Nitto's R10 rear bag support is an excellent option to keep your saddle bag upright and off your rear tire. The R10 clamps to your seat post up top and has two struts that run down and connect to your seat stays. P-Clamps are provided with the rack, so even if you don't have any braze-ons you can still use this bag support. It also comes with two different length struts so if you want you could potentially run the longer set all the way down to your rear dropout.
Made in Japan
Color- Dull Bright
Platform Dimensions- 13 x 23cm
Seatpost Clamp Diameter Range- 26.8- 27.2mm (comes with a rubber shim for smaller post size)
Provided Strut Lengths- 210mm & 350mm