Hi edu. If you want to ride the events organised by and for members of this forum a bike line ktm 640 adventure is great. OTR rides are okay on such a bike as well. Just a bit more demanding on the body.

if you want too ride enduro races, a true racer like a 300 2stroke or a 450 4stroke is the better option.
All OTR and enduro routes go true a lot of farm fields. There you need power to get thru. Off course, the les weight, the easier the tecnical stuff.
If you have a trailer or a bus. And you want too all of the above. I'd go with a 450 ore 500 4 stroke.
To be sure, you could just go and visit an OTR and/or enduro event as an spectator.
Good luck.
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