Although the crank arms and spider arms are noticeably bigger, which increases stiffness, the overall weight has dropped by 7g over the previous edition of Dura-Ace. The crankset has been adapted to work with disc brake road bikes that generally have 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing. The Compact version offered here features a 50.34T chainring profile to offer an excellent rider tuned gear combination for varied conditions from flats to high mountains. Please note: Bottom bracket is NOT included.
The 9120 shifters feature a re-designed brake hood that is more comfortable to grip, especially for those with smaller hands. The shifters also offer up to 14mm of reach adjustment. The shifter hood has been slimmed down considerably from previous hydraulic STI shifters and is close in size and shape to the mechanical brake lever. The 9170 brake calipers have been tuned to perform optimally in road racing conditions. They feature the Shimano Flat Mount system for a sleek and aerodynamic profile and Ice Tech pads for improved heat dissipation.
The R9170 calipers feature the Shimano Flat Mount system for a sleek and aerodynamic profile and Ice Tech pads for improved heat dissipation. They are easy to set up and maintain thanks to their easy bleed system that uses one-way bleeding.
Dura-Ace R9100 STI are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt. Shift cables routed under the bar tape using Polymer coated inner wires make for a smooth shift action, providing faster, lighter shifting. Vivid Index shifting with short stroke to the release levers gives a quick and accurate shift. Gear shift cables can either be routed round the front or rear of the handlebar to suit all rider preferences. Ergonomic shift arc follows natural hand movement with inward shift stroke distance reduced for rapid and precise gear changes. Small volume ergonomically designed smooth lever hoods for added comfort. Brake lever pivots have been positioned to increase power and improve ergonomics when riding on the hoods. Finely tuneable reach adjusters for the levers enable custom fitment for all hands. Please note: Cables sold separately.
The lightweight carbon body of these components provides a large shoe contact area to maximise power transfer and support whilst reducing weight. Their wide flat profile gives better road clearance and cornering, also allowing wider bearing placement for increased rigidity and uniform load distribution. The Shimano R9100 Pedals provide a low profile 8.8mm body height from the axle centre to the cleat contact surface and a silky smooth 3-bearing axle system. Plus, there's a wide roller-bearing stainless steel pedal body plate for increased durability. In addition to this, the open design of the Shimano Dura-Ace R9100 pedals allows for easy access and cleat adjustments, while their wider shoe cleat has a long life and is easier for walking than other cleats. Finally, their large binding target allows quick engagement and wide cleats provide more efficient pedalling. There are three types of shoe cleats available: fixed, 3 degrees of float in each direction, or 3 degrees of float from a font-centre pivot.
The internal toggle mechanism provides greater clearance for larger tyres and it now features a built in cable tension adjustment bolt meaning there is no need for inline barrel adjusters.
The 9170 shifters feature an ideal ergonomic shape that is comfortable in the hand and similar in size to mechanical braking versions of the shifter. The shift paddles now also feature a more defined "click" for confidence in shifting and to prevent mis-shifts. E-Tube compatibility means that the shift paddles can be customised to suit the rider. The 9170 shifters now include Synchro-shift technology that automatically moves the rear derailleur when the front ring is changed or moves the front derailleur with the rear shifts to optimise chainline and drivetrain efficiency. The 9170 brake calipers have been tuned to perform optimally in road racing conditions. They feature the Shimano Flat Mount system for a sleek and aerodynamic profile and Ice Tech pads for improved heat dissipation. This kit comes pre-bled and ready to use with shifter, hose, caliper and pads.
This quality-crafted pack of bolts is perfectly made for use with Shimano Dura-Ace FC-7710 track chainset, attaching directly on to its single-speed chainring for a safe and secure performance.
The Dura-Ace 9100 brake has been developed to offer greater tyre clearance for up to 700x28c tyres while still maintaining the aerodynamic advantage of previous editions. It's now also up to 43% stiffer than previous Shimano Dura-Ace rim brakes and offers a linear braking curve for improved feel and function. Plus, the quick release (QR) arm now tucks in toward the main body when closed for improved aerodynamics.
For best shifting performance please take a note of the matching outer ring this inner ring need to be paired with.
Precision engineered Dura-Ace 7710 Bottom bracket for Track Octalink splined system.
With its updated link construction, the Shimano Dura-Ace R9100 front derailleur offers more cable routing options and an integrated cable tensioner. It delivers light, intuitive shifting and has been adapted to also be compatible with race-specific disc brake bikes. The internal toggle mechanism on this Shimano Dura-Ace R9100 front derailleur - braze on version provides greater clearance for larger tyres and it now features a built-in cable tension adjustment bolt meaning there is no need for inline barrel adjusters.