Integrated shift and brake lever for road groups.
Improved chain control during shifting.
Freewheel mechanism integrated into hub shell.
Shimano Pedaling Dynamics shoe and pedal system.
Indexed front and rear derailleur shifting.
Low-friction dual pivot point brake caliper for road groups.
Cartridge bearings for simplified installation.
HG sprockets on 9-speed cluster.
Low-friction front and rear derailleurs.
Reduced weight sprocket mounting system.
At-a glance gear position indicator.
Precise indexed shifting of rear derailleur.
Shimano
Digital Shifting
Precision ratchet mechanism, OGD, and intuitive push-pull shifting.
Rapidfire
SL™
Low-friction short-stroke shift levers.
EZ-Fire
Plus™
Low-effort shifting action for Acera-X and Altus.
Optical
Gear Display
Gear position indicator on shift lever sets.
Advanced
Light Action
Low-friction designed front and rear derailleurs.
Dual
Control Lever
Shifting and braking functions from the same lever set (road groups).
Rear
SIS®
Indexed shifting
for Rear derailleur.
9-Speed
HG™
HG sprocket cluster with nine gears.
HG™
Sprockets
Computer-designed sprockets for improved down shifting.
Shimano
IG™ System
Integrated drivetrain design for improved up and down shifting.
Aluminum
AlloySprocket Carrier Unit
Aluminum alloy sprocket support reduces weight.
Freehub
Freewheel mechanism integrated into rear hub.
Roller
Clutch Freehub®
Ramp-and-roller clutch improves freewheel performance.
Parallax®
Hub
Oversize hub body and heavy-duty spoke flanges.
Dual
SIS®
Indexed shifting for front and rear derailleurs.
Top-Swing™
Front Derailleur
Low friction design reduces shifting effort.
HyperDrive
Integrated design of chainring and front
derailleur.
HyperDrive-C™
Compact chainrings and sprockets (MTB groups).
4-Arm
Chainring Crankset
Reduced weight with increased rigidity.
Cartridge
Bottom Bracket
One-piece cartridge bearing bottom bracket.
V-Brake™
High-performance MTB cantilever brake design.
Servo-Wave
Action
Allows for adjustable braking power.
Low
Flex Cantilever
Improved cantilever brake reduces stress on frame.
M-System™
Effective braking in wet or dry conditions.
Anti-Vibration
M-System
All-weather braking with squeal suppressing design.
Super
SLR
Low-friction dual-pivot brake caliper.
SPD®
Shimano Pedaling Dynamics shoe and pedal system.
Cartridge
Headset
Cartridge bearings for simplified headset installation.
Easy-Set
Front Derailleur
Bottom bracket mounting plate sets derailleur position.
Differential Plate™
Front Derailleur
Low friction design reduces shifting effort.
Shift anytime at any position
"Light touch" shifting on uphill.
Short-throw shifting action makes changing gears fast and easy under any condition.
Keeps rear derailleur guide pulley a uniform and constant distance from each sprocket.
Inner and outer chain cage plates move with an independent articulated shifting action.
Flange-less hub design looks smart and allows spoke replacement without removing sprockets or disc brake rotors.
Strong and highly controllable stopping power with less fade. Four-finger leverl provides an easy grip.
Hollow crank arm reduces weight without sacrificing strength and rigidity.
Wide-range 9-speed sprocket cluster with close-ratio gearing.
At-a-glance gear position indication.
Keeps brake pad parallel with rim to lessen shoe dive-in, improve braking response and maintain uniform pad wear.
Increased rigidity in the crank arm-bottom bracket interface.
Easy centering of pad-rim clearance.
Easy position adjustment for V-Brake pads.
Hollow pipe billet spindle increases rigidity while reducing weight.
High-performance MTB cantilever brake design.
Low-friction designed front and rear
Computer-designed sprockets for improved down shifting.
Ramp-and-roller clutch improves freewheel performance.
Freewheel mechanism integrated into rear hub.
Indexed shifting for front and rear derailleurs.
Low friction design reduces shifting effort.
Compact chainrings and sprockets (MTB groups).
Reduced weight with increased rigidity.
High-performance MTB cantilever brake design.
Allows for adjustable braking power.
(Shimano Power Change Mechanism)
Front derailleur shifting effort is significantly reduced because the derailleur is moved by energy from the spinning crank.
Cable friction is reduced through the use of a direct cable guide channel casing where it enters the rear derailleur.
Reduces cable friction and shifting effort by eliminating the bend in the cable casing where it enters the rear derailleur.
15-tooth tensioning pulley on the rear derailleur reduces noise and chain friction, lasts longer.
15-tooth tensioning pulley on the rear derailleur reduces noise and chain friction, lasts longer.
Allows desired gear to be selected before pedaling. Also takes up excess cable pressure to prevent damage to me derailleur.
Strong and highly controllable stopping power with less fade. Four-finger lever provides an easy grip.
V-Brake lever features a built-in braking power modulator that absorbs excess lever pressure to prevent inadvertent wheel lock-up.
V-Brake features a braking power modulator that absorbs excess lever pressure to prevent inadvertent wheel lock-up.
Tap-Fire Shifters feature a low-effort push-button and lever action that makes derailleur shifting amazingly easy.
Flange-less hub design looks smart and allows spoke replacement without removing sprockets or disc brake rotors.
CI (Central Information) Deck provides a large easy-to-read display of front and rear derailleur positions.
Derailleurs are shifted by rotating a collar on the bar grip.
MegaRange sprockets feature a super-low 34-tooth gear that makes it easier to climb steep hills.
Increased rigidity in the crank arm-bottom bracket interface.