BH 90 & BH 59 Olives – Hydraulic Brake Hose Compression Fittings

Secure and seal your Shimano (or compatible) hydraulic disc brake hoses with these essential BH 90 and BH 59 olives (also called compression olives or ferrules), the small brass or copper sleeves used alongside insert barbs to create a leak-proof connection at the brake lever and caliper ends. These olives are a critical replacement part for bleeding, shortening, or repairing hydraulic brake lines on MTB, gravel, road, and e-bikes. The BH90 olives are designed for newer, high-performance Shimano hoses (narrower inner diameter for better pressure transfer and braking feel), while BH59 olives fit older or standard hoses (slightly larger inner diameter for lower-pressure systems). Importantly, the olives themselves are physically identical in outer dimensions and often interchangeable across BH59/BH90 hoses, with the main differences in the matching barb inserts (pin/connector) that support the hose wall internally. Made from durable brass/copper (gold or silver finish), they compress against the hose when the banjo bolt or fitting is tightened, forming a reliable seal without leaks. Sold in pairs or bulk kits (e.g., 10–50 sets with barbs), they’re affordable, easy to install with basic tools, and compatible with Shimano, SRAM, Magura, Tektro, and many aftermarket hydraulic systems. More than just a small part—it’s your quick-fix for restoring full braking power and confidence on every ride.

Key Features

• Compression Seal Design → Brass/copper olive crushes against the hose exterior when tightened, creating a secure, leak-free connection at lever and caliper ends.
• BH90 vs BH59 Compatibility → Olives are dimensionally the same (interchangeable in most cases); BH90 pairs with narrower high-pressure hoses (better modulation), BH59 with standard hoses—match to your hose type for optimal fit.
• Durable Materials → High-quality brass (gold/silver) resists corrosion, handles high fluid pressure, and provides reliable long-term sealing.
• Easy Replacement → Simple install during hose shortening, bleeding, or repair; use with matching barb insert (pin) to support hose interior.
• Bulk & Kit Options → Available in singles, 10-packs, or sets with barbs/inserts for multiple repairs or shop use.
• Wide Compatibility → Fits Shimano BH59/BH90 hoses, plus many SRAM, Magura, Tektro, and aftermarket systems (confirm hose type and barb match).

Specifications Table

Compatible Riders/Terrain

These olives excel in a wide range of scenarios, including:

• Brake Maintenance & Bleeding → Essential for shortening hoses, replacing damaged lines, or full system rebuilds to restore crisp braking.
• Trail & MTB Riding → Reliable sealing on rough terrain where hose stress or punctures occur; quick fix for leak-free performance.
• Gravel & Road Upgrades → Works on hydraulic disc setups for mixed-surface riding, commuting, or long-distance endurance.
• All Hydraulic Users → Budget replacement for worn or lost olives during service—prevents leaks and maintains powerful modulation.

BH90/BH59 olives are the go-to fix for Shimano hydraulic brakes in Kenya’s diverse conditions—from Karura singletrack dust to Ngong Hills rocks or urban commutes. The olives are physically interchangeable in most cases (same outer size), but always match the barb/insert to your hose type (BH90 for narrower high-pressure lines, BH59 for standard) to avoid leaks or poor sealing. In the brake parts world, these small olives stand out for their reliability, low cost, and ease of use during maintenance. Picture fixing a leaky line mid-ride or bleeding brakes like a pro—this part keeps your stopping power spot-on. Stock up today—grab BH 90 & BH 59 olives and keep your hydraulics sealed and strong!