ZETA Rear Brake Fluid Reservoir Cap ZE86-840X F6440 Aluminium Black ZETA Black ZETA rear brake fluid reservoir cap F6440. See if it fits your bike. Beta RR 125 LC 4T Enduro Beta RR 250 2T Enduro Beta Xtrainer 250 Beta Xtrainer 300 Husqvarna FE 350 Husqvarna FR 450 Rally Husqvarna TC 250 Husqvarna TC 511 Husqvarna TE 150 Husqvarna TE 300 Husqvarna TE 511 Husqvarna TX 125