---
product_id: 255919710
title: "Deore M5100"
brand: "jgbike"
price: "HK$2391"
currency: HKD
in_stock: null
reviews_count: 5
category: "J Gbike"
url: https://www.desertcart.hk/products/255919710-deore-m5100
store_origin: HK
region: Hong Kong
---

# Easy standard installation 11-51T wide gear range 11-speed precision shifting Deore M5100

**Brand:** jgbike
**Price:** HK$2391
**Availability:** ❌ Out of Stock

## Summary

> 🚵‍♂️ Shift Up Your Ride—Dominate Every Trail with Precision and Power!

## Quick Answers

- **What is this?** Deore M5100 by jgbike
- **How much does it cost?** HK$2391 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/255919710-deore-m5100)

## Best For

- jgbike enthusiasts

## Why This Product

- Trusted jgbike brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug-and-Play Upgrade:** Standardized design means quick, hassle-free installation—get your drivetrain race-ready without the wait or guesswork.
- • **Trusted Brand Synergy:** Built with Shimano, KMC, and Sunrace components, this groupset ensures premium quality and smooth operation, making it the smart choice for serious riders.
- • **Epic Wide-Range Cassette:** Tackle steep climbs and fast descents effortlessly with the expansive 11-51T cassette, giving you ultimate control over your ride.
- • **Seamless 11-Speed Shifting:** Experience crisp, reliable gear changes with Shimano’s proven M5100 shifters and derailleur—perfect for conquering any trail.
- • **Cost-Effective Performance Boost:** Upgrade from 8, 9, or 10-speed setups without breaking the bank, combining Shimano’s tech with a durable KMC X11 chain for long-lasting reliability.

## Overview

The JGbike Compatible MTB Groupset is a comprehensive 11-speed drivetrain upgrade kit featuring Shimano M5100 shifters and derailleur, a wide-range 11-51T cassette, and a durable KMC X11 chain. Designed for easy installation and compatibility with older 8-10 speed bikes, it delivers smooth, reliable shifting and enhanced climbing performance at an affordable price point.

## Description

11 Speed Mountain Bike Set of 4

Review: I bought this for my Son's bike to do some Christmas upgrades. He is riding an older bike of mine that was 3x9, then single speed, now 1x11. It was nice that almost everything needed is in the box. I did purchase a chainring separately. I was on a Christmas time crunch, but looking back I would have price shopped a bit more, as it seems most online bike stores would be cheaper for all SLX parts. But a lot of bike e-tailers are out of certain parts, and this was ready to go kit. I will say that we got an Oval 32 chainring which is probably a bit small for 26 wheels and his majority road riding. We will probably purchase a 36 front to get a little more out of the back range. Also, we did not know to use an extender that 1 reviewer mentioned. I need to do more research on this for older 26 bikes. It does seem to work, but not sure if it is optimal without the extender.
Review: I will be buying another of these kits. Installed without issue and took very little adjustment to dial it in. Shifts well under power. I have zero complaints with this groupset.

## Features

- 🚵 BEST VALUE: This is the 2020 new released Deore 1x11 speed groupset selection combined with the best Derailleur RD-M5100-SGS & Shifter SL-M5100-R,CS-M5100 11-51T HG standard cassette from Shimano, and the cost effective chain X11 126L from KMC;
- 🚵 COMPATIBLE: This is the latest cost effective wide ratio upgrade groupset without going to 12 speed for old 8speed 9speed 10speed, You may also find the Chainrings, brakes, pedals, etc from our store front. The great combination would improve your bike climbing performance and make your life more easier;
- 🚵 SUPER ESAY INSTALL: It’s a standard models, including all for get your driventain running;
- 🚵 WISE CHOICE: Deore M5100 has a capable wide gear ratio 11-51T by default that delivers a smoother gear step in all riding conditions. Proven Shimano smooth and crisp shifting action and an efficient front driving gear combined with wider range cassette will tackle all the ups and downs your ride will throw at you with Shimano's proven technology;
- 🚵 ADVICE: they said this is the best upgrade/purchases ever made, anyone with a current 8 speed ,9 speed or 10 speed should try this. More color option is coming, please always use trusted brands parts for safety, this is affortable.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CZ4LGZF |
| Batteries Included? | No |
| Best Sellers Rank | #98,123 in Sporting Goods ( See Top 100 in Sporting Goods ) #322 in Bike Drivetrain Components |
| Bike Type | All Mountain |
| Color | Shimano M5100+KMC 126L |
| Customer Reviews | 4.4 4.4 out of 5 stars (224) |
| Date First Available | 1 January 2024 |
| Item model number | M5100-CSM5100-51T |
| Manufacturer | JGbike |
| Material Type | Aluminum |
| Package Dimensions | 21.8 x 21.6 x 14.2 cm; 1.62 kg |
| Size | 11-51T Silver |
| Sport | Cycling |

## Product Details

- **Brand:** JGbike
- **Colour:** Shimano M5100+KMC 126L
- **Item weight:** 1.62 Kilograms
- **Material:** Aluminum
- **Mounting type:** Clamp-On Mount

## Images

![Deore M5100 - Image 1](https://m.media-amazon.com/images/I/71eA1Y4kwNL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: i have a 7 by 3 21 gear drivetrain right now. what do i have to do to figure out if this will work on my bike?**
A: The cassette will not fit on a 7-speed hub. Replace the entire wheel with something compatible. Make sure the axle spacing matches your frame. You will also need to make this a 1 x 11. If you want to do a 2x11, get the option with the 11-42 tooth cassette. If you opt for the 2x11 , I would recommend the removal of the outer chainring, replace it with a chain guard to take up the outer step on the spider and protect your calf. This will give you a 32x11 top gear and a 22x46 low gear (I am assuming your crankset is a 22/32/42). If you opt for the 1x, you should just get a new crankset. An inexpensive one with a square taper should do the trick. I would suggest a 28 to 32 tooth front sprocket. Your choice depends on the terrain you plan to ride and your fitness. I noticed a response that says you need an XD adapter. I do not think this is the case. Get a Shimano 10/11/12 compatible hub and this cassette should slide right on.

**Q: sirve para reemplazar 3x10 en fuji nevada 1.1 2013?**
A: Yes, it can.

**Q: Does this work with a 2004 Santa Cruz Heckler; the ones with the weird derailleur hangers?**
A: yes, it is an easy upgrade

**Q: What chain do you recommend for this cassette ?**
A: must use any 11 speed chain and 116L long. thanks. KMC/shimano/sram whatever,

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by B***E on 28 December 2020*

I bought this for my Son's bike to do some Christmas upgrades. He is riding an older bike of mine that was 3x9, then single speed, now 1x11. It was nice that almost everything needed is in the box. I did purchase a chainring separately. I was on a Christmas time crunch, but looking back I would have price shopped a bit more, as it seems most online bike stores would be cheaper for all SLX parts. But a lot of bike e-tailers are out of certain parts, and this was ready to go kit. I will say that we got an Oval 32 chainring which is probably a bit small for 26 wheels and his majority road riding. We will probably purchase a 36 front to get a little more out of the back range. Also, we did not know to use an extender that 1 reviewer mentioned. I need to do more research on this for older 26 bikes. It does seem to work, but not sure if it is optimal without the extender.

### ⭐⭐⭐⭐⭐ Review
*by J***N on 30 January 2023*

I will be buying another of these kits. Installed without issue and took very little adjustment to dial it in. Shifts well under power. I have zero complaints with this groupset.

### ⭐⭐⭐⭐⭐ Review
*by S***. on 12 August 2021*

Excellent product and quick shipping

## Frequently Bought Together

- JGbike 11S MTB groupset Compatible with Shimano Deore M5100 11 Speed shifters & Rear Derailleur, KMC X11 Chain,Sunrace 11-51T CS-M5100 Cassette
- CYSKY Bike Crank Arm Set Mountain Bike Crank Arm Set 170mm 104 BCD with Bottom Bracket Kit and Chainring Bolts for MTB BMX Road Bicyle, Compatible with Shimano, FSA, Gaint (Black/Red)
- YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-21*