TT-R/DT-WR/3ET/YZ 51T

【HARDY HS900451 TT-R/DT-WR/3ET/YZ 51T Rough & Road】
The rear sprocket is made from A7075, which boasts the highest rigidity among aluminum alloys, and has undergone T6 treatment and hard anodizing.
The use of A7075 provides excellent durability and wear resistance, while also achieving a lighter weight.
The mud groove, which efficiently expels mud, and HARDY's unique lightning holes, chamfered edges, and self-cleaning mechanism, which remove mud from the sprocket surface, truly demonstrate their value in muddy races where mud build-up is anticipated.
51T compatible with: TT250R
TT250Raid (520 conversion)
DT230LANZA (520 conversion)
DT200WR
DT200R (520 conversion) '88~
DT125R (520 conversion) '88~
YZ125 '87~'98
YZ250 '85~'98
YZ/WR400F '98
*Images are for illustration purposes only. Product design and specifications are subject to change without notice. Thank you for your understanding.