All of my miles are on-road...no trainer miles. Over the past 10 years, I averaged 3500-4000+ per year, depending on weather / time,etc. My wife is the Prez of the Berks County Bike Club ( www.berksbicycle.com) so she sometimes pushes me to do more and faster miles. But after riding road for past 35 years, I am not as fast and only do shorter rides these days...tho I did a century this year for first time in about 10 years ( used to do them often) Happy Riding!