is this kit to convert the front hub to a...
is this kit to convert the front hub to a 20mm thru ?
will it work to convert a 15mm front to a 20mm front?
Pretty sure that this is just to convert a 9mm to a 10mm thru-axle. If you wanted to swap out your 15mm to a 20mm, it's a different part but is the same style. I've done it with my DT440 hub, and all you have to do is buy the new cones. Takes like 2 seconds to swap em out too. This is what you need: http://www.chainreactioncycles.com/us/en/dt-swiss-conversion-kit-qr-to-20mm-front/rp-prod23967