JT Rear Sprockets, 42 (stock) and 45 Tooth for 950-990 Adventure, 525 chain.
JT Sprockets are made from the latest generation of computer design and control metal cutting equipment for maximum durability.
JT rear sprockets are made from the finest C45 high carbon steel, 7075 aluminum, or new titanal alloy.
Lightweight titanal sprockets combine the ultimate strength of titanium with aluminum 7075-T6 providing superior hardness and strength.
All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards possible quality standards.