Front countershaft sprockets take constant punishment from torque loads, impacts and abrasive dirt. This Moose Offroad front sprocket is engineered to stay true under load and deliver consistent drivetrain performance, thanks to high-strength chromoly construction and precise OEM-spec manufacturing.
Its broached inner splines maximize spline-to-countershaft contact, helping spread forces across a larger surface area for improved fit and reduced wear. After heat treatment, it’s finished with a nickel coating to enhance corrosion resistance and lubricity—ideal for demanding off-road conditions.
Key features:
✅ Machined from high tensile strength, impact- and wear-resistant chromoly steel
✅ Broached inner splines for maximum spline contact and better force distribution
✅ Heat-treated and finished with a nickel coating for corrosion resistance and lubricity
Benefits of use:
🔹 Helps reduce deformation and premature wear in harsh riding conditions
🔹 More consistent power transfer through improved countershaft spline engagement
🔹 OEM-spec accuracy (CMM checked) supports reliable fitment and easier installation
Technical specifications:
📌 Mounting position: Front (countershaft)
📌 Chain size: 520
📌 Tooth count: 12T
📌 Material: Chromoly steel
📌 Finish: Nickel coated
📌 Vendor part number: 26-4137-12CRMO
Why choose this sprocket?
⭐ Built for durability with heat-treated chromoly steel and a corrosion-resistant coating
⭐ Quality checked to match OEM design specifications for dependable fit and performance
⭐ Great upgrade or replacement for motocross/enduro/drivetrain maintenance—just confirm clearance if sizing above stock
