Hey Atl Biker, Like WG said, those aren't bad numbers. I spent the last few years riding in elevations above 4500' and now that I'm at sea level my numbers have increased dramatically. But a 10% grade is nothing to snicker at. I spend a lot of time on my MTB and I'm 63 years, 150# but usually carry a 40# back pack because it's all about staying in shape for me and I like to geocache (both hiding and finding). It gives me an excuse to explore new areas.And yes, I huff and puff a lot on climbs, but that's what it's all about. I average 16MPH in average terrain now. In the higher elevations, I averaged closer to 13 MPH and was quite pleased with myself.