Originally Posted by webist
Haven't quite reached 30 mph yet.
My riding buddy and I were riding side by side on Saturday after he changed the battery out in his computer. For a good four miles I was doing 16mph and he was doing 23. Yet, we were able to pace each other evenly and maintain conversation. After a quick stop at the LBS he slowed down a good deal.
How the hell did he ever get that far off? Most computers default to a bike with 700 x 23 tires. If he set it for 700 x 25 the discrepancy would not be anywhere close to 7 mph.