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Shimano Ultegra CN6701 10-Speed Chain
  • £29.99
  • RRP £34.99
  • Saving you £14

Super narrow lightweight 10-speed directional chain for optimum cassette and chainset interaction and maximum power transfer.Key Features:Chain uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassette,Outer plate design has been developed to reduce the chance of chain suck,The inner plate has been developed for better contact with gears giving smoother shifting under high load, giving efficient pedalling, increased rigidity and near silent running,5.88 mm chain width, optimised for 10-speed Super Narrow HG drivetrains,Weight 267 grams.

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Shimano Ultegra CN6701 Chain 10 Speed 116 Links
  • £26.24
  • RRP £34.99
  • Saving you £25

Ultegra Super Narrow lightweight 10-speed directional chain developed for optimum cassette and chainset interaction and maximum power transfer. The 6701 Chain uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassette. The outer plate design has been developed to reduce the chance of chain suck while the inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedaling, increased rigidity and near silent running. Perforated inner link plates offer great weight savings. This 10-speed compatible chain has a 5.88 mm chain width, fully optimised for 10-speed Super Narrow Hyperglide (HG) drivetrains.

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Shimano Ultegra CS-6700 Bicycle Cassette - 10 Speed - 11-25 Tooth
  • £64.99
  • RRP £74.99
  • Saving you £13

The Shimano Ultegra CS-6700 10-Speed Bicycle Cassette is crafted with a rigid alloy sprocket carrier for a more lightweight, durable profile that enables smooth, more efficient gear shifting. This innovative upgrade on Shimano’s classic 660 and SL versions features reduced weight, ni-plated Hyperglide sprockets with improved teeth shaping and revised ramps for smoother, quicker and more accurate shifting. Key Features: Shimano Ultegra CS-6700 Bicycle Cassette Lightweight 10-speed cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes Hyperglide sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear Wide gear range to meet the demands of all types of rider. Manufactured claimed weight 209g (11-23 teeth) For more information on how to keep your bike running smoothly, click here to see PBK's expert advice on taking care of your chains and cassettes.

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Shimano Ultegra CS-6700 Bicycle Chain and Cassette - 10 Speed Grey 11-25T
  • £76.49
  • RRP £101.99
  • Saving you £25

The Shimano Ultegra CS-6700 10-Speed Bicycle Cassette is crafted with a rigid alloy sprocket carrier for a more lightweight, durable profile that enables smooth, more efficient gear shifting. This innovative upgrade on Shimano’s classic 660 and SL versions features reduced weight, ni-plated Hyperglide sprockets with improved teeth shaping and revised ramps for smoother, quicker and more accurate shifting. Key Features: Shimano Ultegra CS-6700 Bicycle Cassette Lightweight 10-speed cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes Hyperglide sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear Wide gear range to meet the demands of all types of rider. Manufactured claimed weight 209g (11-23 teeth) *** The Ultegra CN-6701 10 speed bicycle chain is a narrow, lightweight directional chain engineered to offer optimal cassette and chainset interaction and maximum power transfer for a greater cycling performance. The outer plate has been developed to reduce the chance of chain suck while the inner plate is designed to give better, more efficient contact with gears for smoother shifting under high loads, enhanced rigidity and almost silent operation. – L.R. Features: Shimano Ultegra CN-6701 10 Speed Bicycle Chain Premium quality build with a slim, lightweight design for maximum power transfer Chain uses a directional design with specifically shaped inner and outer plates The inner plate has been developed for better contact with gears Supplied with Shimano joining pin Chain width: 5.88mm Chain type: Super Narrow HG for 10-speed cassette compatibility minimum of 114 links Weight: 267g (Manufacturer claimed). For more information on how to keep your bike running smoothly, click here to see PBK's expert advice on taking care of your chains and cassettes.

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Shimano Ultegra CS-R8000 11 Speed Cassette - 11-25T
  • £55.49
  • RRP £84.99
  • Saving you £35

Shimano’s Ultegra range is race focused, but at a more affordable price than the top-tier Dura-Ace line. The R8000 offers 11 sprockets and is available in a broad range of ratios, so whether it’s a tightly packed 11–25-tooth block for time trialing or a wide ranging 11–32-tooth for conquering even the most epic climbs, there’s something for everyone. Tough, Lightweight, Durable Machined from a combination of aluminum and steel, an Ultegra R8000 cassette offers an excellent compromise between weight, durability, and performance. To keep the weight down aluminium is used to rivet the largest three sprockets and a fibre-reinforced composite the next largest two. Tipping the scales at a low of 232 grams for the 11–25T, and a high of 300g for the 14–28T option, regardless of your preferred choice you certainly won’t be weighed down. But, not only is this cassette lightweight and high performing, it is also durable. Corrosion resistance comes via the nickel-plated steel sprockets, so you can ride without the worry your cassette will disintegrate at the sight of rain. A Shift In Performance Aside from weight and durability, the R8000 cassette performs its job well. In fact, there’s virtually an imperceptible difference in performance between it and a higher-spec’d Dura-Ace cassette. Shifting gears is exactly what you’d expect from a component maker as known for precision engineering as Shimano, in one of its top-tier products. It’s quick, smooth, and reliable. Hyperglide technology, the brand’s proprietary system, ensures that even under load you’ll be able to change through the gears. Product Features Lightweight 11-speed HG-EV cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes Hyperglide EV sprockets have been designed to reduce weight and improved teeth shaping provides accurate shifting and reduced wear Wide gear range to meet the demands of all types of rider Optimised for use with 11-speed HG-EV chains, but compatible with all 11-speed drivetrains Please note, due to the current supply situation with many products, aftermarket packaging and manuals may not be supplied. Manuals can be downloaded from si.shimano.com and we advise that any work carried out on your bicycle is done so by a Shimano Approved Service Centre

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Shimano Ultegra CS-R8000 11 Speed Cassette - 12-25T
  • £55.49
  • RRP £84.99
  • Saving you £35

Shimano’s Ultegra range is race focused, but at a more affordable price than the top-tier Dura-Ace line. The R8000 offers 11 sprockets and is available in a broad range of ratios, so whether it’s a tightly packed 11–25-tooth block for time trialing or a wide ranging 11–32-tooth for conquering even the most epic climbs, there’s something for everyone. Tough, Lightweight, Durable Machined from a combination of aluminum and steel, an Ultegra R8000 cassette offers an excellent compromise between weight, durability, and performance. To keep the weight down aluminium is used to rivet the largest three sprockets and a fibre-reinforced composite the next largest two. Tipping the scales at a low of 232 grams for the 11–25T, and a high of 300g for the 14–28T option, regardless of your preferred choice you certainly won’t be weighed down. But, not only is this cassette lightweight and high performing, it is also durable. Corrosion resistance comes via the nickel-plated steel sprockets, so you can ride without the worry your cassette will disintegrate at the sight of rain. A Shift In Performance Aside from weight and durability, the R8000 cassette performs its job well. In fact, there’s virtually an imperceptible difference in performance between it and a higher-spec’d Dura-Ace cassette. Shifting gears is exactly what you’d expect from a component maker as known for precision engineering as Shimano, in one of its top-tier products. It’s quick, smooth, and reliable. Hyperglide technology, the brand’s proprietary system, ensures that even under load you’ll be able to change through the gears. Product Features Lightweight 11-speed HG-EV cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes Hyperglide EV sprockets have been designed to reduce weight and improved teeth shaping provides accurate shifting and reduced wear Wide gear range to meet the demands of all types of rider Optimised for use with 11-speed HG-EV chains, but compatible with all 11-speed drivetrains Please note, due to the current supply situation with many products, aftermarket packaging and manuals may not be supplied. Manuals can be downloaded from si.shimano.com and we advise that any work carried out on your bicycle is done so by a Shimano Approved Service Centre

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Shimano Ultegra CS6600 10 Speed Road Cassette
  • £71.99
  • RRP £79.99
  • Saving you £10

High performance 10-speed Road cassette.Key Features:Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load,Close ratio gearing allows a more efficient use of energy through finer cadence control,Three largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity,Sprockets are cut away and drilled to further reduce weight without reducing rigidity,Nickel-plated finish offers hard wearing resistance to corrosion,Chrome-plated steel cassette lockring,For Super Narrow 10-speed HG chains.

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Shimano Ultegra CS6700 10 Speed Road Cassette
  • £74.99

Key Features:Lightweight 10-speed cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes,Hyperglide sprockets have been designed to reduce weight with improve teeth shaping giving accurate shifting and reduced wear,Wide gear range to meet the demands of all types of rider,Weight 208 grams (11-23 teeth).

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Shimano Ultegra Di2 R600 Climbing Shifter Switch - Black - Right Hand - Drop Handlebar - E-tube}, Black
  • £94.99

Shimano Ultegra Di2 R600 Climbing Shifter SwitchCompatible with a range of Shimano E-tube Di2 shifters, this simple to install right hand shifting switch enables you to quickly change your rear gears without changing your hand position on the bars. Ideal for race use, it requires minimal effort to operate so you can concentrate all your energy on the road ahead.Features: Compatibility: Modern 5-port E-tube type Shimano Di2 electronic drivetrains only To be plugged direct into E-tube drop bar STI shifters Shift switch is supplied with 260.5mm E-tube electrical cables installed Compatible with the Dura-Ace 9070 and Ultegra 6770 Di2 systems With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the derailleur to instantaneously select the correct gear The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold Climbing twin button satellite shift switch is used to operate the rear derailleur whilst your hands are on the top of the bars, one button up, one button down Weight: 30g (pair) Shifter Compatibility List:Ultegra Di2 R8050Ultegra Di2 ST-6870Dura-Ace Di2 ST-R9150Dura-Ace Di2 ST-9070Please Note: Not compatible with the older Dura-Ace 7970 Di2 systemA 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Ultegra Di2 R600 Climbing Shifter Switch Gear Levers
  • £94.99

With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear. The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts. Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold. Climbing twin button satellite shift switch is used to operate the rear derailleur whilst your hands are on the top of the bars, one button up, one button down.

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Shimano Ultegra Di2 R8050 11-Speed Front Derailleur
  • £193.49
  • RRP £214.99
  • Saving you £10

Smooth, crisp and silky shifting, the Shimano Ultegra R8050 Di2 11-Speed Front Derailleur is an addition that will give you the ultimate riding experience.Top Gear Teeth: 46-53TChain Line: 43,5Braze-On ClampWeight: 132gVastly improved performance over mechanical shifters due to electronic front derailleurs' lack of susceptibility to cable stretch, this Ultegra Di2 compatible component uses electronic shifting cables to move a measured amount each and every time, regardless of conditions or environment. With millimeter accurate shifting guaranteed time after time. Compatible with Shimano's Syncronized Shift technology, this derailleur is intelligently designed, and, with your input, can be programmed to shift in order to maintain optimal gear ratios automatically. Redesigned to fit wider gear pitch, this front derailleur can take chainrings sized up to 53 teeth and go as low as 46 teeth, assuring you of a smooth transmission when switching between the two. Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available

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Shimano Ultegra Di2 R8050 11-Speed Rear Derailleur - Medium
  • £233.99
  • RRP £259.99
  • Saving you £10

With the new Ultegra R8050 rear derailleur shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear. The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts.Compatible with 11-speed Di2 systems, this derailleur is made from high tolerance cold forged aluminium for incredible durability and a longer lifespan. Benefiting from a low-profile shadow design construction that reduces the risk of damage in the event of a crash, this derailleur also remains more aerodynamic on the bike, sitting poised and perfectly placed to flick between your preferred gear. A low friction shifting action guaranteed by four self-lubricating micro-machined fluorine coated link pivot bushings, you can be sure of joy each time you switch your gear.Low profile shadow design constructionHigh tolerance cold forged aluminium link platesSS Cage: Compatible with 11-25T Up To 11-30TGS Cage: Compatible with 11-28T Up To 11-34TWeight: 242g (SS Type), 249g (GS Type)

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