SENIX CHAINRING COVERS 4PC
The Seamless Finishing Touch for your Crankset.
The Senicx Chainring Covers are the essential final component for riders installing Senicx 110x4 BCD chainrings onto modern Shimano cranksets. While the chainrings provide the performance, these covers provide the integration. When you move away from original Shimano rings, there is often a visible "step" or a gap where the crank arm meets the chainring. This 4-piece set is specifically designed to bridge that gap, creating a smooth, aerodynamic transition that mimics the factory-integrated look of a complete Dura-Ace, Ultegra, or 105 system.
Beyond the aesthetics, these covers serve a structural purpose. They act as specialised washers that sit between the chainring bolts and the crank arm, ensuring that clamping pressure is distributed evenly across the 4-bolt interface. This helps to eliminate creaks and prevents the bolts from marring the finish of your premium Shimano crank arms. Each set is model-specific, ensuring that the contours of the covers perfectly match the unique "shoulders" of the R7100, R8100, or R9200 series.
Key Features
Model-Specific Integration: Available in versions tailored specifically for 105 (R7100), Ultegra (R8100), and Dura-Ace (R9200) to ensure a flush, "gap-free" fit.
Aero-Optimised Profile: Smoothens the transition between the crank arm and the chainring,reducing wind turbulence in a key rotational area of the bike.
CNC-Machined 7075-T6 Aluminium: Crafted from the same high-grade alloy as the chainrings for maximum durability and a perfect colour match.
Structural Bolt Support: Provides a solid interface for the chainring bolts,standardising clamping force and reducing the risk of bolts loosening over time.
Hard-Anodised Black Finish: Matches the Senicx "Black Sand" finish perfectly, providing a stealthy, professional look that won't flake or peel.
4-Piece Comprehensive Set: Includes all four covers required to complete the look on a standard 4-arm Shimano asymmetric spider.
Technical Specifications
| Feature | Specification |
| Material | 7075-T6 CNC Aluminium |
| Quantity | 4-Piece Set |
| Compatibility | Shimano R7100 / R8100 / R9200 Crank Arms |
| Interface | Asymmetric 110 BCD 4-Bolt |
| Finish | Anodised Matte Black |
| Inclusions | 4 x Contoured Covers (Bolts typically sold separately) |
✅ Why This IS For You
Detail-Oriented Builders: If you hate the "unfinished" look of aftermarket chainrings and want your bike to look like it came with a factory-integrated drivetrain.
Aerodynamic Gain-Seekers: Perfect for those looking to minimise drag by smoothing out the sharp edges and recessed bolt holes on the crank spider.
Shimano 12-Speed Owners: Specifically designed for the latest generation of Shimano cranks where the crank-arm-to-ring transition is most prominent.
❌ Why This May NOT be for you
Older Generation Cranks: These are designed for the latest 12-speed profiles; they will not correctly align with the shoulders of R8000, R9100, or 6800 series cranks.
Power Meter Users: If you are using a crank-spider-based power meter (like some Sigeyi or Magene units), the power meter spider often replaces the need for these decorative covers.
BFC Pro Tip
The Senicx Chainring Covers are model-specific for a reason—the "shoulder" shape on a 105 crank is different from an Ultegra or Dura-Ace crank. Double-check your crank arm model (stamped on the inside of the arm near the pedal thread) to ensure you have the matching set. When installing, we recommend a tiny dab of waterproof grease on the back of the covers where they touch the crank arm; this prevents any "micro-vibrations" from turning into annoying creaks during high-torque climbs!




