How to install a Rohloff Speedhub on a Surly Troll with rear facing horizontal fork ends I have a Surly Troll with rear facing horizontal fork ends. 1. Is there a recommended way of installing a Rohloff Speedhub 14 on the Surly Troll? These answers mention tugnuts and washers, but perhaps Rohloff have their own adapter for this type of bicycle / fork end. 2. Or perhaps the Surly Troll with these fork ends wasn't made for an IGH? Pictures of the fork ends (this is a pre 2017 Surly Troll): ![enter image description here]( ![enter image description here](

The derailleur arm corrects the chain tension with its spring-loaded mechanism. With an IGH you'll need to adjust the tension by moving the wheel as well as the brake to keep it on the disk. In your configuration the axle sits tight against the end of the slot and chain-pull will not misalign the wheel.

With an IGH the axle is only anchored through compression of the QR on the dropouts which may easily be too slight and allow the axle slide forward on a very hard pedal push. A tugnut will avoid that situation.

Edit: Reading into the manual, I just found that it is possible to use the Rohloff in the same manner as a bike with a rear derailleur. You just need their own chain tensionner in place of the RD. It eliminates the need for moving the wheel and the brake. Chain tension is adjusted once and for all with the axle sitting in the full forward position of the slot.