Description
Master Your Metrics: 28-Function Professional Cycling Computer Odometer
Stop guessing your cycling pace and mileage milestones. The CycleAddons waterproof mountain bike speedometer delivers professional-grade telemetry straight to your handlebars. Powered by the highly accurate Shundong SD-558A platform, this computer utilizes a double-row, four-window layout to show your current speed, trip distances, and safety alerts simultaneously. With its sleek rainproof construction, it’s the perfect training partner for everything from casual city commutes to intense cross-country races.


Why Smart Cyclists Choose the SD-558A Dashboard:
No more fumbling in the dark. Between 17:00 and 8:00 AM, pressing any key instantly activates a soothing, high-brightness blue backlight. It illuminates the entire screen for 4 seconds before cleanly fading out to maximize battery life.
Protect your investment. The computer features built-in vehicle refueling and maintenance reminders to keep your bike in peak condition, alongside an integrated speeding alarm to ensure you stay within safe pacing limits.
Technical Specifications & Interface Standards:
| Hardware Property | Product Standard |
|---|---|
| Chassis Core Material | Premium Engineering Plastics & Electronic Components |
| Display Architecture | Double-Row / Four-Window LCD Panel |
| Physical Dimensions | Device: 9 × 4.5 × 1.5 CM | Screen Size: 7.3 × 1.7 CM |
| Wired Lead Length | Heavy-Duty Connecting Cable (Approx. 82 CM) |
| Power Source | 1 × CR2032 Button Cell Battery (Included) |
| Measurement Metrics | Metric/Imperial Units, Celsius/Fahrenheit, 12/24 Hour Clock |

💡 Multi-Vehicle Calibration & Setup Guide:
- Ultra-Wide Frame Compatibility: Thanks to the highly versatile software algorithm, this tracking computer fits onto tire sizes ranging completely from 4″ to 40″. It works flawlessly on standard mountain bikes, road frames, electric scooters, and even lightweight motorcycles.
- Automatic Standby Feature: To conserve your CR2032 power cell, the unit automatically enters sleep mode if no wheel rotation signal is captured after a few minutes, instantly waking back up the second your bike moves.
- Wired Signal Integrity: The 82 CM heavy-duty wire ensures zero radio frequency interference or dropped metrics, a common issue with cheap wireless configurations near high-power e-bike motors.
Package Includes:
- 1 × CycleAddons Premium Shundong SD-558A Speedometer Console
- 1 × Universal Bar-Mount Bracket with Wired Sensing Probe
- 1 × High-Strength Spoke Magnet Attachment
- 1 × CR2032 Button Cell Battery
- 1 × Comprehensive Setup & Calibration User Manual
Frequently Asked Questions (FAQ):
Q: Can I wash my bicycle with the speedometer attached?
Yes! The housing is completely rainproof and handles heavy storms or quick splashes with ease. For general cleaning, simply wipe it down with a damp cloth. We recommend popping the main console off its quick-release bracket if you use high-pressure power washers on your bike.
Q: How does the speed comparison feature work?
The screen features a real-time arrow indicator that continuously compares your current velocity against your trip’s calculated average speed. It shows a prompt letting you know whether you are pushing past your average baseline or dropping below your training target pace.
TRACK YOUR PERFORMANCE AND DOCK A CYCLING DASHBOARD TODAY! 🚲
Don’t let your training sessions go unmeasured. Gain precision data over every mile, analyze your speed changes instantly, and cruise comfortably through pitch-black trails with high-brightness blue luminance tracking.
💥 SPECIAL LAUNCH PROMO: 50% OFF + FAST TRACKED SHIPPING INCLUDED
Confirm your tire size falls within the 4″ to 40″ spectrum, load the pre-included CR2032 cell, and click Add To Cart now to accurately elevate your cycling diagnostics!














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