SRAM Ochain N Spider B1 

The SRAM Ochain N Spider B1 is a direct mount spider system that helps reduce pedal kickback, chain noise and drivetrain feedback on rough terrain. Its unique mechanism lets the chainring rotate backward, which helps separate rider input from suspension and chain forces. This gives the bike a calmer feel when braking, cornering and riding through harsh trail sections.

Key Features and Benefits:

• Spider system that decouples pedal feedback from the drivetrain: The chainring can rotate backward within the spider, which helps reduce the force that comes back through the pedals. This gives the rider a more stable platform when the suspension is working hard.
• Reduced chain noise and drivetrain turbulence: The system helps control chain movement as the bike moves over rough ground. This creates a quieter ride and helps the drivetrain feel less harsh under load.
• Improved control while braking and cornering: By reducing pedal kickback, the Ochain N helps the bike stay more settled when grip and body position matter most. This gives the rider more support on steep, rough and technical trails.
• Internally adjustable travel settings: The spider comes set at 9° and can be adjusted to 6° or 12° using the included chips. This lets the rider tune the amount of chainring movement to suit the bike, terrain and riding style.
• SRAM direct mount and 104 BCD compatibility: The spider fits SRAM 8-Bolt and SRAM 3-Bolt direct mount crank standards and works with 104 BCD chainrings. This gives it strong fitment range across SRAM-based MTB setups.
• Reworked construction with improved sealing: The latest B1 design has better impact resistance and stronger protection against dirt and contamination. This helps improve durability, with service intervals set at 100 hours for elastomer replacement and 200 hours for a full service.

The SRAM Ochain N Spider B1 helps riders build a smoother and more controlled drivetrain feel without changing their whole crank setup. Its adjustable travel system gives clear tuning options, while the direct mount design keeps behaviour consistent across cassette gear changes. For riders who want less pedal feedback and a quieter bike on rough trails, it is a focused upgrade with clear performance gains.

Choose the SRAM Ochain N Spider B1 for a more composed ride, lower drivetrain noise and better control on demanding terrain.

Specification:

• Spider system that decouples pedal feedback from the drivetrain
• Reduces chain noise and drivetrain turbulence
• Improves stability while braking and cornering
• Internally adjustable travel settings for drivetrain tuning
• Compatible with SRAM 8-Bolt and SRAM 3-Bolt direct mount standards
• 104 BCD chainring compatibility
• Upgradeable to Ochain R using the external travel adjust upgrade kit
• Re-engineered construction for improved durability and contamination resistance
• Compatibility: SRAM 8-Bolt and SRAM 3-Bolt direct mount crank standards
• Chainring compatibility: 104 BCD
• Travel settings: 9° factory setting, adjustable to 6° or 12° using included chips
• Included components: Ochain N spider, 6° travel chip, 12° travel chip, spider-to-crank mounting bolts
• Chainline compatibility: Virtual 3 mm offset when paired with SRAM XX 104 BCD T-Type chainring for CL55 compatibility
• Additional compatibility: Spacers and hardware required for CL56.5 mm DH compatibility
• Service interval: 100 hours elastomer replacement, 200 hours full service