The latest Troll has the Gnot boost drop outs. This means a couple of things... There are spacers needed for 135mm hubs, these are supplied with the frame, but taking the skewer out to remove the wheel means they'll likely fall off the axle. A QR is also not sufficient to hold the wheel secure if you use Rohloff or single speed, or if you move the wheel back to get a bit of extra wheel base. You will need tugnutts, both sides because the drop out slot is 12mm and there isn't enough bite on the frame by the QR. If you are using a 135mm hub with the spacers and tugnutts you need a tandem skewer, because a standard skewer isn't long enough. With Tugnutts the wheel goes back into the same place every time with my 135mm Rohloff.
But... if you are running a derailleur likely you will slam the wheel forward so all of the issues with alignment etc go away as the wheel will slip back to the same place every time. If you are getting new wheels get 12mm boost hubs and you won't have any issues, the other advantage with boost hubs is that there is a slot so the wheel can drop down out of the dropouts when the axle is removed, instead of being slid all the way back.
Oh yeah, we don't have any issues getting wheels off with fenders and ETs on either the old 135mm drop outs or the new Gnot boost with 135mm and adapters.
Last edited by Trevtassie; 09-29-19 at 11:21 PM.