DT Swiss - FR 571 27.5" RimsDT SWISS FR 571 27. 5" RIMS Rude as hell. Dent rocks, break roots, be rude as hell to the trails. The FR 571 has all the features to defeat the black snake and crush canyon gaps in the desert. Attack the tracks in a 29" or 27. 5" setup, rider's choice to go fully rude or business in the front, rude in the back. No need to be polite, the included flat hex brass nipples are resistant enough for rough handling. Get the FR 571 and be rude as hell.