This is a nice loop from Tucson up to Redington down to Benson and back to Tucson. The dirt road from Benson to Redington is street bike do-able and Redington Road is sort of street bike do-able if you take it easy on the southern end. Someone on any street bike (Goldwing, ST, Bandit, etc.) could easily run from Benson up to Redington and then on up to San Manuel (or, obviously, the reverse as well). The whole loop is definitely noob friendly and quite easy on any DS.