Thankyou spev, really helpful!!
Didn't expect it could fit 2.4" on 23mm rims (well, didn't expect a 2.4" on 23mm would be just 58mm)
In the meanwhile my size went sold out and I found a great deal on a Fargo2 second hand so...
but I will keep am eye on next year frame, it's not hard to sell a Fargo... 
By the way: when Genesis is expected to show off 2017 vagabond?!?