---
product_id: 323355991
title: "DISC Brake Assembled Set/J-kit,DEORE XT, BL-M8100(R), BR-M8100(R), W/O Adapter, Metal PAD(W/FIN), 1700MM Hose(SM-BH90-SB M Black), W/CONNECTER Insert"
brand: "shimano"
price: "R$2684"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/323355991-disc-brake-assembled-set-j-kit-deore-xt-bl-m8100
store_origin: BR
region: Brazil
---

# 2-piston hydraulic caliper for precise stopping Aluminum lever with adjustable reach & free throw Post mount design for seamless bike integration DISC Brake Assembled Set/J-kit,DEORE XT, BL-M8100(R), BR-M8100(R), W/O Adapter, Metal PAD(W/FIN), 1700MM Hose(SM-BH90-SB M Black), W/CONNECTER Insert

**Brand:** shimano
**Price:** R$2684
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Stop on a dime, ride with confidence!

## Quick Answers

- **What is this?** DISC Brake Assembled Set/J-kit,DEORE XT, BL-M8100(R), BR-M8100(R), W/O Adapter, Metal PAD(W/FIN), 1700MM Hose(SM-BH90-SB M Black), W/CONNECTER Insert by shimano
- **How much does it cost?** R$2684 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/323355991-disc-brake-assembled-set-j-kit-deore-xt-bl-m8100)

## Best For

- shimano enthusiasts

## Why This Product

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

## Key Features

- • **Customizable Control:** Adjust lever reach and free throw to fit your unique riding style.
- • **Lightweight Durability:** Crafted from premium aluminum for strength without the bulk.
- • **Sleek, Stealthy Design:** Matte black powder-coated finish that complements any bike.
- • **Effortless Installation:** Comes with all hardware for a quick, hassle-free setup.
- • **Precision Hydraulic Power:** Experience smooth, reliable braking with advanced 2-piston calipers.

## Overview

The SHIMANOXt Br-M8100 is a right/rear hydraulic disc brake featuring a lightweight aluminum lever with adjustable reach and free throw, a powerful 2-piston caliper, and a post mount design. Engineered for precise braking performance and easy installation, it’s the perfect upgrade for serious cyclists seeking reliable stopping power and sleek aesthetics.

## Description

SHIMANOXt Br-M8100 Disc Brake Black, Right/Rear

## Features

- Lever: aluminum
- Lever Adjustability: reach, free throw
- Actuation: hydraulic
- Caliper: 2-piston
- Mount Type: post

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Aluminum |
| Brand | SHIMANO |
| Color | Black |
| Exterior Finish | Aluminum |
| Specific Uses For Product | Bicycle |
| Special Feature | Easy to Install |
| Included Components | Installation Hardware |
| Item Weight | 8 ounces |
| Handle Material | Aluminum |
| Hand Orientation | Right |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | Shimano |
| UPC | 192790445939 |
| Part Number | IM8100JRRXNA170 |
| Product Dimensions | 10 x 10 x 3 inches |
| Item model number | Shimano |
| Is Discontinued By Manufacturer | No |
| Size | Right/Rear |
| Finish | Powder Coated |
| Item Package Quantity | 1 |
| Number Of Pieces | 2 |
| Special Features | Easy to Install |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Brand:** SHIMANO
- **Color:** Black
- **Exterior Finish:** Aluminum
- **Specific Uses For Product:** Bicycle

## Images

![DISC Brake Assembled Set/J-kit,DEORE XT, BL-M8100(R), BR-M8100(R), W/O Adapter, Metal PAD(W/FIN), 1700MM Hose(SM-BH90-SB M Black), W/CONNECTER Insert - Image 1](https://m.media-amazon.com/images/I/61q-I8TeWgL.jpg)
![DISC Brake Assembled Set/J-kit,DEORE XT, BL-M8100(R), BR-M8100(R), W/O Adapter, Metal PAD(W/FIN), 1700MM Hose(SM-BH90-SB M Black), W/CONNECTER Insert - Image 2](https://m.media-amazon.com/images/I/51ZNMvPRDaL.jpg)
![DISC Brake Assembled Set/J-kit,DEORE XT, BL-M8100(R), BR-M8100(R), W/O Adapter, Metal PAD(W/FIN), 1700MM Hose(SM-BH90-SB M Black), W/CONNECTER Insert - Image 3](https://m.media-amazon.com/images/I/61MMKEwYE7L.jpg)
![DISC Brake Assembled Set/J-kit,DEORE XT, BL-M8100(R), BR-M8100(R), W/O Adapter, Metal PAD(W/FIN), 1700MM Hose(SM-BH90-SB M Black), W/CONNECTER Insert - Image 4](https://m.media-amazon.com/images/I/61uB1B0-EIS.jpg)

## Questions & Answers

**Q: Will this fit to any mtb? i have schwinn ascension mtb**
A: These will fit, assuming you already have the interface mount (mentioned in the ad).  You may need to shorten the hoses.  Check YouTube for an easy method that doesn't require bleeding.

**Q: Does this item include the caliper?  Picture is just of levers and no mention of "full assembly" in title.**
A: I purchased in April 2022 and it did include the 2 piston caliper and the pre-bled brake hose.

**Q: What size rotors do these work with?**
A: SE Bike 27.5 in bike

**Q: Will it fit an old trek 8000, got a bad rear Juicy7?**
A: No ... I just slipped into the same trap. You should be able to use the M8000 but not the M8100. The brake cylinders on the M8100 is offset and interferes with anything but the newest iSpec shifters. I’m returning mine to get M8000 which should work for me.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great price and service
*by E***. on April 14, 2025*

Product shipped in OEM Shimano box. New as advertised. Packaged carefully and came in perfect condition all the way from Hong Kong. Pleased with the price and quality of the service.

### ⭐⭐⭐⭐⭐ Recomendados
*by I***Z on March 14, 2025*

Originales y de muy buena calidad, no esperaba menos, vendedor rápido en el despacho. Recomendado.

### ⭐⭐⭐⭐⭐ Great product with all accesories
*by M***A on February 27, 2024*

I was worried about the pads, but it comes with vent pads, i think its a Shimano J03A (resin ones)

## Frequently Bought Together

- SHIMANO Xt Br-M8100 Disc Brake Black, Right/Rear
- SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black
- Shimano XT SL-M8100-IL Right I-Spec EV 12-Speed Shifter, Black

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**Shop now:** [https://www.desertcart.com.br/products/323355991-disc-brake-assembled-set-j-kit-deore-xt-bl-m8100](https://www.desertcart.com.br/products/323355991-disc-brake-assembled-set-j-kit-deore-xt-bl-m8100)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-27*