skyrunner1
Superstar
How old we talking breh? You dont start out redlining either but you bum the 3.5 to 4.5 then 5.5 maybe 6.0 mph.. See how your body feel after a couple weeks, then you will see the body adjust and you can go 7.5 to 8.5 mph.. Depending on age and weight you should be good there to get the results you need, you do that for a few 45 sec to a minute rounds and you will be good to go.