
ROCKBROS Cycling Bike Computer Waterproof Bicycle Computer LCD Backlight Stopwatch Wireless Speedometer Odometer MTB Accessories
You will be redirected to AliExpress to complete your purchase
Specifications
- Brand Name
- ROCKBROS
- High-concerned chemical
- None
- Origin
- Mainland China
- Navigation
- N
- Touch Screen
- N
- Waterproof Level
- IPX5
- Automatic sleep
- Y
- auto-pause
- Y
- Certification
- CE
- Display Color
- Black and White
- Stopwatch and Accessories
- Waterproof Stopwatch
- Type
- Wireless Stopwatch
- Style
- Bicycle Computer Stopwatch Speedometer
- Name
- Bike Wireless Odometer Cycling Accessories
- Feature
- Waterproof, LCD Backlight, Wireless
- Big Screen
- 2.0 inches
- Battery
- CR2032 Button Cell (Can use 1 Year)
- Size
- About 4.7*6.6*2cm
- Material
- ABS shell, Tempered glass
Product Description
Product Details
Brand: ROCKBROS
Style: BC18-L21 Function type,
Battery: CR2032 Button Cell (1 Year)
Size: About 4.7*6.6*2cm
Material: ABS shell, Tempered glass
Temperature(-20 ~ 70degree)
2.0 Inch screen tempered glasses protects the screen
Backlight Easy to use it at night
Auto start/stop, use more convenient
Waterproof design Level: IP65
Replacement battery CR2032 button cell for 1 year
Function Switch Left: Confirmation Right: Switching function interface
Packaging Please check it before you pay BC18-L21
Installation Please read the instructions carefully before you install it
Pros & Cons
Pros
- IPX5 waterproof, backlight for night use
- Wireless with auto start/stop, 1-year battery
- 2.0 inch tempered glass screen clear display
- Functions: speed, odometer, stopwatch for MTB
Cons
- No GPS/navigation or touch screen
- USB 2.0 style wireless, may have interference
- Basic black/white display
- Button cell battery replacement needed yearly
Common Questions
What material is the ROCKBROS bike computer?
ABS shell with tempered glass screen.
What size is this wireless bicycle speedometer?
About 4.7x6.6x2cm, 2.0 inch big screen.
Compatible with MTB and road bikes?
Yes, wireless odometer for cycling accessories.
How to use this waterproof bike stopwatch?
CR2032 battery (1 year), auto sleep/pause, backlight.
Shipping details for ROCKBROS cycling computer?
IPX5 waterproof, CE certified, lightweight from China.
Product information last updated on April 20, 2026
