---
product_id: 646464652
title: "EXNAVI Bicycle hydraulic brake caliper piston oil leakage repair parts maintenance upgrade kit for Shimano SLX M675 M7000 M7100 XT RS805 M785 M8000 M8100 XTRM9020 R9170 M9000 M9100 calipers, Black"
brand: "exnavi"
price: "620.77 DT"
currency: TND
in_stock: true
url: https://www.desertcart.tn/products/646464652-exnavi-bicycle-hydraulic-brake-caliper-piston-oil-leakage-repair-parts
store_origin: TN
region: Tunisia
---

# Turbine fan heat dissipation ±5μm precision machining Lightweight 4g upgrade kit EXNAVI Bicycle hydraulic brake caliper piston oil leakage repair parts maintenance upgrade kit for Shimano SLX M675 M7000 M7100 XT RS805 M785 M8000 M8100 XTRM9020 R9170 M9000 M9100 calipers, Black

**Brand:** exnavi
**Price:** 620.77 DT
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Upgrade your brakes, own the trail with precision and power!

## Quick Answers

- **What is this?** EXNAVI Bicycle hydraulic brake caliper piston oil leakage repair parts maintenance upgrade kit for Shimano SLX M675 M7000 M7100 XT RS805 M785 M8000 M8100 XTRM9020 R9170 M9000 M9100 calipers, Black by exnavi
- **How much does it cost?** 620.77 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/646464652-exnavi-bicycle-hydraulic-brake-caliper-piston-oil-leakage-repair-parts)

## Best For

- exnavi enthusiasts

## Why This Product

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

## Key Features

- • **Mineral Oil Optimized:** Specifically designed for mineral oil systems—clean ceramic residue before installation for flawless sealing.
- • **Lightweight Yet Durable:** At just 4 grams, this kit upgrades your calipers without adding bulk or weight.
- • **Comprehensive Compatibility:** Perfectly tailored for Shimano SLX, XT, XTR series hydraulic calipers—keep your setup factory fresh.
- • **Advanced Heat Dissipation Design:** Innovative turbine fan shape accelerates cooling to prevent brake fade on intense rides.
- • **Precision Engineered for Peak Performance:** Ultra-tight ±5μm tolerance ensures flawless piston fit and smooth braking.

## Overview

This EXNAVI hydraulic brake caliper piston repair kit is a precision-machined, lightweight upgrade designed for Shimano SLX, XT, and XTR hydraulic disc brake calipers. Featuring ultra-tight tolerances (±5μm), a turbine fan heat dissipation design, and compatibility exclusively with mineral oil brake systems, it ensures reliable, high-performance braking and extends caliper life. Made in the USA, this kit includes pistons, seals, and rings for a complete maintenance solution.

## Description

Caliper Parts. Material: Reinforced polyester resin, rubber Brake medium compatibility: Mineral Oil Brake compatibility: Service parts for shimano SLX XT XTR hydraulic disc brake calipers Weight weighed: 10.6g Color: Black Caliper Piston Kits Include: 2x caliper pistons OD0.862 x H0.3465inch(OD21.9 x H8.8mm); 2x square profile piston seals ID0.854 x 0.086inch; 2x sealing rings for brake caliper 0.236 x 0.059inch(6 x 1.5mm); 2x sealing rings for line connection 0.2559 x 0.0394inch(6.5 x 1mm). TIPS: ONLY APPLICABLE TO MINERAL OIL, NOT APPLICABLE TO DOT OIL OR OTHER BRAKE FLUIDS, CLEAN THE CERAMIC RESIDUE BEFORE INSTALLATION!！

## Features

- Is your Shimano SLX XT XTR hydraulic brake caliper leaking Is the ceramic piston broken Or to make a small friction between the discs This is what you need!
- SERVICE CALIPER PISTON KIT,Product size OD0.862xH0.3465inch(OD21.9xH8.8mm) Lightweight 0.15 oz (4g)
- Suitable for Shimano SLX M675 M7000 M7100 XT R8070 RS785 RS805 M785 M8000 M8100 XTRM9020 R9170 M9000 M9100 brake calipers
- High-precision machining The outer diameter is coreless grinding, the outer diameter tolerance is plus or minus 5um, the roundness is 3um, and the roughness is Ra0.4um.The hurricane heat dissipation shape, the front turbine fan-shaped fan wind heat dissipation, to make the heat dissipation faster!
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | EXNAVI |
| Country of Origin | USA |
| Item part number | EX21988 |
| ASIN | B08HD94YKC |

## Images

![EXNAVI Bicycle hydraulic brake caliper piston oil leakage repair parts maintenance upgrade kit for Shimano SLX M675 M7000 M7100 XT RS805 M785 M8000 M8100 XTRM9020 R9170 M9000 M9100 calipers, Black - Image 1](https://m.media-amazon.com/images/I/51RPLreuAjL.jpg)

## Frequently Bought Together

- OD21.9*H8.8 bicycle hydraulic brake caliper piston oil leakage repair kit upgrade replacement Shimano ceramic double piston suitable for M675 M785 M7000 M7100 M8000 M8100 M9000 M9020 M9100 brakes
- SHIMANO BRBX Pads + spg Alloy Back Resin L05A w/Fin Black one Size
- SHIMANO Mineral Oil

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-27*