How long to you have to go biking for 45 min/day to actually see tone in your legs?

Sarah

New member
I have 2.5 weeks until school starts, and if I started now, doing 45 min/day, would I see tone within 2.5 weeks if I biked everyday? Also, what are some other benefits? Does it burn fat?

Note: I'm about 140 lbs and I'm 5'9"
 
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