Sachs model 122 Super, 123 Bore 47mm stroke 40mm 70cc 4.2 cu Inch
Model 117, 119, 120 Bore 47mm stroke 35mm 3.7 cu inch
Model 120 super Bore 49mm stroke 36mm 68cc 4.1 Cu inch
Model 111, 115, bore 44mm stroke 34mm 3.2 cu inch
Model 112, 113, 114 Bore 45mm stroke 32mm 3.1 cu inch
Model 116 bore 45mm stroke 35mm 3.4 cu inch
The lightest versions of all models are usually used for airplane engines...