SPI WB000658 Defender Hardweld Snowmobile Ski Wearbar Runners for Yamaha

The SPI WB000658 Defender Hardweld Wearbar is a premium aftermarket ski runner designed for Yamaha snowmobiles. Built with a 7/16 in. carbon steel host bar featuring a flat-top profile, this wearbar prevents bar roll during aggressive cornering, delivering confident handling on the trail.

SPI's Defender design sets itself apart with diamond-shaped carbide segments set deeper into the host bar than competing designs. This deeper pocket placement creates a larger cross-sectional contact area and significantly improves adhesion, making the carbides far more resistant to side-impact failure from rocks and gravel.

Key Features:

• YG13 Tungsten Carbide — provides superior tensile strength for extreme durability, reduces chipping, and extends service life
• 90-degree carbide-to-pocket angle — creates larger cross sections for improved retention versus shallow-mount competitor designs
• 1 in. carbide segments — allow the ski to flex naturally without compromising carbide adhesion
• Flat-top 7/16 in. carbon steel host bar — prevents bar roll during hard cornering
• Hardweld on contact area — adds depth to the host bar surface for increased longevity
• Chamfered ends — reduce snagging when backing up or unloading
• Extended studs — compatible with ski skins
• All necessary Nyloc fastening nuts included — no additional hardware required
• Black rust-preventative finish — applied to all carbides and wearbar surfaces
• Less damaging to concrete and asphalt — safer for mixed-surface riding
• Engineered and test-fitted for precise, easy installation

The SPI WB000658 Defender Hardweld Wearbar is sold as a pair and includes all required hardware for a straightforward installation on compatible Yamaha snowmobile skis.