absoluteBLACK Shimano Premium Round Road Ring

Shimano Premium Round Road Ring

Absolute Black´s aftermarket Shimano Premium Round Road Ring puts a big emphasis on stiffness, resisting flex with its high strength-to-weight ratio and thicker 5mm construction. These stout aluminum chainrings feature a one of a kind look, and use Absolute Black´s proven ramp and recess design for smooth and responsive shifting. They´re sold separately as inner and outer chainrings, and are compatible with any Shimano 4-bolt crankset. If you´re only getting an inner chainring, you can use your original bolts. If you´re using the outer chainring, you´ll want to purchase Absolute Black Bolt Covers or Long Bolts.

Details

• Premium road chainrings for Shimano 4-bolt cranksets
• Thicker 5mm construction for efficient power transfer
• High strength-to-weight ratio from CNC-machined alloy construction
• Proprietary ramp & recess design for smooth, crisp shifting
• One of a kind look with durable anodized finish
• Ramp design shifts best with combinations: 50/34, 52/36, 52/38, 53/39t
• Outer ring requires "Road Bolt Covers" or "Long Bolts" (sold separately)
• Item #ABC000C

Tech Specs

Material

CNC-machined 7075 aluminum, anodized

Teeth

[inner ring] 34, 36, 38, 39t, [outer ring] 50, 52, 53t

Bolt Circle Diameter

Shimano asymmetric 110mm

Connection

4-bolt

Compatible Components

Shimano Dura-Ace 9100, Dura Ace 9000, Ultegra R8000, Ultegra 6800, 105 R7000, 105 5800, & Tiagra 4700 cranksets

Claimed Weight

[34t] 1.1oz (30g), [36t] 1.3oz (38g), [38t] 1.5oz (43g), [39t] 1.6oz (45g), [50t] 4oz (114g), [52t] 4.6oz (129g), [53t] 4.8oz (136g)

Manufacturer Warranty

lifetime