This is not really taking the original discussion forward, but 20 minutes vs. 13 minutes is quite a difference when calculating average speed.
I probably made a mistake here, but using "google", distance from Victoria Park to Clerkenwell is 3.2 miles, 5.14km. If it takes 13 minutes, the average speed is about ~24km/h. To make the same distance in 20 minutes, you can drop your average speed down to ~15.5km/h. And that is not so "high speed" for cycling.
Funny fact, I put "average biking speed" to "google" and it told me that: For cyclists in Copenhagen, the average cycling speed is 15.5 km/h.
So I guess google uses 15.5km/h to calculate the time used to move the distance by bike.
I probably made a mistake here, but using "google", distance from Victoria Park to Clerkenwell is 3.2 miles, 5.14km. If it takes 13 minutes, the average speed is about ~24km/h. To make the same distance in 20 minutes, you can drop your average speed down to ~15.5km/h. And that is not so "high speed" for cycling.
Funny fact, I put "average biking speed" to "google" and it told me that: For cyclists in Copenhagen, the average cycling speed is 15.5 km/h.
So I guess google uses 15.5km/h to calculate the time used to move the distance by bike.