Fine Tuning Bike Computer

Does any one know which direction would one go on wheel size setting
to have a lower mph and distance computer is reading too high

 

You want to raise that number.

 

Thanks

 

Realizing that this post is 5 months after the fact, if accuracy from your cycle computer is important, do not use the calibration instructions' listed tire circumferences as the "working" circumference entered into your computer. Once a tire is on the wheel and the wheel is loaded by the bike and rider, the effective circumference will decrease slightly: the contact patch on the road is flat, tire wear makes it a bit smaller, and inflation pressure can affect everything. So a 700x23C tire listed as 2,096mm circumference may, over a measured distance (I use a straight 100 feet), might be closer to 2,000mm. Test your setup fully loaded and under real conditions.