Here is an aftermarket fender kit install on a 2015 Turbo-X
BikeSmart 700 Elmers 38-45c (Not recommended for stock Turbo X Tires)
http://www.eriksbikeshop.com/BikeSmart-Elmer-700-Fenders/PR3E4300/Product
First off, the fenders I bought should be for 38c or smaller. The BikeSmarth 700 Elmers are only 45mm wide and I always like to have a bit of overhang. If you want something for larger tires like the ones that come with the Turbo X, get a 50mm fender. I only use mine in the winter, so I matched them with my 700x38c winter tires.
I actually don't recommend these. I only picked them up because they were an open box return that I got for very cheap. These only need to last me one winter and I hope to have a different winter bike solution by next year. But I thought I'd post here in case it helps others mounting fenders to their 2015 Turbo-X
Additional mounting hardware required for Turbo X Suspension Fork:
A small right-angle bracket. I found this one at Ace Hardware. At $2.99 for 4 (I only need 2), I don't care if it rusts. I will be taking these off at the end of the winter anyway.
http://www.acehardware.com/product/index.jsp?productId=53084746
You'll also need some bolts, lock washers and nuts to mount the fenders to the angle brackets if your fender set doesn't come with them.
Angle Brackets mounted:
Since the Turbo X fork's bosses are much higher up than most for this application, you will need to cut the fender stays. These are often very thick, so be sure you have something strong enough to cut them.
Rear Fender lower mount point (existing screw). You will have to remove the wheel to mount here.
On the BikeSmart fender set, I had to bend back this black piece of metal. Or you could just drill it out and remove it all together.
Most fender kits expect a mount screw on the vertical part of your seat stay cross bar. The 2015 Turbo-X has one on the bottom (existing screw). I had to drill a hole in the fenders to mount at this point. You will have to remove the wheel to mount here.
I have a disc-brake compatible Ibera IB-RA5 rack. If you have a non-disc brake rack, mounting both fenders and the rack may require some spacers.