Try this mob: http://www.xmiplay.com/ProductDetails1683
@tom. and I have run the 29er version ours for the last 18 months on our El Mariachis off and on. Aeons also bought one at the same time as us.
We’ve ridden them fully loaded on the Kiwi Brevet (my bike was 26kg all loaded up; I weigh 75kg with riding gear). And I’ve ridden some pretty techy singletrack in Rotorua and around (big roots, brake bumps and small drops). I never felt like it wasn’t up to the task.
But it has some quirks, which is unsurprising seen that it is a fraction of the cost of the big brand offerings. Namely, it has a proprietary 15mm thru bolt rather than the now standard Maxle-type thru axle (the nut is NOT incorporated into the fork end). Tom found his came undone and I think he replaced it with a DT Swiss RWS thru axle IIRC. I found mine came loose once but have just done it up quite tightly – I’ll look to wrap the thread in Teflon plumbers tape if it becomes an issue for me. The other quirk again relates to the fork ends. Again unlike the pricier options, it lacks the internal flange which the wheel can slot into and holds it in position for the bolt to be inserted. Because of this its a bit of a prick to align the wheel in the fork and when the bike is loaded up it is all but impossible to do this without lying the bike on its side.
Lastly Larfinboy and Boyracer have recently bought them too. On the negative XMIPlay shipped theirs without the thru bolt (WTF?!), so if you do order from them make sure that they include the bolt!! On the positive side, Ben says that has clearance for a 3.0" tyre.