The RadExpand 5 is Rad Power Bikes’ folding commuter, built for riders who need to store their e-bike in a small apartment, elevator building, or car trunk. We tested its fold-and-carry practicality alongside its ride quality over several weeks of daily commuting.
Review Methodology: Unit purchased at retail. Tested on a daily apartment-to-office commute including stairs, elevators, and car-trunk storage.
RadExpand 5 Key Specs
| Spec | Detail |
|---|---|
| Motor | 750W geared hub |
| Battery | 48V 14Ah (672Wh), removable |
| Range | 25-45 miles depending on assist level |
| Top Speed | 20 mph |
| Folded Dimensions | 39 x 28 x 18 inches |
| Weight | 66 lbs |
| Price | $1,299 |
Folding Mechanism and Storage
The frame folds in three points, handlebar stem, frame hinge, and pedals, down to a compact enough size to fit in a car trunk, closet, or under a stairwell. The fold takes about 15-20 seconds once you’re used to the sequence, and the folded package stays together with a magnetic latch rather than requiring a separate strap.
Ride Quality Unfolded
Despite the folding frame, the RadExpand 5 doesn’t feel noticeably less stable than Rad’s non-folding commuters at normal speeds. The smaller 20-inch wheels do transmit more road vibration on rough pavement than larger-wheeled commuters, which matters on longer rides but is barely noticeable on short trips.
Real-World Range Testing
Over a 5-mile daily commute at assist level 2, we averaged 36 miles per charge, landing comfortably within the advertised 25-45 mile range. Riders relying more on throttle should expect range closer to the lower end.
Who Should Buy the RadExpand 5
This bike suits apartment or condo dwellers without dedicated bike storage, and commuters who combine an e-bike with a car or train for part of their trip. Riders with garage storage and no folding requirement will get a smoother ride and lower weight from Rad’s non-folding commuter models instead.
Frequently Asked Questions
Does folding weaken the frame over time?
The folding hinges are rated for daily use over the bike’s lifespan and didn’t develop noticeable play or looseness during our testing period. Periodic hinge bolt checks are still good practice, as with any folding bike.
Will it fit in a small car trunk?
At 39 x 28 x 18 inches folded, it fits in most sedan and hatchback trunks, though you should measure your specific trunk space if it’s on the smaller side.
Final Verdict
The RadExpand 5 delivers genuine fold-and-store convenience without sacrificing much ride quality compared to Rad’s non-folding commuters. Range held up well in daily testing, making it a solid pick for riders whose living situation demands a folding frame.
