Chainring Alugear Round Aero 110 BCD 4b Asymmetrical Shimano 2×12 Speed Black

ALUGEAR chainrings are among the lightest on the market. Thanks to their experience and rigorous testing, they have fine-tuned the arm design and strategically machined the chainrings so that only minimal sacrifices have been made in terms of impact resistance in exchange for significant gains in weight reduction.With unique tooth profiles, mounting and climbing aids enable the chainrings to switch particularly smoothly and quickly. So, with them, an easy load change. The chainrings have been specially tuned by climbing aids and can only achieve their superior shifting performance in combinations supplied by ALUGEAR.The chainrings are CNC-machined from 7075 T6 aluminum and industrially hard-anodized to offer protection against mechanical impact, a beautiful appearance and excellent tactile feel to each long-lasting chainring.A unique tooth profile eliminates chain noise, reduces wear and ensures smooth operation throughout the system of all common drive combinationsALUGEAR chainrings are the best choice if you’re looking for a technologically solid chainring with a unique design and low weight.Features : Intended use: 2u00d712 gears for road bikes and time trials Weight: 52 teeth – 127 g; 54 teeth – 143g Mounting position: outside the crank Bolt circle diameter: 110 mm Shimano Asymmetric Mounting: 4-arm spider Material: Aluminium 7075-T6 Made: CNC milled Surface coating: Anodized Delivery includes: 1 x outer chainring (without inner chainring, Aero cover, nuts and bolts)Compatibility: For Shimano 2u00d712-speed cranks with 110 mm asymmetrical bolt circle diameter (4 arms): 105 FC-R7100; Ultegra FC-R8100 (P); Dura-Ace FC-R9200 (P) Chainrings are compatible with 12-speed cranks FC-R8100-P; FC-R9200-P with original PowerMeter Compatible with ALUGEAR inner ring only Chainrings, you can use the following chains: 11sp, 12sp Shimano; KMC 12sp chains Gear change: 2×12 speeds (only for use with dual system and front derailleur)