Key Features:Ultegra Shadow design 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 rear derailleur is now the brains of the system with wireless connectivity to the shifters. It acts as the point the system is charged, provides ANT+ connection to 3rd party devises and replaces the handlebar junction,Button on the derailleur for Di2 operations, and LED light denotes synchronized shift mode, setting mode and charge requirements,Sleek appearance with Low profile Shadow design construction reduces risk of damage in a crash,Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift,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,Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts,High tolerance cold forged aluminium link plates and body construction is extremely light and durable,Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting,12-speed E-tube Di2 compatible,Wide gear ratio compatible up to 11-34T.
Now simplified with a single derailleur cage length, the new 12-speed Shimano Ultegra R8150 rear derailleur packs our fastest, most precise shifting into a more approachable option. With our fastest, most accurate shifting, the new 12-speed Ultegra R8150 rear derailleur is more versatile than ever thanks to a single cage length option that is compatible with 28-34T low sprockets.Ultegra Shadow design 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 gearThe rear derailleur is now the brains of the system with wireless connectivity to the shifters. It acts as the point the system is charged, provides ANT+ connection to 3rd party devises and replaces the handlebar junctionButton on the derailleur for Di2 operations, and LED light denotes synchronized shift mode, setting mode and charge requirementsSleek appearance with low profile Shadow design construction reduces risk of damage in a crashProgrammed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shiftThe 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 shiftsDerailleur contains a saver (fuse) function, where the inner structure is protected from strong impactsHigh tolerance cold forged aluminium link plates and body construction is extremely light and durableFour self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting12-speed E-tube Di2 compatibleWide gear ratio compatible up to 11-34T
Digital Integrated Intelligence or Di2: with programmed automatic motion at the touch of a switch the Dura-Ace Di2 rear derailleur is quick, smooth and effortless, making for unmatched drivetrain efficiencyProgrammed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift,Synchronized Shift designed, developed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur,Wireless data network system unit is integrated into mech,The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching,Low profile Shadow derailleur design,Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts,11-30T wide gear ratio capacity will cater for compact setups as well as the traditional road double,Full carbon fibre inner and outer pulley plates enhance rigidity and reduce weight,Titanium B axle bolt for further weight savings,High tolerance cold forged aluminium link plates and body construction is extremely light and durable,Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting,Pulleys are made of tough DuPont Zytel for longer life and less chain noise,Direct mount compatible,11-speed E-tube Di2 compatible,Max front difference: 16T,Total capacity: 35T,Weight is 204 grams.
Key Features:Great value Alivio rear derailleur offering crisp performance on- and off-road for 9-speed drivetrains,Wide link design increases rigidity and service life,Alloy body and outer link leads to lower weight without compromising strength and durability,11-tooth pulleys for reduced pulley wear and chain noise,Advanced light action design with low friction fluorine coated link pivot bushings,For use with 28 to 34 tooth low rear sprockets, total capacity 45 teeth,Top-normal swing design,Compatible with 9-speed Hyperglide sprockets.
Key Features:Wide link Shadow design Dyna-Sys 10-speed top normal Deore rear derailleurDouble servo-panta mechanism for smooth light action shifting,Single tension spring prevents contact with the chainstay resulting in a silent ride,Alloy and steel construction leads to lower weight without compromising strength and durability,Wide link design increases rigidity and service life,Top normal return spring lends to incredibly intuitive operation when combined with Rapid fire shifters,Large 11 tooth pulleys are used for longer life,Two fluorine-coated link bushings for low-friction operation,Dyna-Sys HG-X 10-speed compatible only,47T capacity SGS cage,Compatible with 32-36T low sprocket.
Deore XT 10-speed rear derailleur delivers reliable and precise shifting with a stiff and lightweight designShimano's Direct Mount compatible Rear Derailleur system gives more space around the rear frame dropout resulting in easier rear wheel removal but also allows frame designers to shorten chain stays, increase axel sizes and move suspension pivotsAll-alloy construction leads to lower weight without compromising strength and durabilityFour fluorine-coated link pin bushings make this one of the slickest shifting derailleurs on the trailsHigh rigidity wide outer link braces the pulley body to increase pivot joint rigidity resulting in a crisp shiftImproved cable pull ratio provides a more accurate shift action making the system less prone to contamination and trail chatterShadow design slant angle has been optimized for use with 36T sprocketsDirect cable routing prevents snagging from any trail side hazardsMTB 10-speed compatible onlyDurable sealed bearing pulleys47T capacity SGS cageMax low sprocket: 36TTop normal spring uses the spring to select higher gears.
The Shimano RD-TX800 Tourney TX Rear Derailleur is a fantastic value mountain bike derailleur that s got a light action for easy shifting and over sized pulleys for a wide gear choice that also reduces noise and wear.TX800 mountain bike rear derailleur with light action operation and over-size pulleys for a wide gear choiceOversize 13-tooth tension and guide pulleys to reduce noise and wearTop normal spring for use with Rapidfire shifters8-speed compatibleFor use with 28 to 34 tooth low rear sprockets, total capacity 43 teeth
Key Features:TX800 mountain bike rear derailleur with light action operation and over-size pulleys for a wide gear choice,Oversize 13-tooth tension and guide pulleys to reduce noise and wear,Top normal spring for use with Rapidfire shifters,8-speed compatible,For use with 28 to 34 tooth low rear sprockets, total capacity 43 teeth.
Shimano TY300 6 / 7-speed rear derailleur (direct attachment)SIS rear index shifting,SGS cage can handle wide range gearing and 34 tooth sprockets,13 tooth pulleys offer long service life and less noise.
The Shimano TY300 6 / 7-speed rear derailleur with direct attachment is ideal for road bikes. With smooth slick shifting and noise reduction technology you won't be disappointed. SGS cage can handle wide range gearing and 34 tooth sprockets
Shimano TY300 6 / 7-speed rear derailleur (bracket attachment),SIS rear index shifting,SGS cage can handle wide range gearing and 34 tooth sprockets,13 tooth pulleys offer long service life and less noise.
Shimano TZ500 6-speed rear derailleur (bracket attachment)SIS rear index shifting,GS cage can handle wide range gearing and 28 tooth sprockets,11 tooth pulleys offer long service life and less noise,Wheel type cable guide provides super light shifting action and clean cable routing.