JT SPROCKETS Sprocket - Rear - Triumph - 43-Tooth JTR1800.43

A properly sized rear sprocket is fundamental to your bike's power delivery and acceleration characteristics—choose the wrong tooth count and you'll sacrifice either top-end speed or low-end responsiveness. The JT Sprockets 43-tooth rear sprocket for Triumph models delivers the durability and precision engineering demanded by riders who refuse compromise, whether you're optimizing for track performance or refining your street setup.

JT's computer-aided design methodology ensures each tooth profile is optimized for chain engagement and longevity, while the high-carbon C45 steel construction—combined with heat treatment and bead blasting—creates a sprocket that handles sustained acceleration and load cycles without premature wear or failure.

• Fitment: Triumph (model-specific)
• Tooth Count: 43
• Material: C45 high-carbon steel
• Manufacturing: Computer-designed
• Surface Treatment: Heat-treated, bead-blasted
• Installation: Bolt-on replacement
• Design Focus: Strength-to-weight optimization
• Quality Standard: Exceeds OEM specs
• MPN: JTR1800.43