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Chainrings Set 2x12sp. Round for 110 BCD 4b Shimano Asymmetric

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

Sale price601,00 zł

Color: Black

Size: 48T-34T
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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

Blue anodized ALUGEAR round road outer chainring and black inner ring pair, 110 BCD 4-bolt Shimano asymmetric, wave pattern
Chainrings Set 2x12sp. Round for 110 BCD 4b Shimano AsymmetricBlack / 48T-34T Sale price601,00 zł
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Technical specifications

Intended use
2X 12sp. for Road, Time Trial bikes
Optimum chainring combinations
50-34; 52-36; 54-40; 56-40
Mounting position
outside 50T; 52T; 54T; 56T; inside 34T; 36T; 40T
Bolt circle diameter
110 mm Shimano Asymmetric
Weight
50 teeth - 112g; 52 teeth - 127g; 54 teeth - 143g; 56 teeth - 171g (adapter+bolt - 4g); 34 teeth - 26g; 36 teeth - 29g; 40 teeth - 40g
Material
Aluminum 7075-T6
Made
CNC milling
Surface coating
Anodizing

Compatibility

Shifting
2x12
Chains
Chainrings you may use the following chains: 12sp Shimano HG+
Cranks

For Shimano 2×12 speed cranks with 110 mm Asymmetrical bolt circle diameter (4-arms): FC-R7100; FC-R8100 (P); FC-R9200 (P). 

The chainrings are compatible with 12-speed cranks FC-R8100-P; FC-R9200-P with Original PowerMeter

Covers
with ALUGEAR Covers for 12sp. chainring
Powermeter
with a Shimano 12sp. crankset integrated power meter

Recommendations

  • For the best appearance, you may use ALUGEAR AERO COVER (for 105 R7100 , Ultegra R8100 , R8100-P or Dura-Ace R9200 , R9200-P cranks)
  • Also, you may use ALUGEAR chainring bolts and nuts for mounting: 7mm nuts and 6,5mm bolts are required It is also a good idea to use a new chain with your new ALUGEAR chainrings
  • It is recommended to use a well-lubricated chain on every ride
  • We recommend using the optimal Alugear 2-speed chainrings combination
  • The correct operation of the double set is guaranteed only when using Alugear outer and inner chainrings together
  • Tool holder: 5 mm hexagon socket maximum permissible torque: 10 Nm

Installation Instructions

Alugear 2X chainring installation with the AERO cover Download
Alugear 2X chainring installation with the nuts and bolts Download
Front Derailleur Adapter Installation for 56T-40T set Download

7075-T6

Aerospace grade aluminium

Ramped & pinned

Reliable 2X shifting under any conditions

8+ colours

Match your bike with multiple anodized options

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 unique 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.

Quality Manufacturing - proudly made in Poland.

  • 5 stars: 11 (92%)
  • 4 stars: 1 (8%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
M
Marquelle K.

Aero and looks great!

m
marco m.

Ottimo prodotto per qualità ed estetica,complimenti

R
Roderick L.

Great product!! Aesthetically It’s a beautiful piece & functionality it works great!!

S
Sergio R.

Works smooth and looks sharp, been riding it for one month so far. So far so good 👍

M
Marwan

Real nice

A
Asiel

Envio muy rapido! El cobro de mi IVA en canaria no fue correcto pero lo he reclamado y espero que me ayuden. Gracias.

T
Tasos K.

Great product good quality and works fine😉

A
Adam K.

Quality of the product is great! delivery was fast. the only topic is that mounting instructions on the youtube are not sufficient as there are few more bolts that came with the product. i managed to do it and it works fine. but maybe for the future i would propose to create an installation video.

A
Alessandro C.

Great appearance and functional without problems during use.

A
Alberto S.

Ottime e ben fatte. Quello che cercavo, rendono shimano bello.

d
diegosanberlg199@gmail.com

Hace algo de ruedo con la cadena Shimano pero la compatibilidad de las bielas es perfecta, eso sí el precio algo alto para lo que es

D
Dean M.

Love the look of these chain rings. They perform great as well. Be sure to grease ALL metal to metal surfaces. I only greased the bolts when I initially installed the 2X system on my Ultegra cranks. After a month or so of riding they started creaking and it progressively got worse and worse. After greasing every other part on my bike I came across a YouTube video about diagnosing bottom bracket creaks. It was there I learned about this problem that can occur on 2X cranks. So grease those puppies up when you assemble them!