Chain idler set T-Cycle for Metaphysics

TerraCycle Over/Under Idler Kit for MetaBike Metaphysics

Contents

• 1x TerraCycle Over/Under Idler set (including Power and Return idler)
• 1x Bespoke MetaBike mounting bracket 
• 1x High-tensile axle bolt
• 1x Stainless steel chain keeper
  

Description

Significantly improve the chain management of your MetaBike Metaphysics with this premium idler kit from TerraCycle. Standard recumbent idlers often use toothless plastic rollers that cause friction and power loss, as the chain gradually "mills" notches into the material. The TerraCycle system revolutionises your drivetrain by using high-precision CNC-machined cogs that match the specific profile of your chain. This ensures a smoother run, eliminates the "bouncing" effect common with hard plastic rollers, and provides near-silent operation.

The Over/Under configuration is specifically tailored to the MetaBike's frame geometry, ensuring an optimal chain line for both the drive and return paths. Because recumbent bikes rely on much longer chains than upright bicycles, high-quality management components are essential. With this kit, the power transfer from the bearing through the mounting body to the cog is entirely metal-on-metal, ensuring maximum rigidity and preventing the failures common in plastic-body idlers. Hand-assembled in the bike-friendly city of Portland, Oregon, this set is the ultimate upgrade for any Metaphysics rider seeking long-term reliability and efficiency.

Specifications & Versions

• ELITE Version: Features a CNC-machined 6AI/4V Titanium cog and Ceramic Hybrid precision bearings. This version offers the lowest friction and maximum service life. It is highly recommended for strong riders, high-mileage commuters, and those seeking the pinnacle of performance.
• SPORT Version: Features a high-quality 7075 Aluminium cog and ABEC7 precision bearings. While offering a long service life and excellent performance, the aluminium cog will show signs of wear sooner than the titanium alternative under heavy use.
• Construction: The idler is fully dismantlable, allowing for easy bearing service or individual part replacement, ensuring your investment lasts for decades.
• Material: Side plates and specific MetaBike bracket are crafted from 7075 aluminium, CNC-machined, and black anodised for superior corrosion resistance.
• Sustainability: High-grade stainless steel hardware and 18/8 steel chain keepers ensure durability in all weather conditions.

Why choose the Titanium (ELITE) Cog?

For frequent riders or those with high power output, we generally recommend the Titanium cog. Unlike aluminium, which will eventually show wear from the chain’s rollers after several thousand miles, titanium provides extreme durability. Especially in high-load drive systems, the ELITE version ensures that your chain management remains as efficient as it was on day one, saving you money on replacement parts in the long run.