EA90X (which doesn't seem to exist) or EC90X? If the latter, the change could just be down to the ~200g weight saving over the stock fork. Why not ask the seller a: why they changed the fork and b: whether they still have the original fork.
Based on prejudice rather than data, I think I'd avoid an aluminium/carbon hybrid for off road use (or any use, but off road makes it worse) as the one problem which doesn't seem to be completely solved in bicycle manufacture is glueing plastic to metal.
My bad - you're right,the fork is the EC not the non-existent EA. I have spoken to the vendor about it, but I was hoping for some independent info as he's hardly going to tell me that every second one out of the factory snapped. I'm an absolute noob when it comes to skinny wheels, dirt and gears so just looking to inform myself as much as possible before leaping in head-first.
I'm not overly worried about the bonding of two different substrates as the bike won't be getting thrashed around trails, I've got dedicated mtbs for that. Yeti -for one- have been doing it for years without any major recalls and those things usually cop much more abuse than this will.
My bad - you're right,the fork is the EC not the non-existent EA. I have spoken to the vendor about it, but I was hoping for some independent info as he's hardly going to tell me that every second one out of the factory snapped. I'm an absolute noob when it comes to skinny wheels, dirt and gears so just looking to inform myself as much as possible before leaping in head-first.
I'm not overly worried about the bonding of two different substrates as the bike won't be getting thrashed around trails, I've got dedicated mtbs for that. Yeti -for one- have been doing it for years without any major recalls and those things usually cop much more abuse than this will.