OSPW X for Shimano XT/XTR 1x12

The OSPW X for Shimano XT/XTR is engineered to minimize friction by 35–40% compared to the stock Shimano pulley setup. It achieves this through a massive 14-tooth upper and 18-tooth lower pulley combination, which significantly reduces the chain's articulation angle. The cage is handbuilt in Denmark using a lightweight, injection-molded carbon-fiber-reinforced polyamide, ensuring it is stiff enough for precise shifting while remaining resilient against trail impacts. The unique narrow-wide tooth profile on the pulleys ensures that chain retention is never compromised, even on the most technical descents.

Key Features

• Exceptional Power Savings: Reduces mechanical drag by up to 40%, providing a smoother pedaling experience and improved efficiency on long climbs.

• Narrow-Wide Tooth Profile: Specifically designed to mirror the Shimano 12-speed chain architecture for secure retention and silent operation.

• Customizable Tension: Features two spring tension settings, allowing you to choose between lower tension for maximum watts saved or higher tension for aggressive trail riding.

• Compact Design: Despite the oversized pulleys, this system is designed to work with your stock chain length, making installation straightforward.

• Handbuilt Ceramic Bearings: Equipped with Grade 3 Silicon Nitride balls that are 15% harder and 100% smoother than standard ceramic alternatives.

Specifications

• Compatibility: Shimano XTR M9100-SGS (Long Cage), XTR M9100-GS (Mid Cage), and XT M8100-SGS.

• Cassette Range: Optimized for the Shimano 10-51T 12-speed range.

• Bearing Options: Standard Ceramic or Coated (Coated races offer 60% longer life and a Lifetime Warranty).

• Speed: 12-speed specific.

• Discipline: Off-Road / MTB.

Typical Components Included

• Complete OSPW X for Shimano XT/XTR System.

• CeramicSpeed Pulley Oil (15ml dropper bottle).

• Official CeramicSpeed sticker sheet.