Chase broke his left arm after he got hit by a car. So I reconfigured his remaining ride for right hander use. Top shifter and top brake lever is for the front dérailleur and front brake, bottom shifter (thumb) and bottom brake lever does rear brake and rear dérailleur. These components I had on the shelf, slowly accumulating to build my Pugsley which is still months and months away - if it ever gets built. Figured this was a good interim solution.