Echowell Bicycle Computer Speed Indicator Meter U9 Arm Warmer Its cobblestone shape

Its cobblestone shape

170mm crank arm

Cable Housing Volume Box Gear SP 4mm

The Sentinel™ 250 complies with FDA standard for lasers

Super bright daytime flash mode

Echowell Bicycle Computer Speed Indicator Meter U9 Arm Warmer Its cobblestone shape9 Functions Including Current and Average Speed Total and Trip Distance Riding Time and Speed Pacer Includes a clock with 12 and 24 hour functions and Kilometers or Miles options Has an auto scan, C02 savings, and is water protected The Echowell U9 Computer has the 9 most important functions a rider wood need. The advantage of Echowell products is high reliability and stability. Our product quality comes from the strict control of design, input and