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Shimano 105 5800 Road Bike Group set  11-Speed

Shimano 105 5800 11 Speed Road Bike Groupset

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List price: $696.89  
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Shimano 105 5800 11 Speed
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Price $567.47 $537.60 $477.87 $418.13
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Shimano 105 5800 11 Speed  Road Bike Groupset  

Shimano’s new 105 brings top-level performance to the widest range of riders

This is the  Shimano 105 5800 11 Speed  Road Bike Group set launched recently its a brand new version of the most popular road group set worldwide, the 105. The new 105 (5800 series) adopts key features of the earlier introduced race proven group set Dura-Ace and Ultegra and brings it to the cycling enthusiasts for every day riding. The main new features are an 11-speed drivetrain that shifts more precise and lighter than ever, improved brake power and better control of the bike.

Shimano’s new 105 gives the widest range of road riders the opportunity to ride a group set, that is inspired by professional riders. Whether it is for everyday riding or longer rides & climbs in the weekend.

The new 105 has an 11-speed drivetrain and adopted some key features from Dura-Ace and Ultegra. The 105 has that same light action and defined click engagement like Dura-Ace and Ultegra. Partly because of the polymer coated cables and partly because of the redesigned derailleurs and shift levers. This clearly shows Shimano’s philosophy of system engineering. All parts are individually designed to work together as one group set. The shift levers have a compact grip which provides more comfort and control during a ride. The lever can be customized for different hand sizes with a 10mm screw type reach adjust. The front derailleur has a longer link arm combined with a new spring mechanism. Also, the rear derailleur has a new spring mechanism and cable pitch, which provides robust adjustability.

The iconic four arm crank has been passed down from Dura-Ace to the new 105 and gives the best power transfer and balance between stiffness and lightweight. It also has one bolt circle diameter for compact and traditional double chain sets which means one crank arm fits all chainring size. The 11-speed cassette provides small gear steps that optimize rhythm and cadence control. The chain is treated with Shimano’s SIL-TEC coating to run smoother and wear longer in all conditions.

Compared to the previous 105 group set (5700) Shimano made the brake system more efficient and increased brake power with 10%. This is mainly due to the new symmetrical dual-pivot brake calipers that are compatible up to 28c tires. 


Note: the lead time may be up to 1 week. Sold as OEM packing.



  • Make: Shimano
  • Model: 105 5800 11 Speed 
  • Colour: Silver
  • Cassette: 11-28T
  • Chain links: 116
  • Rear derailleur: Short Cage
  • Crank teeth: 50-34T
  • Speed: 11 Speed
  • Crank arm length: 170mm
  • Material: Alloy
  • Derailleur Type: Braze-On


5800 Crankset Features:

The new 5800 Crankset features a new four-arm Hollowtech II design similar to that of the current Ultegra and Dura-Ace. The new chain set is stiffer and lighter than the five-arm design it replaces and Shimano have reinforced construction around the chainring area to further improve the stiffness to weight ratio.

  • 105 FC-5800 Chainset 50.34T
  • Crank Arm Length: 17Omm
  • HOLLOWTECH II design - Optimum balance of lightweight and stiffness
  • New gear dimension for great improvements
  • Improved gear for less chain touch in small/ small combination
  • Hyperdrive SG-X-chainrings
  • DUAL-SIS-compatible
  • Includes Bottom Bracket
  • Dual Control Shifters Set STI 105 ST-5800


105 now gains the light and responsive shift action found in Dura-Ace and Ultegra Levers, with a new compact shape that’s been borrowed from the levers of Shimano’s more expensive group sets. The lever can also be adjusted to accommodate different hand sizes.

  • Powerful and controllable braking system
105 Rear Derailleur RD-5800 SS Features:

Shimano has included a new spring mechanism and cable pitch in the new 105 rear derailleur in order to provide robust adjustability.

  • Short Cage

 105 Front Derailleur FD-5800 Braze On:

The new 105 front derailleur has a longer link arm and a new spring mechanism compared with the last generation component.

  • Braze On

 105 Brake Set BR-5800:

The new 105 brakes feature a new symmetrical dual pivot calliper design, with a higher arch allowing clearance for up to a 28mm wide tyre. This results in a 10% increase in power.

 105Cassette CS-5800:

The new 105 11 Speed Cassette uses close ratios that Shimano say optimise rhythm and cadence control.

  • 11-28T

 CN-HG600 11-Speed Chain:

The new CN-HG600 11-Speed Chain uses Shimano’s low friction surface treatment known as SIL-TEC. The new chain’s PTFE surface coating reduces friction whilst boosting durability. The technology first debuted on Shimano’s flagship Dura-Ace 9000 Chain a couple of years ago.

  • 116 Links

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