Originally Posted by yooper_drz
Depends on your definition of "rideable"!
If you don't mind the occasional patch of snow and ice between the endless stretches of mud, then sometimes as early as late March. Usually though, things start to dry up enough for some pretty good riding in April. Still plenty of mud and maybe a bit of snow, but passable.
Best part about riding then is there are no bugs yet!
Thanks for the heads up. I'm glad I put the D606 on the KLR.