SHIMANO RD-T4000 bicycle rear derailleur 9-speed, black and silver

SHIMANO RD-M4000 rear derailleur dedicated to support 9-speed drives. The product is aimed at cyclists who prefer road and trekking. The derailleur is equipped with a cable tension adjusting screw for easy indexing adjustment. The derailleur uses 11-tooth wheels in which the pins are covered with fluorine for even smoother rotation. The wheels are bolted to the trolley with countersunk hexagonal screws. The wide-hinge design increases stiffness and allows for accurate shifting.

Specification:

• Product group: Alivio
• Model: RD-M4000
• Supported number of gears: 9
• Bottom Compatibility: 11T - 12T
• Top Compatibility: 28T - 34T
• Total capacity: 45T
• Cooperation with Megarange: YES
• Cable adjustment bolt: YES
• Derailleur design: Top Normal
• Cooperation with SIS: YES
• Average product weight: 271 g

Technologies used:

Front and Rear DUAL SIS Indexed Gear Shifting

• System components such as the indexing mechanism built into the shifting lever, the frictionless SIS rear index shifting cable and the free-running rear derailleur make up the SHIMANO INDEX SYSTEM. The rear SIS indexed shifting system is also used in the front derailleur, making shifting at the front easier and more comfortable.

HyperGlide laces

• The specially designed HYPERGLIDE sprockets feature distinctive shifting ramps and tooth profiles for better chain control during shifting. HG sprockets guide the chain quickly and directly to the next sprocket without overloading. Conventional sprockets cause the chain to rise and pass over the sprocket teeth before selecting the sprocket.

Top Normal

• The top normal rear derailleurs are traditional spring-loaded derailleurs. RAPIDFIRE Plus users prefer the faster response time of the top normal rear derailleurs as this allows faster downshifts. Cyclists for whom quick response is more important appreciate the ability to downshift with the strongest finger, i.e. the thumb.

MEGARANGE gear ratio

• The 34-tooth MegaRange crown provides a super-low gear ratio that allows for fatigue-free pedaling up the steepest slopes.

MEGA-9 power unit

• The 9-speed sprocket cassette gives a close gear ratio without compromising the gear range.

MEGA-9 LITE

• This system has three features: Optimum gear ratio for each wheel size - the larger the wheel, the greater the range of cassettes needed to maintain light pedaling. Advanced front shifting system - gear combinations adapted to each wheel size to reduce the number of corrective rear shift shifts with a small front shift. Improved tire clearance for increased maneuverability - redesigned front derailleur that allows the wheel track in the frame to be reduced.