12x2-speed groupset Shimano 105 Disc R7100

As a complete package, the mechanical Shimano 105 R7100 Disc groupset, optionally with bottom bracket and brake discs. The new Shimano 105 R7100 series, the entry-level model in Shimano’s 12-speed road bike range, featuring mechanical STI Disc shifters, rear derailleur and front derailleur.

The Shimano 105 breathes new life into road cycling with its completely redesigned interface and high-quality mechanical 12-speed shifting. The ergonomic Dual Control levers suit a wide range of hand sizes, whilst the sub-1:1 gear ratio of the drivetrain offers excellent climbing capabilities. The SHIMANO 105’s 12-speed drivetrain, with a gear ratio of less than 1:1, allows you to tackle even steep climbs and better control your energy.

Contents of the Shimano 105 R7100 Disc Groupset:

• Shimano 105 rear derailleur, RD-R7100
• Shimano 105 front derailleur FD-R7100
• Optional Shimano front derailleur clamp 31.8 or 34.9 mm
• Shimano 105 STI, Dual Control Disc shift lever, 12/2-speed, ST-R7120
• Shimano 105 BR-R7170 Folding Mount brake calipers
• Shimano disc brake hoses 100 and 170 cm, SM-BH-90-JK-SSR
• Shimano small parts for assembly and cable shortening
• Shimano Ultegra crankset, FC-R7100, 50/34 or 52/36 teeth
• Optional Shimano Ultegra bottom bracket, SMBBR60 BSA or Italian thread or Pressfit BB86, or Wheels MFG bottom bracket for BB30, Pressfit30, BBright or BB386 bottom bracket shells
• Shimano 105 CS-R7100 or Ultegra CS-R8100 cassette
• Shimano chain, CN-M7100

Shimano 105 RD-R7100 rear derailleur:

Precise and fast-shifting 12-speed road bike rear derailleur The Shimano 105 12-speed rear derailleur combines the smooth and stable shifting performance of the Shimano Shadow RD design with Direct-Mount compatibility and a wider gear range.

Shimano 105 front derailleur FD-R7100:

12-speed-compatible front derailleur with Toggle-Link construction. The Shimano 105 12-speed front derailleur features smoother front shifting and generally smooth, natural shifting performance, whilst the SHIMANO Toggle-Link construction with optimised cage design ensures seamless compatibility with road bikes fitted with disc brakes. It is available for brazed-on and clamp-on mounting.

Shimano 105 ST-R7120 shift-brake levers:

The new lever design gives more riders better control. The mechanical Shimano 105 R7120 Dual Control 12-speed shift/brake levers feature a revised lever position and clamp shape, based on extensive analysis of a wide variety of hand shapes. This is combined with the weather-independent reliability of disc brakes and the fast, intuitive shifting quality expected from SHIMANO 105. The new shape shortens the reach to the lever, making it easier to grip comfortably for a wide range of hand sizes and shapes.

Shimano 105 Disc Brake Caliper BR-R7170:

The BR-R7170 road bike disc brake calipers for the 12-speed 105 Di2 groupset. These calipers are compatible with all Shimano disc brake levers. Recommended brake discs: RT-MT800. Thanks to the 10 per cent greater spacing between the brake pads, the brakes can be adjusted more effectively and noise is minimised.

The new 105 BR-R7170 brake caliper offers improved modulation, a quieter braking system and an extremely simple bleeding process. The 105 R7170 disc brake caliper offers road cyclists a completely new sense of control thanks to its improved modulation and faster-engaging initial braking force. Despite its flatter design, the system produces less braking noise than ever before and is easier to maintain. The bleed system has been redesigned and made significantly simpler.

Shimano 105 FC R7100 crankset:

Hollow-forged crank arms and a reduced outer surface area lower the weight of the new 105 FC R7100 crankset. The design of the 2x12-speed Hollowtech II crankset not only boasts a look and aesthetic with cult potential, but also ensures enhanced performance. A wider, yet lighter than its predecessor, crank arm and the large chainrings with Hollowglide technology increase stiffness and optimise power transfer to the pedal.

Optional bottom brackets:

We offer optional bottom brackets from Shimano, Wheels Manufacturing and FSA for this groupset. This allows the crankset to be fitted into all standard bottom bracket shells.

Shimano 105 CR-R7100 cassette

The 12-speed cassettes with their close-ratio gearing down to a 19-tooth sprocket guarantee the perfect gear ratio at all times and are also perfectly suited to mountain riding. Shimano employs large chain wrap angles in its 12-speed drivetrains. This ensures highly efficient power transmission and smooth running. Naturally, this also improves the durability of the drivetrain. The tried-and-tested CNM7100 chains are used.

Shimano CN-M7100 Chain

The Shimano chain for 12-speed road bike and MTB drivetrains. The special asymmetrical outer and inner links, combined with Shimano’s SIL-TEC surface coating, minimise friction, optimise performance and also reduce dirt build-up.

The chain is perfectly matched to the 12-speed Shimano chainrings with Dynamic Chain Engagement+ (DCE+) tooth profiles. The HG Plus chain has been completely redesigned and features even finer, precision-machined contact surfaces with the sprockets and chainrings, particularly on the inner links. Furthermore, the inner links are chrome-plated, making them even more durable whilst delivering excellent shifting performance when shifting up or down.

Compatible bottom bracket shells – bottom brackets

There is now a wide variety of bottom bracket shells on modern frames. Shimano only offers compatible bottom brackets for some of these. To ensure the Ultegra groupset fits all frames, we supply optional FSA or Wheels MFG bottom brackets for the bottom bracket shells for which Shimano does not offer bottom brackets. Wheels Outboard bottom brackets are significantly more durable than standard press-fit bearings, as the cup halves are bolted together, ensuring they sit flat and securely within the frame. Wheels bearings are available in various quality grades: ABEC3 standard bearings, angular contact bearings and ceramic bearings.

• BSA threaded housing, 68 mm installation width
  Shimano SM-BBR60B bottom bracket
• BSA threaded housing, 70 mm installation width
  Shimano SM-BBR60I bottom bracket
• Pressfit BB86 housing, installation width 86.5 mm, press-fit diameter 41 mm, Shimano
  SM-BB71-41B bottom bracket or Wheels MFG Outboard
  BB86-OUT-BB bottom bracket
• BB30 shell, installation width 68 mm, press-fit depth 42 mm, Wheels MFG
  Outboard BB30-OUT bottom bracket
• BB30A shell, installation width 73 mm (asymmetrical), press-fit depth 42 mm, Wheels MFG Outboard
  BB30A-OUT-SHIM bottom bracket
• Pressfit 30 shell, installation width 68 mm, press fit 46 mm Wheels MFG Outboard
  PF30-OUT bottom bracket
• Pressfit 30A shell, installation width 68 mm asymmetrical, press-fit dimension 46 mm, Wheels MFG Outboard
  PF30A-OUT-SHIM bottom bracket
• BBRight housing, installation width 79 mm, press-fit dimension 46 mm Wheels MFG Outboard
  BBRIGHT-OUT bottom bracket
• BB386 shell, installation width 86.5 mm, press-fit dimension 46 mm, Wheels MFG Outboard
  386EVOBB-SHIMBB bottom bracket
• Trek BB90 shell, installation width 90 mm, press-fit dimension 41 mm FSA
  230-600 bottom bracket
• T47 threaded shell, installation width
  68–73 mm Wheels MFG Outboard T47-OUT-SHIM
• T47 threaded shell, installation width 86–89.5 mm
  Wheels MFG Inboard T47-BB-SHIM
• T47 threaded shell, installation width 77.79 mm asymmetrical Wheels MFG
  BB-T47A-24MM bottom bracket

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com