REAR SPROCKET JTR2012.42 JT

Part No. SR2012-42.S.JT (oro2u.com)
REAR SPROCKET STEEL JTR2012.42 42 TEETH CHAIN TYPE 520
 

Steel Sprockets
JT Steel Sprockets are manufactured using only the finest grade of C49 high carbon steel for the rear sprockets, and SCM420 chromoly steel alloy for the front sprockets. The JT Steel Sprockets range now contains over 2,500 parts for all motorcycles and ATVs

Fitment:

TRIUMPH
865 America LT (OEM 520 Chain) 2014-2017
865 Speedmaster 2016-2017