I agree with this comment. I understand that a 29er makes sense for larger riders in less technical terrain. A 29er will be longer with a higher centre of gravity and heavier wheels than a 26" mountain bike.

If you are going to sell, I wonder if Ebay would be the best venue due to the unusual size, you could also put in a high reserve since you probably only want to sell if the price is right. Would people in Japan have any interest in this brand? maybe not.