>>1070866>I'm pretty dam sure Lycra only adds 10s of seconds even at sprinting speeds. You only Need it if you are pro.its a pretty significant difference in speed but also in comfort (NO CHAFING) and also in body temp regulations, with mtb baggies, wind has the comodity of going under the pant sleeves and cooling you down when you dont want it, with lycra you can go short on temperatures when you would go 3/4 or long sleeve with baggies.
with higher speeds on a road bike, it isnt even comparable, you can be almost 15khm faster just by using proper clothes insted of fredding it out with baggies.