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« on: August 14, 2020, 07:03:25 pm »
Ditto on the previous suggestion regarding gravel bikes. They seem to fill the niche between road and touring very well.
For sporty handling, frame material might be less of a consideration than frame geometry. As frame geometry varies considerably within the same model, a smaller frame (ie, 52cm) may not handle as well as a medium (56cm) or large (60).
If looking for a small frame, avoid the popular new fat 700c 29'er frames as too many compromises are made to fit the big wheels into small frames. This includes steep (74 degree) seat tubes and slack (71 degree) head tubes. For retaining the sporty feel of a road bike, frame geometries around 72-73 for seat tube, 71.5 to 72.5 for headtube with 70-75 mm bb drop and relatively short chainstays may deliver the road-bike feel.
Many of the options in this category will not accommodate front racks. It may be worth looking into bike packing bags as many are rackless or have floating racks (Arkel) that are not mounted to frame. A gravel bike packing kit with front bag, frame bag, and seat post bag typically comes in at about 30 litres, about half the volume of traditional front/rear panniers for a touring bike. This volume should support a 30 lb payload very well and by balancing the load with the heaviest load in the frame bag, should not have too much impact on handling.
The benefit of a bike packing kit is that there is no additional cost, weight and potential failure of racks, may be mounted on bikes with carbon forks and they work well on sportier frames as they do not require long chainstays for heels to clear rear panniers. Also, by removing the bags you have your sweet handling sport bike back, something you will never have with a full on touring bike.