Restore your touring-ready 75mm Telemark setup with this used Black Diamond O1 Heel Piece, the correct replacement part for BD’s O1 binding. Available in Smoke or Black cosmetic variations—both perform identically and differ only in appearance. Whether you’re maintaining an older backcountry rig or completing an O1 setup, this heel piece keeps your binding system fully functional.

🔧 Key Features

• Genuine Black Diamond O1 heel piece — designed specifically for the O1 touring binding
• Two cosmetic variations — Smoke or Black (no performance difference)
• Built for backcountry use — part of BD’s touring-focused 75mm platform
• Durable construction — reliable for long-term mountain travel
• Used condition — fully functional
• Essential for restoring or completing older 75mm Telemark touring setups

🏔 Why This Matters 

The Black Diamond O1 stood out in BD’s Telemark lineup as the touring-specific 75mm option, thanks to its free-pivot design. A lot of skiers built their backcountry setups around this binding because it offered a major leap forward in efficiency for climbing and long approaches. With BD no longer producing 75mm equipment, original replacement parts like this heel piece are becoming increasingly rare.

I’ve been helping Telemark skiers maintain their gear for decades, and keeping these legacy touring systems alive is a big part of that mission. Whether you're keeping a trusted backcountry setup going or bringing an old O1 rig back into circulation, this heel piece is a key component for staying on snow.

📐 Compatibility

• Fits Black Diamond O1 bindings
• Available in Smoke or Black (cosmetic difference only)

🔍 Condition

• Used — fully functional; cosmetic wear may be present