Pro Circuit 304 silencer Yamaha YZ490 84 90 Moto Bike Year Pitch Part Number sizing jersey carbon adult Bike Year Pitch Part Number RM 125 92 96 520 FXRS 40 49 RM 125 00 03 520 FXRS 40 49 RM 125 97 99 520 FXRS 40 50 RM 125 04 05 520 FXRS 40 50 RM 125 80 86 520 FXRS 40 51 RM 125 88 91 520 FXRS 40 51 RM 125 06 08 520 FXRS 40 51 RM 125 87 520 FXRS 40 53 RM 250 00 520 FXRS 40 48 RM 250 89 97 520 FXRS 40 49 RM 250 99 520 FXRS 40 49 RM 250 01 03 520 FXRS 40 49 RM 250 81 88 520 FXRS 40 50 RM 250 98 520 FXRS 40 50 RM 250 04 08 520 FXRS 40 50 RMX 250 89 90 520 FXRS 40 49 RMX 250 91 01 520 FXRS 40 50 RMZ 250 07 09 520 FXRS 40 48 RMZ 250 10 12 520 FXRS 40 49 RMZ 250 13 19 520 FXRS 40 49 RMZ 450 06 07 520 FXRS 40 48 RMZ 450 05 520 FXRS 40 49 RMZ 450 08 12 520 FXRS 40 50 RMZ 450 13 17 520 FXRS 40 50 RMZ 450 18 19 520 FXRS 40 50 DR 350 ENDURO 94 99 520 FXRS 40 44 DR 350 ENDURO 91 93 520 FXRS 40 47 DR 350 TRAIL 94 95 520 FXRS 40 41 DR 350 TRAIL 90 93 520 FXRS 40 43 DR 350 TRAIL 96 98 520 FXRS 40 43 DR Z 250 04 09 520 FXRS 40 49 DR Z 400E 00 10 520 FXRS 40 47 DR Z 400S 00 10 520 FXRS 40 44 DR Z 400SM 05 10 520 FXRS 40 41 This light weight mesh sleeveless over jersey is meant to be worn over our Zero Compression Jersey The brushed aluminum body and stainless steel inlet tube and end cap gives you a silencer that looks as good as it performs Fitment: Yamaha YZ490 84 90