Black round ALUGEAR inner 2X road chainring, 110 BCD 4-bolt Shimano asymmetric, 2x12-speed compatible

Round Inner 2X for 110 BCD 4b Shimano Asymmetric 2x12sp.

Chainring Inner ROUND for 2-speed Shimano 110 BCD 4 holes Asymmetrical Dura-Ace R9200, Ultegra R8100, 105 R7100 (12 speed)

€38,00

Color: Black

Black

Size: 34T

34T 36T 40T

In stock

Shipping and processing

Processing time: up to 10 business days. Shipping time: 2 to 7 business days. Provided by FedEx

Return policy

You can return an unused product within 30 days

Round Inner 2X for 110 BCD 4b Shimano Asymmetric 2x12sp.Black / 34T

€38,00

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Technical specifications

Intended use	2X 12sp. for Road, Time Trial bikes
Mounting position	inside of the crank
Bolt circle diameter	110 mm Shimano Asymmetric
Weight	34 teeth - 26g; 36 teeth - 29g, 40 teeth - 40g
Material	Aluminum 7075-T6
Made	CNC milling
Surface coating	Anodizing

Compatibility

Shifting	Shifting: 2x12 speed (only for use with double system and front derailleur)
Chainrings	Compatible with ALUGEAR Outer Сhainring only
Chains	Chainrings you may use the following chains: 11sp, 12sp Shimano; 12sp KMC chains
Cranks	For Shimano 2×12 speed cranks with 110 mm Asymmetrical bolt circle diameter (4-arms): 105 FC-R7100; Ultegra FC-R8100 (P); Dura-Ace FC-R9200 (P)

Recommendations

Optimum chainrings combinations: 50-34; 52-36; 54-40
It is also a good idea to use a new chain with your new ALUGEAR chainrings
We recommend using the optimal ALUGEAR 2-speed chainring combinations
The correct operation of the double set is guaranteed only when using ALUGEAR Outer and Inner chainrings together
Please remember that when replacing chainrings (especially when altering the size of the outer chainring), it is necessary to adjust the front derailleur

7075-T6

Aerospace grade aluminium

Ramped & pinned

Reliable 2X shifting under any conditions

Complete your build

Pair with an Alugear outer ring for a perfectly matched 2x setup

Information

Engineering excellence

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, ramp and climbing aids allow the chainrings particularly soft and fast shifting. So with them, shifting under load is easy. 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 drivetrains. 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.

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Round Inner 2X for 110 BCD 4b Shimano Asymmetric 2x12sp.