SPI WB000476 Defender Hardweld Ski Runner for Ski-Doo - Black

The SPI Defender Hardweld Runner (WB000476) is a premium snowmobile ski runner engineered for Ski-Doo sleds, delivering superior carbide retention, aggressive handling precision, and long-lasting durability in all trail conditions. Finished in a black rust-preventative coating, this wearbar is built to outperform the competition from the ground up.

Host Bar Construction:

• 7/16 in. carbon steel host bar with a flat top profile prevents bar roll during aggressive cornering
• Hardweld applied directly to the contact area of the host bar adds depth to the wear surface, extending overall longevity
• Less damaging to concrete and asphalt surfaces compared to standard runners

Carbide Technology:

• Carbides manufactured from YG13 tungsten for maximum tensile strength, extreme hardness, and resistance to chipping
• Diamond-shaped carbides set deeper into the host bar pocket for greater surface contact adhesion — far more than shallow-mount competitor designs
• 90-degree carbide angle into the pocket creates significantly larger cross-sections for superior side-impact resistance against rocks and gravel
• 1 in. carbide segments allow natural ski flex without compromising carbide adhesion

Design & Installation Features:

• Engineered and test-fitted for a precise, easy installation on compatible Ski-Doo ski models
• Chamfered ends reduce catching when backing up or unloading the sled
• Extended studs accommodate ski skins
• All necessary nyloc fastening nuts included
• All carbides and wearbars finished in black rust-preventative coating

The SPI Defender Hardweld Runner is the choice for riders who demand more from their ski carbides — whether hammering hardpack trails or navigating mixed terrain.