The Early Yamaha AT Trail Family
Yamaha introduced the 125cc AT-1 in 1969 as part of the trail-model expansion that followed the DT-1. Later AT2 and AT3 designations continued the family, but model names and year labels must be matched carefully. PartsNMore catalog data for the AT group spans early AT-family years and is centered on AT3-tagged service applications; it should not be read as proof that every part fits every AT1, AT2 and AT3.
Identify the complete model designation from reliable motorcycle records, then compare the product's stated year range and component details. A shared application with CT, DT or MX motorcycles applies only to that individual part.