MUC-OFF – CRANK PRELOAD RINGS

Precision preload adjustment for improved bottom bracket performance and longevity.

Muc-Off Crank Preload Rings are designed to precisely set preload tension on thru-spindle bottom bracket systems, eliminating side-to-side play and reducing bearing wear. By maintaining correct preload, they help extend bottom bracket bearing life while delivering a smoother, creak-free ride.

CNC-machined from high-strength 7075 aluminium and finished in durable anodised colours, these preload rings offer precise fitment, durability, and a premium finish.

Compatibility

Fits the left crank arm of mountain, gravel, and road bikes equipped with:

• SRAM 30mm spindle cranks
• Race Face 30mm spindle cranks
• Easton 30mm spindle cranks
• SRAM DUB 28.99mm spindles
• UNITE 30mm spindle cranks

Key Features

• Precision CNC-machined 7075 aluminium construction
• Threaded adapter ring for accurate fit and adjustment
• Stainless steel hardware for durability
• Enables precise bottom bracket preload adjustment
• Helps eliminate crank play and reduce bearing wear
• Contributes to quieter, smoother drivetrain performance

Why Choose Muc-Off Crank Preload Rings?

Whether you’re building a new bike or servicing an existing drivetrain, Muc-Off Crank Preload Rings deliver precise adjustment and long-term reliability. They improve bearing life, reduce unwanted noise, and ensure consistent bottom bracket performance.