Whats a good average speed on an MTB?

[HowardSteele]

Its relevant to gearing,terain,ground cover elevation
The gearing on my Mtn bike allows me to pedal at full pace to get about 37-39km/hour .
If you are talking average,say on my daily ride 15km uphill and 15 km downhill,all of it gravle or sand going up that average is about 12km/h thats pushing the speed on the flat bits,some of the climbs cut my speed back to about 6km/h.Comming down i get a max speed of 65km/h so the average spd for the ride creeps up to about 20.
My cofortable travling speed on reasnably flat gravle is 20-25km /hour.

 

[pedalsquares]

18-20mph would probably make you a professional....the winner of the Chequamagon 40 this year averaged 19.1mph

http://www.peaktiming.com/2005Chequamegon/divisionresults.asp?eventid=11000000&divid=110000

All I could muster was 11.1...

Depends on the terrain. I'm good for 17-18mph on my regular 50 mile run, which is mostly gravel and hardpack and pretty flat. I don't realy perceive this as being much of a feat. I'm nowhere near exhausted when I'm done. I'm sure I could get at least 1-2 mph more. I imagine quite a few MTBers could do it as well.

 

[john74]

i must be really unfit i only average 15mph on tarmac with semi slicks.