My son is doing for a school project tests to establish the fisical difference between 2 sizes. He had a lot of volunteers locally to ride the same route with the two sizes. Now that he needs the results it is all excuses. Anybody who has some stats on rides who is willing to share it - please contact me on adriaan.lategan@afrimat.co.za What is needed: dist, ave spd, time, ave hr, max hr, and calouries.
