Shimano Disc Brake Hoses

Shimano SM-BH59 vs SM-BH90: Brake Hose Compatibility Guide

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🔧 Why Shimano Brake Hose Compatibility Matters

When upgrading or maintaining your Shimano hydraulic brakes, choosing the correct hose isn’t just a minor detail — it’s essential for optimal performance and rider safety.

Shimano offers two main types of hydraulic brake hoses:

  • SM-BH90 – High-performance hose with superior rigidity and power
  • SM-BH59 – Standard hose offering reliable performance for everyday riding

This guide explains the differences, use cases, and compatibility of each Shimano brake hose series — across road, gravel, MTB, and hybrid setups.


🚴 Shimano SM-BH90 Brake Hoses: For High-Power Performance

Built for advanced riders and demanding terrain, SM-BH90 hoses are stiffer and designed for better braking response under pressure. These are commonly found on Shimano’s top-tier road, gravel, and mountain systems.

🔍 SM-BH90 Variants and Use Cases

Hose Model Connection Rigidity Common Use
SM-BH90-JK-SSR Straight–Straight High Power Road, gravel, cyclocross
SM-BH90-SBM Straight–Banjo High Power Trail and enduro MTB
SM-BH90-SBLS Straight–Banjo High Power Off-road MTB
SM-BH90-SBS Straight–Banjo High Power High-performance MTB
SM-BH90-SB Straight–Banjo High Power Premium MTB systems
SM-BH90-SS Straight–Straight High Power MTB and hybrid bikes

✅ SM-BH90 Compatibility Highlights

Brake System Compatible Hose
ST-R9270 / BR-R9270 SM-BH90-JK-SSR
ST-RX820 / BR-RX820 SM-BH90-JK-SSR
ST-R9120 / ST-R9170 / BR-R9170 SM-BH90-JK-SSR
ST-RX810 / BR-RX810 SM-BH90-JK-SSR
ST-RX600 / BR-RX400 SM-BH90-JK-SSR
BL-RX810 / BR-RX810 SM-BH90-JK-SSR

🔩 Best Use Cases for SM-BH90

  • Road Racing: ST-R9270 with BH90-JK-SSR for maximum braking force
  • Gravel & Adventure: RX820/RX810 with BH90-JK-SSR for high loads and control
  • Enduro & Downhill MTB: SB, SBLS, SBS or SBM variants for high power and modulation

🚲 Shimano SM-BH59 Brake Hoses: Standard for Everyday Performance

The SM-BH59 hose series is ideal for entry-level to mid-range bikes. It delivers consistent braking performance with easier installation and more flexibility — perfect for commuters, recreational riders, or casual trail use.

🔍 SM-BH59 Variants and Use Cases

Hose Model Connection Rigidity Common Use
SM-BH59-J-SS Straight–Straight Standard Commuters, road, lifestyle
SM-BH59-JK-SS Straight–Straight Standard Mid-tier MTB
SM-BH59-JK-SSR Straight–Straight Standard Road and gravel bikes
SM-BH59-SB Straight–Banjo Standard Urban or gravel bikes
SM-BH59-SB-J Straight–Banjo Standard Versatile fit across systems

✅ SM-BH59 Compatibility Highlights

Brake System Compatible Hose
ST-R785 / BR-RS805 SM-BH59-J-SS
ST-RS685 / BR-RS805 SM-BH59-J-SS
ST-RS505 / BR-RS505 SM-BH59-JK-SSR
ST-RS405 / BR-RS405 SM-BH59-SB
BL-RS600 / BR-RS405 SM-BH59-SB-J
ST-RX400 / BR-RX400 SM-BH59-JK-SSR

🔩 Best Use Cases for SM-BH59

  • Budget Road Builds: ST-RS505 + BH59-JK-SSR
  • City Commuters: RS600/RS405 setups with SB-J
  • Gravel & Mixed Terrain: RX400 with BH59-JK-SSR for controlled braking at lower cost

🧰 What You’ll Need for Installation

Replacing Shimano hydraulic brake hoses isn’t just about the hose itself. To ensure safe, leak-free operation, make sure you also have:


🛑 While You’re Upgrading: Don’t Forget Your Pads

Upgrading hoses is the perfect time to inspect or replace your brake pads — especially if you're noticing noise, poor braking power, or pad contamination.

At Gorilla Brakes, we offer high-performance Shimano-compatible brake pads trusted by riders across the UK and EU.

🔥 Popular Options for Shimano Systems

  • 🔧 Factory Racing Organic Pads – For trail, enduro, and daily mixed riding
  • ⚙️ Titanium-Backed Pads – Race-level heat control and weight savings
  • 🌧️ All-Weather Organic Pads – Built for wet UK conditions and quiet braking

All pads are:

Whether you’re a commuter in London, a gravel rider in Girona, or exploring the Lake District — we’ve got Shimano-compatible pads built for your terrain.


🔬 Learn More

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