Shimano Deore Rd-M5120 Rear Derailleur
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Shimano Deore Rd-M5120 Rear Derailleur

Product ID: 434505662
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Details

  • Brand
    SHIMANO
  • Color
    Black
  • Material
    Aluminum
  • Item Weight
    203 Grams
  • Case Material
    Aluminium
đź”§42t capacity
⚙️Aluminum build
🚴‍♂️11-speed compatibility

Description

🚴‍♂️ Shift into high gear with Shimano's Deore RD-M5120!

  • COMPACT DESIGN - Lightweight at just 0.35 kg, perfect for competitive cyclists.
  • IMPRESSIVE CAPACITY - Handles up to 42 teeth, ensuring smooth gear transitions.
  • PRECISION ENGINEERING - Crafted from durable aluminum for long-lasting performance.
  • SEAMLESS COMPATIBILITY - Designed for HG-X11 and HG-X 10-speed systems, making upgrades a breeze.
  • VERSATILE GEARING OPTIONS - Supports 2 x 11, 2 x 10, and 1 x 10 configurations for ultimate flexibility.

The Shimano Deore RD-M5120 Rear Derailleur is a high-performance cycling component made from durable aluminum, designed to accommodate a wide range of gearing options and compatible with both 11-speed and 10-speed systems. With a capacity of 42 teeth, it ensures smooth and efficient gear transitions, making it an essential upgrade for serious cyclists.

Specifications

Mounting TypeBraze-On Mount
Number of Teeth42
Product Dimensions8"L x 5"W x 4"H
ManufacturerShimano
UPC192790618548
Item Package Dimensions L x W x H6.3 x 4.72 x 2.32 inches
Package Weight0.35 Kilograms
Item Dimensions LxWxH8 x 5 x 4 inches
Brand NameSHIMANO
Model NameRear Derailleur
Suggested Usersmens
Number of Items1
Part NumberERDM5120SGS
Size10/11 Speed
Sport TypeCycling

I have an older mtn bike with a 10speed deore. Can I run this derailleur with my current shimano 10sp shifter? The shimano deore sl-m610?
will this work on a 10 s road bike with 11x42 (rear)?
Can i use this with my 9 speed shifter and 9 speed cassette?
Will this fit a 11t-46t 10 speed cassette?

Reviews

C**S

Perfect for my restoration project

I put this on my vintage GT mountain bike as part of an updated 1x drivetrain. Works great! It shifts perfectly with very easy set up. Don’t make the mistake I did… I first tried to pair it with a 11-48 cassette but quickly realized it wouldn’t work, looked closer at the description, and saw that it maxes out with a 46t gear. No big deal though. Got an appropriate cassette and it all came together perfectly.

B**E

Seems like a good value

I wanted an inexpensive clutch based derailleur for my bike. This was an easy and affordable upgrade. Everything seems to work well. I just do light riding so I can't speak for the durability under heavy use. But it works well for me. My only gripe is that the instructions are not very clear on how to install if using a derailleur hanger.

D**I

Shifts like butter

Shifts like a xtr at the fraction of the cost just a bit heavier but not noticeable at all.

P**

Adjustable clutch

Typical great Shimano build quality and durability. The clutch is adjustable and can be turned on or off. Shifts perfectly with clutch off. Down shifts can be clunky with the clutch on and adjusted tightly. Only on the hardest hits is there any chain slap and the chain has never come off.

B**5

Works very well, but your frame may cause issues

I bought this as part of an upgrade frenzy on my 1x7 Schwinn Boundary. The original rear hub failed, so needed a new wheelset... which meant I could upgrade to a cassette... which meant I needed a new derailleur... you get the idea. I got this 10s Deore derailleur, a 10s Deore cassette (11-46t) and a 10s Deore shifter. Everything works great together, super fast and smooth shifts, no slips over the 20 miles I have put on it so far... however the derailleur doesn't hang low enough to engage the 2 biggest sprockets. Bought a Wolf Tooth roadlink which should solve the issue, but beware the frame of your bike could necessitate a similar solution. Other than that, highly recommend.

V**C

Buenas

Muy buena. La recomiendo

M**

Excelente producto

RecibĂ­ el producto tolmente original tal cual lo que esperaba.

M**

1x10 46 tooth compatible

I bought this to replace my Shimano XT, which would not work with the 11-46 cassette I wanted to use. This setups works perfect.

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Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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