MarioM
Likes Dirt
What`s a 29er ? The only bikes I know have 26 " wheels .If you mean a 29er hardtail it might be a bit awkward but should be rideable. I did both tracks on a 27.5 Anthem with 120mm fork and my mate has an old 4" Trance and he rode all of it.
The Dam would be more suitable for XC race bikes IMHO.