Mountain Bike Speedometer SD-558A – 28-Function Waterproof Cycling Computer with Blue Luminous LCD, Odometer, Stopwatch & Maintenance Alert

Track every ride with precision using the Mountain Bike Speedometer SD-558A, a feature-rich cycling computer built for performance and durability. Equipped with 28 powerful functions, including real-time speed, total mileage, temperature, and stopwatch, this compact digital bike odometer is your essential ride companion. Its blue luminous LCD display ensures full visibility even in low-light or night conditions, activated with a simple button press.

Crafted from high-grade engineering plastics and featuring a dual-row, four-window LCD display, the SD-558A offers seamless functionality for every rider. It supports both metric and imperial units, 12/24-hour time formats, and Celsius/Fahrenheit temperature readings. With features like speed alerts, refueling/maintenance reminders, and a calendar, you stay informed and in control throughout your journey. Designed with rainproofing and auto-standby, this speedometer delivers reliable performance in all weather.

Whether you're a mountain biker, road cyclist, or e-bike commuter, the Mountain Bike Speedometer SD-558A with Blue Luminous Display fits a wide range of bikes from 4" to 40" wheels. Easy to install, with a sensor-based system and ultra-wide operating temperature range, this speedometer is the perfect upgrade for riders who want data, visibility, and durability in one sleek package.

product description】

★ 28 major functions ★ Blue luminous ★ Shundong SD-558A code table

【Model】 SD-558A

【Material】 Engineering plastics, LCD display, electronic components, etc.
【Display】 Double row and four window display (pictured)
[Size] Product size 9 * 4.5 * 1.5CM; display size 7.3 * 1.7CM; line length is about 82CM
[Power] 1 CR2032 button battery (inclusive)
【Packing】 Color box elevator
[Annex] A copy of the original Chinese manual

【The main function】

● Dynamic display of mileage, riding time, real-time speed, travel time, current time, current date;
● Query speed, average speed, total driving time, total mileage, current temperature at any time;

● With luminous function, using high-brightness cold light source, you can check the information at night at a glance (17: 00-8: 00 in the morning, press any key to turn on the backlight, it will automatically extinguish after about 4 seconds. bright);

● With metric / imperial unit selection, suitable for different users at home and abroad;

● Vehicle refueling / maintenance tips to ensure that your car has good performance and life;

● With 12/24 hour system, Celsius / Fahrenheit temperature unit selection, perpetual calendar function, let you travel more sure;
● With a stopwatch function, allowing you to accurately grasp the game information;

● With speeding reminder function to make your driving safer;

● Wide range of application, suitable for use on 4 "-40" bicycles / electric vehicles, even motorcycles;

● Speed comparison indication, keep track of speed changes at any time;

● Using sensor, stable performance, accurate speed, ultra wide working temperature;
● Ambient temperature display, clock function;
● Automatic standby function

● Fashion exterior design, rainproof design, easy to wipe, easy to disassemble;