ROCKBROS Portable Bicycle Compact Folding Commuter Bike 20 inch Shimano 8-speed
This page is affiliate-supported. Prices and availability can change after the last marketplace refresh.
About this product
The ROCKBROS Portable Bicycle is a 20-inch compact folding commuter bike designed for unisex adults, featuring an 8-speed Shimano drivetrain. It boasts a chrome-molybdenum steel folding frame and high-carbon steel rigid fork, complemented by wire-actuated mechanical disc brakes for reliable stopping power. This 2024 model includes lightweight and foldable pedals, aluminum alloy components, and a padded comfort saddle, suitable for riders between 140-185 cm. It comes with a 3-year manufacturer warranty.
Our take
This ROCKBROS folding bike presents a compelling option for commuters prioritizing portability and convenience. The chromoly steel frame offers a good balance of strength and ride quality, and the quick-release folding mechanism makes storage and transport straightforward. The 8-speed Shimano drivetrain, paired with trigger shifters, provides sufficient gearing for most urban environments, and the mechanical disc brakes are a welcome feature for consistent all-weather stopping. The 20-inch wheels contribute to its compact folded size, though they might feel less stable at higher speeds compared to larger wheels. The inclusion of a 3-year warranty and a modern 2024 model year adds peace of mind for a product in this price range.
Pros & Cons
Pros
- Compact folding chrome-molybdenum steel frame
- Reliable mechanical disc brakes
- 8-speed Shimano drivetrain
- Lightweight, foldable pedals
- Includes 3-year manufacturer warranty
Cons
- Rigid fork, no suspension
- 20-inch wheels may feel small for some
- Tubeless tires require specific maintenance
Specifications
- Handlebar Type Flat Bar
- Chain 14G Medium-Carbon Steel w/Copper Links
- Wheel Size 20 in
- Frame 20" Chrome-Molybdenum Steel Folding
- Fork High-Carbon Steel Rigid Fork
- Front/Rear Brakes Wire-Actuated Mechanical Disc Brakes
Show all 44 specifications
- Rider Height Range
- 140-185 cm
- Handlebars
- Aluminum Alloy Riser Bar
- Shifting
- Shimano 8-Speed Trigger Shifters
- Item Length
- 150cm
- Number of Speeds
- 8 Speed
- Stem
- Aluminum Alloy Folding
- Vintage
- No
- Saddle
- Padded Comfort Saddle
- Department
- Unisex Adults
- Model Year
- 2024
- Cassette
- Shimano 8-Speed, 11-32T
- Unit Type
- Unit
- Bottom Bracket
- Sealed Cartridge Bearing
- Manufacturer Warranty
- 3 Years
- Item Height
- 97-107cm
- Features
- Lightweight, Foldable pedals
- Rims
- Double-Layer Aluminum Alloy
- Folding Mechanism
- Quick-Release Locking Hinge
- Derailleur
- Shimano 8-Speed Rear Derailleur
- Hubs
- Aluminum Alloy Quick-Release
- Grips
- Ergonomic Rubber Grips
- Package Specifications
- 82*34.5*65cm
- Bike Type
- Folding Bike
- Tire Type
- Tubeless Tires
- Crankset
- Aluminum Alloy, 32/52T
- Material
- Aluminum Alloy
- Brand
- ROCKBROS
- Seatpost
- Aluminum Alloy, 30.9mm
- Custom-Built
- No
- Brake Type
- Disc Brake - Mechanical
- Suspension Type
- No Suspension
- Model
- 70030004
- Max Rider Weight
- 100 kg
- Shifter Style
- Trigger Shifter
- Gear Change Mechanism
- Derailleur Gears
- Item Weight
- 12Kg
- Country of Origin
- China
- Frame Size
- 20 in
