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The original AERO design ALUGEAR chainring 2-speed
TECHNICAL SPECIFICATIONS
Intended to use: 2×11 speed for Road and Time Trial bike
Weights: 50 teeth – 112g; 52 teeth – 126g; 54 teeth - 142g; 34 teeth – 26g; 36 teeth – 29g; 40 teeth – 39g
Optimum chainring combinations: 50-34; 52-36; 54-40
Mounting position: outside 50T; 52T; 54T; inside 34T; 36T; 40T
Bolt circle diameter: 110 mm Shimano Asymmetric
Attachment: 4-arm spider
Material: Aluminum 7075-T6
Made: CNC milling
Surface coating: Anodizing
Delivery includes: 1 x outer chainring, 1x inner chainring.
(Without Aero cover, without nuts and bolts)
COMPATIBILITY
For Shimano 2×11 cranks with 110 mm Asymmetrical bolt circle diameter (4-arms): Dura-Ace R9100; Ultegra R8000; 105 R7000 and Dura-Ace 9000; Ultegra 6800; 105 5800; Tiagra 4700
Not compatible with Shimano 2×11 cranks with PowerMeters
Chainrings you may use the following chains: all 10sp, 11sp Shimano, SRAM; 10sp, 11sp; Campagnolo; KMC chains
Shifting: 2x11
INFORMATION
ALUGEAR chainrings are some of the lightest chainrings on the market. Using our experience and vigorous testing, we tweaked the arm design and strategically machined the chainrings so that only minimal sacrifices were made in impact strength in exchange for large gains in weight reduction
With special tooth profiles, mount and climbing aids allow chainrings a particularly soft and fast switching. So with them a shift under load easily. The chainrings have been specially tuned by climbing aids and can only achieve their superior shifting performance in the combinations provided by Alugear
The chainrings are CNC machined from 7075 T6 aluminum and hard coat industrially anodized to provide protection from mechanical impacts, a good look, and an excellent tactile feel to each of the chainrings that lasts a long time
A unique tooth profile eliminates chain noise, reduces wear, and provides smooth operation on the entire system of all the most common combinations of drive trains
The tooth profile is specially designed for use with Road chains
ALUGEAR chainrings are the best choice if you are looking for a technologically sound chainring with a unique design and low weight
RECOMMENDATIONS
For the best appearance you may use ALUGEAR AERO COVER (for Ultegra R8000 cranks)
Also, you may use ALUGEAR chainring bolts and nuts for mounting: 7mm nuts and 6,5mm bolts are required