Tobefore Mechanical Bike Speedometer for 26-29 in Wheels KM/H,Not MPH

Tobefore Mechanical Bike Speedometer for 26-29 in Wheels KM/H,Not MPH

• Before You Buy – Speed Displayed in KM/H, Not MPH<br> This mechanical speedometer shows kilometers per hour (km/h) on its 0-60 outer scale. No miles per hour (mph) on this dial. For US riders: 30 km/h equals 18.6 mph, 48 km/h equals 30 mph. If you need a pure mph speedometer, please do not buy this item.
• Outer Dial – Speed 0-60 km/h with Color Warning Zones<br> The outer dial shows your current riding speed in km/h. Green zone (0-42 km/h) for casual daily commuting. Red zone (42-60 km/h) as high speed warning. Glance down and instantly know your speed range.
• Inner Dial – Wheel Roll Distance in Meters Per Minute (0-500)<br> The inner dial shows how many meters your front wheel rolls per minute. At 15 km/h, your wheel rolls about 250 meters per minute. At 30 km/h, it rolls about 500 meters per minute. Above 30 km/h, the inner needle stays past 500. This is normal, not a defect. Think of it as a wheel speed meter.
• Plastic Gear – Designed for Light Use <br> The internal drive gear is made of durable plastic, not metal. Designed for: casual weekend rides under 5 miles per trip, learning to ride, stationary exercise bikes, and vintage bicycle builds. Not for daily off-road, mountain trails, high speed long distance, or frequent back pedaling.
• Reflectors, No Battery, and Install Tips<br> Includes front white and rear red reflectors . No battery needed, pure mechanical drive. ABS and aluminum housing offers basic weather resistance for light rain and vibration.