You might not be looking for the lightest equipment there is, but you should never have to sacrifice performance. Molded from the same DNA as XTR, DEORE XT and SLX, the new M4100 series delivers Shimano’s proven 10-speed technologies at DEORE level.
Scope of delivery – Shimano DEORE M4100 2×10-speed Upgrade-Kit 11-42
- 1 x Shimano DEORE SL-M5100/M4100 2×10-speed Shift Lever Set incl. gear wires
- 1 x Shimano DEORE FD-M4100 10-speed Front Derailleur Side-Swing Clamp
- 1 x Shimano DEORE RD-M4120 2×10-speed Rear Derailleur SGS
- 1 x Shimano DEORE CS-M4100 10-speed Cassette 11-42
- 1 x Shimano CN-HG54 10-speed Chain 116 Links
Shimano DEORE SL-M5100/M4100 2×10-speed Shift Lever Set
The Shimano DEORE SL-M4100 10-speed Rapidfire Plus shift lever features a lightweight, ergonomic and compact design. In addition to the shifting behavior, the performance also increases. With 20 % quicker lever access time and 35 % less force. The left SL-M5100 Rapidfire Plus Mono shifter for 2-speed systems, on the other hand, is a completely new development, with only one lever for shifting to the large and small chainrings.
The DEORE 2-speed left-side shifter benefits from the same technologies as XTR, DEORE XT and SLX; I-Spec EV. This offers you greater ergonomic adjustments so you can tailor your handlebar con-trols much more to your liking.
The DEORE 10-speed right-side shifter benefits from the same technologies as XTR, DEORE XT and SLX; I-Spec EV. This offers you greater ergonomic adjustments so you can tailor your handlebar con-trols much more to your liking. Together with the speed of RAPIDFIRE PLUS and a TWO-WAY RE-LEASE feature you can shift up and down the 10 gears of your cassette faster than ever before.
Features
- 20% quicker lever access time
- Compact design and lightweight
- Quicker lever access and light operation force maintains rider concentration
- Greater flexibility and action-optimized cockpit layout
- 2-WAY RELEASE for instant push/pull movements
Product features
- Use: MTB
- Group: DEORE M4100
- Model: SL-M5100 / SL-M4100
- Shifter Type: Rapidfire Plus Mono / Rapidfire Plus
- Mount: left / right
- Gear front: 2-speed
- Gear rear: 10-speed
- Optical Gear Display: Yes, right
- Instant Release: No
- Multi Release: No
- 2-Way Release: Yes
- Cable adjust: Yes
Mounting
- Clamp
Material
- Main lever body: Aluminum Painted
- Lever body: Aluminium, GFRP
Shimano DEORE FD-M4100 2×10-speed Front Derailleur Side-Swing Clamp
The elegantl DEORE FD-M4100 10-speed front derailleur from Shimano in the middle clamp position (FD-M4100-M). Shift performance is improved by side swing technology, which provides 15 mm more space between seat tube and tyre.
Features
- Smooth shifting by Side-Swing mechanism
- Increased tire clearance of 15mm allows for shorter chainstays
- Greater tire clearance – Compatible with 2.3-inch tire on wider rims
- Adapt 48.8mm, 51.8mm chainline
- For DEORE FC-M4100-2 10-speed Crank 36/26
Product features
- Use: MTB
- Group: DEORE M4100
- Model: FD-M4100
- Cable route type: Front Pull
- Gear front: 2-speed
- Gear rear: 10-speed
- Top gear teeth: 36T
- Total capacity: 10T
- Compatible Chain: HG-X 10-speed
- Chain stay angle: 64-69°
- Chain line: 48.8mm (142mm) / 51.8mm (148mm Boost)
Mounting
- Clamp FD-M4100-M (Clamp 34.9mm with Adapter 28.6mm, 31.8mm)
Material
- Aluminum
- Stainless steel
- Steel
Shimano DEORE RD-M4120 2×10-speed Rear Derailleur
The Shimano DEORE RD-M4120 2×10/11-speed rear derailleur for 11-42 cassette features an elegant yet aggressive angled design and an attractive anodised aluminium surface.
Features
- Shadow RD+ For optimal chain retention
- RD-M4120-SGS
- 42T max cog size with 2×10-speed and 2×11-speed 11-42-teeth cassette
Product features
- Use: MTB
- Group: SLX M4100
- Model: RD-M4120
- Mount: Direct Mount
- Technology: Shadow RD+
- Gradations: SGS-Type 2×10-speed (11-42) / 2×11-speed (11-42)
- Compatible chain: HG-X 10-speed / 11-speed
- Max. teeth large sprocket: 42T
- Min. teeth large sprocket: 42T
- Max. teeth small sprocket: 11T
- Min. teeth small sprocket: 11T
- Max. Front Difference: 10T
- Total Capacity: 41T
Pulley cage
- Type-SGS long
Material
- Aluminum
- GFRP
- Stainless steel
- Steel
Shimano DEORE CS-M4100 10-speed Cassette 11-42
The Shimano CS-M4100 is the suitable cassette for the new DEORE 10-speed group. The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. The HG cassette sprocket, which was developed for 10-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.
Features
- Ride anywhere with smooth and precise HG shifting
- 10-speed cassette sprocket
- 11-42T close gear step
Product features
- Use: MTB
- Group: DEORE M4100
- Model: CS-M4100
- Type: HG
- Gear: 2×10-speed
- Compatible chain: HG-X 10-speed
Gradation
- 11-42 (11-13-15-18-21-24-28-32-37-42 teeth)
Material
- Steel, Nickel plated
Shimano CN-HG54 10-speed Chain 116 Links
The directional 10-speed HG-X chain specifically for mountain bikes is the next evolutionary step in shifting technology. This chain stays smooth, saves weight and improves overall system performance. HG-X chain with directional design: The right side is optimized for switching the front, the left for rear. For use with: XTR/DEORE XT/SLX.
Product features
- Use: MTB
- Series: Deore Dyna-Sys
- Type: HG-X 10-speed
- Inner plate: grey coated
- Outer plate: brown coated
- Connector: Connecting Pin
Links
- 116
Technologies
Rapidfire Plus
Rapidfire Plus Mono
RAPIDFIRE PLUS MONO LEVER provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever.
Benefits & Features
- Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration.
- Front double shifting with natural finger positioning supports intuitive shifting operation.
- Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions.
RAPIDFIRE PLUS MONO LEVER’s simple and intuitive lever operation allows riders to shift both up and down with a single lever. It supports front double shifting with natural finger positioning and intuitive shifting operation while maintaining a solid grip on the handlebar. 2WAY-RELEASE functionality delivers instantaneous push & pull movements to help riders respond quickly and accurately to rapidly changing conditions.
I-Spec-EV
I-SPEC EV creates a clean and action-optimized cockpit that provides greater focus and flexibility for a wider range of riders.
Benefits & Features
- Wider adjustment range allows riders of various styles, preferences and body styles to adjust to the optimal position.
- Ergonomic design, quicker lever access, and light operation enhance rider comfort and concentration.
With its wider adjustment range, I-SPEC EV levers can be adjusted to the optimal position to match a wider range of riding styles (ENDURO/XC/etc.), rider preferences and rider anatomies (hand and arm alignment). I-SPEC EV increases brake lever rigidity by moving the brake clamp position inward to create an extra point of contact between the bar and the lever. This additional bracing drastically increases bike control and braking engagement while maintaining space between the clamp and support point for other handlebar accessories.
Side-Swing




















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