My dads on a KTM 525. He's 57. Uncle number 1 is on a Xr650L. He is 62. Uncle number 2 is on a KTM 540 And a KTM 990. Uncle number 3 is On a XR650R. Hes 64. My grandpaw stopped riding when he was 83 due to back surgery. He was on a KTM 360 2-stroke when he finished off. You are never to old to ride.