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Glossary
Home  > Tech Support  > Glossary
Glossary
1. 15-Tooth MEGAPULLEY
2. 9-Speed HG sprockets
3. 9-Speed RAPIDFIRE
4. Cartridge Bearing Headset
5. Cartridge Bottom Bracket
6. Center-Lock System
7. CI-DECK
8. Disc Brakes
9. Double Servo Panta Mechanism
10. Dual Control Lever
11. DUAL SIS
12. Front Hub roller Brake Modulator
13. HG Sprockets
14. HOLLOWTECH II Crankset
15. Integrated POWER MODULATOR
16. Light Alloy Sprocket Carrier
17. Linear Action Rear Derailleur
18. LINKGLIDE Sprocket
19. MEGA-9 Sprockets
20. MEGARANGE
21. Mono-Body Caliper
22. OCTALINK
23. Optical Gear Display
24. Parallel-push linkage
25. Pre-Select Mechanism
26. RAPID RISE Rear Derailleur
27. Rear SIS
28. REVOSHIFT
29. Roller Clutch FREEHUB
30. SHIMANO HYPERDRIVE
31. SHIMANO M-SYSTEM
32. SMARTCAGE
33. SPCM
34. SPD
35. SPD-R
36. SPD-SL
37. STI Dual Control Lever
38. Super SLR
39. TAP FIRE Shifters
40. TOP SWING Front Derailleur
41. V-BRAKE & SERVO WAVE Lever Action
42. V-BRAKE POWER MODULATOR
43. Wheel-Type Cable Guide Pulley
1. 15-Tooth MEGAPULLEY
15-Tooth MEGAPULLEY: 15-tooth pulley on the rear derailleur reduces noise, chain friction and lasts longer. (Nexave C900 / C600 / C500 / C050)
2. 9-Speed HG sprockets
9-Speed HG sprockets: Chamfered shift ramps and special tooth profiles get maximum shifting performance out of the narrow 9-speed chains.
3. 9-Speed RAPIDFIRE
9-Speed RAPIDFIRE: Short-throw shifting action makes changing gears fast and east under and condition. (XTR / XT / LX / Deore)
4. Cartridge Bearing Headset
Cartridge Bearing Headset: Installs easily and compensates for frame head tubes that haven't been milled parallel.
5. Cartridge Bottom Bracket
Cartridge Bottom Bracket: One-piece cassette bearing bottom bracket helps keep out mud, dirt and water.
6. Center-Lock System
Center-Lock System: The rotor mounts to the hub quickly through a spline and lock ring mechanism. This feature is sure to be popular with racers when packing and traveling with their bikes and with mechanics who won't be dealing with stripped out or broken mounting bolts.
7. CI-DECK
CI-DECK: CI (Central Information) Deck provides a large easy-to-read display of front and rear derailleur positions. (C201/C101/C050)
8. Disc Brakes
Disc Brakes: Usually using a hydraulic medium, this type of brake is strong and has a high level of controllable stopping power with less fade. 2 & 4-finger levers provide for an easy grip.
9. Double Servo Panta Mechanism
Double Servo Panta Mechanism: Keeps rear derailleur guide pulley a uniform and constant distance from each sprocket.
10. Dual Control Lever
Dual Control Lever: For mountain bikes, the dual control shift lever sets a new standard for shifting ease and flexibility. It lets you shift gears up or down, regardless of your hand position or the handlebar.
11. DUAL SIS
DUAL SIS: Indexed shifting for front and rear derailleur.
12. Front Hub roller Brake Modulator
Front Hub roller Brake Modulator: Roller brake compatible front hub features a built-in braking power modulator that prevents excessive brake pressure. (Nexave C500 / T400 / T300 / Nexus).
13. HG Sprockets
HG Sprockets: Shift ramps and tooth profiles provide superior chain control for fast and precise rear derailleur shifting.
14. HOLLOWTECH II Crankset
HOLLOWTECH II Crankset: Integrated bottom bracket and crankset design reduces the number of parts, significantly cuts down weight and increases rigidity. Hollowtech II designs allow the bottom bracket bearings to be spaced more widely. This dramatically changes the loads on the bearings to increase rigidity and bearing service life.
15. Integrated POWER MODULATOR
Integrated POWER MODULATOR: V-Brake lever features a built-in braking power modulator that absorbs excess lever pressure to prevent inadvertent wheel lock-up. (Nexave C900 / C600)
16. Light Alloy Sprocket Carrier
Light Alloy Sprocket Carrier: Supports the sprockets near their outer perimeter to reduce weight and increased stiffness for improved shifting response.
17. Linear Action Rear Derailleur
Linear Action Rear Derailleur: Cable friction is reduced through the use of a direct cable guide channel and ball bearing guide pulley that eliminate the need for an outer casing. (Nexave C900/C600/C500)
18. LINKGLIDE Sprocket
LINKGLIDE Sprocket: Since the bi-directional gear shifting in changing up and down is quite smooth and the shock to be very little, delightful riding is realized.
19. MEGA-9 Sprockets
MEGA-9 Sprockets: Wide-range 9-speed sprocket cluster with close-ratio gearing.
20. MEGARANGE
MEGARANGE: MegaRange sprockets feature a super low 34-tooth gear that makes it easier to climb steep hills. (Nexave C900 / C600 / T400 / T300 / C201 / C101 / C050 / C030)
21. Mono-Body Caliper
Mono-Body Caliper: The dual piston is a forged one-piece "mono-body" design that eliminates the need for heavy assembly bolts that reduces weight and increases rigidity.
22. OCTALINK
OCTALINK: Eight splines on the oversized hollow bottom bracket spindle mate with the crank arm to form a stronger more rigid interface.
23. Optical Gear Display
Optical Gear Display: At-a-glance gear position indicator.
24. Parallel-push linkage
Parallel-push linkage: Keeps brake pads parallel with rim to lesson shoe dive-in, improve braking response and maintain uniform pad wear. (XTR / XT / LX)
25. Pre-Select Mechanism
Pre-Select Mechanism: Allows desired gear to be selected before pedaling. Also takes up excess cable pressure to prevent damage to the derailleur. . (Nexave C900 / C600 / T400 / T300 / C201 / C101 / C050)
26. RAPID RISE Rear Derailleur
RAPID RISE Rear Derailleur: Extension coils spring put the derailleur in the low gear direction for easier down-shifting.
27. Rear SIS
Rear SIS: Precise indexed shifting of rear derailleur.
28. REVOSHIFT
REVOSHIFT: Derailleurs are shifted by rotating a collar on the bar grip. (C201 / C101 / C050 / Nexus)
29. Roller Clutch FREEHUB
Roller Clutch FREEHUB: Roller and ramp mechanisms are used instead of conventional pawls and ratchet wheels. Provides for faster engagement and silent freewheeling. (Nexave T400 / T300)
30. SHIMANO HYPERDRIVE
SHIMANO HYPERDRIVE: Integrated design of SGX chainrings, chain, and front derailleur to deliver precise and dependable shifting action.
31. SHIMANO M-SYSTEM
SHIMANO M-SYSTEM: Special pad formulation maintains braking power in wet environments.
32. SMARTCAGE
SMARTCAGE: 15-tooth tensioning pulley and 13T guide pulley shorten the rear derailleur pulley cage for more ground clearance. Pulleys last longer and the chain runs more quietly.
33. SPCM
SPCM (Shimano Power Change Mechanism): Front derailleur shifting effort is significantly reduced because the derailleur is moved by energy from the spinning crank. (Nexave C900 / C600).
34. SPD
SPD (Shimano Pedaling Dynamics): SPD is an integrated shoe and pedal system that provides the pedaling performance of cleated cycling shoes along with the ability to walk safely and comfortably off the bike.
35. SPD-R
SPD-R: Racing shoe and pedal system engineered to improve pedaling stability and efficiency.
36. SPD-SL
SPD-SL: SPD-SL uses a large a low profile cleat and binding mechanism that creates a highly stable interface between the shoe and pedal in a super lightweight design
37. STI Dual Control Lever
STI Dual Control Lever: Allows shifting and braking from a single lever without taking hands off the bars. (Road)
38. Super SLR
Super SLR: Friction-reducing mechanism in the lever, cable and Dual-Pivot caliper increase braking power and improving brake response. Featured in all road groups.
39. TAP FIRE Shifters
TAP FIRE shifters: Tap-Fire shifters feature a low-effort push-button and lever action that makes derailleur shifting amazingly easy. (Nexave C900 / C600 / C500 / T400 / T300)
40. TOP SWING Front Derailleur
TOP SWING front derailleur: Simple linkage reduces friction to reduce shifting efforts.
41. V-BRAKE & SERVO WAVE Lever Action
V-BRAKE & SERVO WAVE Lever Action: Awesome stopping power under fingertip control. Servo Wave lever action delivers quicker response and enhanced control.
42. V-BRAKE POWER MODULATOR
V-BRAKE POWER MODULATOR: V-Brake features a piwer modulator that absorbs excess lever pressure to make braknig easier to control. (Nexave T400 / T300)
43. Wheel-Type Cable Guide Pulley
Wheel-Type Cable Guide Pulley: Reduces cable friction and shifting efforts by eliminating the bend in the cable casing where it enters the rear derailleur. (Nexave T400 / C201 / C101 / C050)
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