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Shimano Ultegra FC-R8100 Crankset - 2x12-speed - black - 2nd Choice

Shimano Ultegra FC-R8100 Crankset - 2x12-speed - black - 2nd Choice

 

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In the spirit of sustainability, high-quality products with minor visual defects and perfect function are given a 2. Chance. These are new products, demonstration models or returns that are carefully checked by our experts.

Give the products the chance they deserve – an environmentally conscious decision that is easy on your wallet!

Your product may have the following defects:

  • Traces of use / assembly marks
  • Scratches / paint damage / broken decals
  • Dirt / stains
  • Damage to or absence of the original packaging
  • Missing assembly instructions

 

Product Description:

Ultegra R8100 – Leave Time Behind

When developing the Ultegra R8100 series, Shimano took a holistic and 100 % performance-oriented approach, because great speed means great responsibility. Faster than ever before, the 12-speed road groupset scores with unparalleled control and comfort anytime and anywhere – whether in an everyman race, on the hunt for a personal best time or on a companionable ride.

As with the Dura Ace R9200, not only does Hyperglide+ make its way into the Ultegra's components, also its Di2 parts rely on Wireless technology to simplify operation and ensure smooth shifting.

Shimano Ultegra FC-R8100 crankset

As the central element of the 12-speed drivetrain of the Ultegra R8100 series, the FC-R8100 crankset is characterised by the shifting quality and transmission efficiency typical of Shimano. Not only the chainrings which feature a Hollowglide construction, but also the lightweight crank arms which are manufactured using Hollowtech II technology, contribute to optimised power transmission as well as faster and more precise shifting operations.
All this adds up to a perfect balance between stiffness, stability, light weight and rotational efficiency. Numerous crank arm lengths and chainrings with 50-34 or 52-36 teeth also offer variability and an optimal gear ratio for almost every riding situation.

Hollowtech II

The guiding principle of Shimano's Hollowtech II technology is the perfect balance between stiffness, stability, weight and rotational efficiency. The goal was to produce a crank that minimises the effort required for the drive and enables more efficient power transmission.

An exclusive forging process allows the production of extremely light crank arms that nevertheless guarantee maximum stiffness. The fixed connection of the right arm to the axle of the bottom bracket and its external bearing also serve an optimum relationship between stiffness and low weight.

Material:

crank arms, inner chainring: aluminium (anodized)
outer chainring: aluminium (anodized), carbon fiber reinforced polymer (CFRP)
axle: steel (plated)

Compatibility:

front derailleur: FD-R9250, FD-R8150
bottom bracket: SM-BBR60 (thread type), SM-BB72-41B (Press Fit)
chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100
 

Weight (170 mm, manufacturer's specs):

approx. 700 grams (50-34 teeth)

approx. 711 grams (52-36 teeth)

 

Scope of delivery: crankset (without bottom bracket)

Характеристики Shimano Ultegra FC-R8100 Crankset - 2x12-speed - black - 2nd Choice

Color: Black
Weight: 700g
Activity: Cycling
Material: Aluminium
Q-factor: 148mm
Item code: SHI580139
2nd choice: yes
Chain line: 44.5mm
Model year: 2023
Manufacturer: Shimano Parts
Product name: Shimano Ultegra FC-R8100 Crankset - 2x12-speed - black - 2nd Choice
Chainring mount: 2-speed
Shifting system: 12-speed
Usage bikesport: Road Bike
Crank arm length: 160, 165, 170, 172.5, 175
Manufacturer page: http://www.shimano-europe.com/
Manufacturer item code: IFCR8100MX04 / IFCR8100MX26 (160 mm)IFCR8100AX04 / IFCR8100AX26 (165 mm)IFCR8100CX04 / IFCR8100CX26 (170 mm)IFCR8100DX04 / IFCR8100DX26 (172.5 mm)IFCR8100EX04 / IFCR8100EX26 (175 mm)
Bottom bracket case width: 68mm, 70mm
Bottom bracket axle profile: 24mm Hollow Shaft
Road - bolt circle diameter: 110mm