Z1R Ace Liner — Large / 18mm Replacement Helmet Liner for Ace Transit & Ace Transit Royale

Z1R Ace Liner — Large, 18mm | Replacement Liner for Ace Transit & Ace Transit Royale Helmets

Restore the perfect fit of your Z1R Ace Transit or Ace Transit Royale helmet with this genuine replacement liner. The 18mm padding thickness delivers a balanced combination of cushioning and impact absorption, keeping your helmet snug and stable on every ride — whether you're commuting or carving corners.

Fully interchangeable across helmet sizes 2XS–M and L–2XL, this liner lets you dial in your fit without buying a new helmet. Installation is tool-free and takes minutes, so you can get back on the road fast.

Specifications

• Brand: Z1R
• Part Number (MPN): 0134-0318
• Size: Large
• Thickness: 18mm
• Compatible Helmets: Z1R Ace Transit, Ace Transit Royale
• Interchangeable Sizes: 2XS–M and L–2XL
• Sold: Each

Key Features

• OEM-spec replacement liner — maintains original safety and ergonomic standards
• 18mm cushioning for optimal impact absorption and all-day comfort
• Interchangeable fit system for a custom, head-specific feel
• Durable, high-quality materials built for long-term use
• Tool-free installation — quick swap between rides