-bikes in every cycling forum and Reddit thread right now. One costs $999. The other costs $1,899. They're both 750W-class folding bikes with 20-inch wheels. So what does the extra $900 actually buy you?
We rode both bikes daily for two weeks each, on the same routes, with the same rider. Here's the honest breakdown.
Motor and Pedal Assist
Both bikes have torque sensors now -- a major upgrade for the Lectric, which used cadence sensors through the XP 3.0. In practice, the RadExpand's 64Nm motor feels slightly smoother at low speeds, particularly during startup from a dead stop. The Lectric's motor is more aggressive in sport modes but perfectly smooth in eco and tour.
For commuting, this is a wash. Both feel natural. For technical riding at low speeds (parking lots, narrow paths), the RadExpand has a slight edge in modulation.
Ride Quality
The RadExpand 5 Plus has 50mm of front suspension. The Lectric XP 4.0 has a rigid fork. On smooth pavement, you won't notice the difference. On potholed city streets, broken sidewalks, or gravel paths, the RadExpand is noticeably more comfortable. Your wrists and shoulders will thank you after 10+ miles on rough surfaces.
Both bikes have fat tires (4" on the Lectric, 3" on the RadExpand), which absorb some bumps regardless. But suspension is suspension. It helps.
Folded Size and Weight
The Lectric folds smaller and weighs less. The XP 4.0 hits about 62 pounds. The RadExpand 5 Plus is closer to 69 pounds. Seven pounds doesn't sound like much until you're lifting a folded bike into a car trunk or carrying it down subway stairs.
Folded dimensions favor the Lectric slightly, though both fit in most car trunks. If portability is a primary concern, the Lectric wins this category.
Features and Build
The RadExpand 5 Plus comes with turn signals, a UL-2271 certified battery, and folding pedals. The Lectric has a removable TFT color display with USB-C charging. Both have hydraulic brakes, integrated lights, and rear racks.
Rad Power's battery certification (UL-2271) is a genuine safety differentiator. It means the battery has been independently tested for thermal runaway, short circuit, and other failure modes. Not all e-bike brands pursue this certification. If battery safety matters to you (and it should), this is a real point in Rad's favor.
Range
Lectric XP 4.0 750: roughly 50-65 miles real-world. RadExpand 5 Plus: roughly 35-45 miles real-world. The Lectric's larger battery gives it a meaningful advantage here. If your commute is 15+ miles each way, the Lectric is the safer bet for round-trip range without charging at work.
The Verdict
Buy the Lectric XP 4.0 ($999-$1,299) if: you want the best value, need maximum range, prioritize portability, or have a mostly smooth commute.
Buy the RadExpand 5 Plus ($1,899) if: you ride on rough roads, value front suspension, want UL-certified battery safety, or prefer a slightly more refined low-speed feel.
Both are excellent bikes. The Lectric is the better value. The RadExpand is the better ride on rough surfaces. Neither is a wrong choice.
Want to see our full rankings? Check our best folding e-bikes of 2026 roundup.