The narrow-wide disc is designed for use as a single chainring.

Technical Specifications:

• Offset: 38T-52T 3.0mm; 54T 2.0mm; 56T 1.0mm; 58T 0.0mm; 60T -1.0mm; 62T -1.5mm
• Diameter: 38T - 161.3mm; 40T - 171.0mm; 42T - 179.0mm; 44T - 187.0mm; 46T - 195.5mm; 48T - 202.4mm; 50T - 210.4mm; 52T - 219.0mm; 54T - 227mm; 56T - 235mm; 58T - 243mm; 60T - 251mm; 62T - 259mm
• Technology: Narrow Wide 1-speed
• Material: Aluminum 7075-T6
• Construction: CNC milling
• Surface coating: Anodized

Compatibility:

• For Shimano cranksets with 110 mm asymmetric circular spindle (4-arm): Dura-Ace R9200; Ultegra R8100; 105 R7100
• Compatible chains include: 12-speed Shimano HG+; 12-speed SRAM Flattop; Campagnolo; KMC chains
• Drive: 1x12
• Note: 1x chainring is not compatible with 2x setups

Information:

ALUGEAR chainrings are some of the lightest on the market. Based on our experience and rigorous testing, we adjusted the arm design and mechanically manufactured the chainrings to make minimal concessions to impact resistance in exchange for significant weight reduction. The CNC machined chainrings are made from 7075 T6 aluminum and industrially anodized for protection against mechanical stress, attractive appearance, and excellent feel.

A unique tooth profile eliminates chain noise, reduces wear, and provides smooth operation across the most common drivetrain combinations, such as 12-speed setups.

ALUGEAR chainrings are the best choice if you are looking for a technologically advanced chainring with a unique design and lightweight construction.

Recommendations:

• For a better appearance, you can use the ALUGEAR AERO COVER (for 105 R7100, Ultegra R8100, R8100-P or Dura-Ace R9200, R9200-P cranksets).
• You can also use ALUGEAR bolts and nuts for mounting: require 7mm nuts and 6.5mm bolts.
• It is recommended to use a rear derailleur with a clutch system for better chain safety.
• It is advisable to use a new chain with the new ALUGEAR chainring.

Installation instructions:

• Chainring installation diagram.
• Chainring with cover installation diagram.
• Chainring with nuts and bolts installation diagram.