The Dirt Tricks KTM-13 Front Countershaft Sprocket is a 13-tooth, tool-steel sprocket designed for KTM motorcycles using a 520 chain. Developed by Dirt Tricks president and engineer Greg Burns, this sprocket reflects extensive experience with aerospace steels, advanced heat treatments, and FEA stress analysis. It is engineered to provide dependable performance for demanding off-road riding while maintaining a lightweight, minimalist design.
Built for durability, the Dirt Tricks KTM-13 is substantially stronger than conventional stainless-steel sprockets and is designed to withstand the loads associated with hard riding. Its precision-manufactured tooth profile supports smooth chain engagement and reliable power transfer, helping riders maintain consistent drivetrain performance in challenging conditions. The 13-tooth configuration can also influence acceleration and final-drive gearing when used as part of a properly matched motorcycle setup.
Fitment: This front countershaft sprocket is intended for compatible KTM motorcycles equipped with a 520 chain and the corresponding countershaft spline pattern. Verify the motorcycle model, year, original equipment sprocket specifications, and chain size before installation. The manufacturer part number is KTM-13, and the vendor part number is 254-13013. Dirt Tricks supports its rear sprocket products with a one-year wear guarantee; refer to the manufacturer’s current warranty terms for applicable coverage.
Features:
- 13-tooth front countershaft sprocket for motorcycles using a 520 chain
- Manufactured from durable tool steel for demanding off-road use
- Designed using aerospace steel knowledge, advanced heat treatments, and FEA stress analysis
- Minimalist design balances strength, durability, and reduced weight
- Engineered for smooth chain engagement and reliable power transfer
- Compatible with select KTM motorcycles using the matching countershaft spline pattern
- Brand: Dirt Tricks
- Manufacturer part number: KTM-13
- Vendor part number: 254-13013