AliExpress.io
Deore M4100 1x10 Speed Bike Derailleurs M4120 Shifter With Crank VG X10 Chain Flywheel 42T 46T 50T Cassette 10V MTB Groupset

Deore M4100 1x10 Speed Bike Derailleurs M4120 Shifter With Crank VG X10 Chain Flywheel 42T 46T 50T Cassette 10V MTB Groupset

536+ sold
£110.19£196.77
44% OFF
Buy on AliExpress

You will be redirected to AliExpress to complete your purchase

Specifications

Brand Name
NONE
Origin
MY(Origin)
High-concerned chemical
None
Type
Rear Derailleur
Components
Derailleurs
Gears
10 Speed
Model Number
Deore RD M4120 + SL-4100 Shifter
Total Capacity
36/40/42/46/50T
Derailleur Groupset Type
Mechanical Derailleur system
Material
Alloy

Product Description

Deore M4100 Shifter

DEORE - RAPIDFIRE PLUS - Right Shift Lever - Clamp Band - 10-speed

-Quicker lever access and light operation
Shifts max. 3 gears at a time (Main lever)
OPTICAL GEAR DISPLAY for easy visible gear position

RD-M4120-SGS

-Stable drivetrain on the trail
-Low-profile design avoids damage from rocks
Chain stabilizer reduces chain drop, slap and noise
Silent drivetrain in all gear positions
Decreased rear derailleur and chain tension in low gear
Max. low sprocket
42T (2x11/10-speed), 46T (1x10-speed)

VG 10-Speed Bike Chain

VG 10speed Chain

Color:Silver
Length:116Links
Weight: 264g

Bicycle Crankset

Brand: RACEWORK
Model: XT
Product name:Hollow integrated crank
Colour: Shiny black
Material: Aluminum Alloy 6061-T6
Number of teeth: 9-11 speed compatible
Suitable for: mountain bike
Crank length:170/175MM
Number of teeth: 32/34/36/38/40T
Weight:About 653g(Only crank)
Process: One-piece forging, anode sandblasting

SUGEK Cassette

Brand: SUGEK
Color: Silver
Number of Speeds: 10 Speed
Largest Sprocket: 50T
Smallest Sprocket: 11T
Material: Aluminum alloy
Compatible Bike Type: Mountain Bike/MTB

11-36T: 11-13-15-17-19-21-24-28-32-36T
11-40T: 11-13-15-18-21-24-28-32-36-40T
11-42T: 11-13-15-18-21-24-28-32-36-42T
11-46T: 11-13-16-20-24-28-32-36-40-46T
11-50T: 11-13-16-20-24-28-32-36-42-50T


Pros & Cons

Pros

  • Complete 10-speed MTB groupset
  • Stable derailleur with low-profile design
  • Optical gear display on shifter
  • Alloy construction durable
  • Shifts max 3 gears at once

Cons

  • Mechanical only, no electronic
  • Specific Deore M4100 compatibility
  • Requires bike tuning for optimal use
  • Origin may vary shipping

Common Questions

What speed and components are in this Deore M4100 groupset?

1x10 speed: RD M4120 rear derailleur, SL-4100 shifter, crank, chain, 42T/46T/50T cassette.

What material and capacity for the MTB derailleur?

Alloy material, total capacity 36/40/42/46/50T.

Is this compatible with 10-speed MTB bikes?

Yes, mechanical derailleur system for 10V MTB groupset.

Features of the shifter and rear derailleur?

Rapidfire Plus shifter with optical gear display; stable low-profile RD-M4120-SGS.

Origin and shipping for this bike groupset?

Origin MY (Malaysia); components sold as set.

Product information last updated on December 5, 2025