Rear wheel. Models: MA 443.1 MB 2.2 R MB 2.2 RC MB 248.1 MB 248.2 MB 248.3 MB 248.4 MB 253.0 MB 253.1 MB 450 MB 500 MB 505 MB 505 E MB 505 M MB 505 MM MB 555 MB 555 E ME 443.1 ME 443.1 C ME 450 ME 450 M RM 2.0 R RM 2.1 R RM 2.2 R RM 2.2 R (BR) Lawn mower RM 248.0 RM 248.3 RM 253.0 RM 253.1 RM 253.2 RM 253.3 RMA 2.0 RT RMA 243.3 RMA 248.0 RMA 248.3 RMA 253.0