TM Designworks Australia Quad Roller PLR 211 Black

ATV PowerLip Chain Roller. 
Model specific single roller. (Not a pair)
Lower location. 

Suitable for all types of riding.
Friction reducing additives and UV protection to eliminate color fade.
Sealed bearing is ABEC & 9002 ISO rated for superior rolling and long life.
New specific fit hardware is included.
Used by championship winning race teams worldwide.
Made in the USA.

Fitment From parts Finder:
YAMAHA (09-26) YFZ 450 R,X,SE Models.   Lower

Also Fits models Below:
YAMAHA (04-05) YFZ 450  Lower 
YAMAHA (06-09) & (12-13) YFZ 450 Upper or Lower 

DBR TMD Powerlip Roller To Suit:

ATC 250R (81-86) Upper or Lower Mount,

Predator 500 and Outlaw Upper or Lower Mount,

TRX 250R (86-89) Upper Mount, TRX 250X/300EX/400EX Lower Mount,

YFZ 450 (04-12) all models Lower Mount,

YFZ 450 (06-12) Upper, 09-12 ...