Toopre Hydraulic Brake Bleed Funnel Adaptor for Shimano Road Bicycle

Toopre Hydraulic Brake Bleed Funnel Adaptor. It is a specialized tool used to bridge the connection between standard mountain bike (MTB) bleed kits and Shimano road bicycle hydraulic brake systems, such as those in the Shimano 105, Ultegra (UT), and Dura-Ace (DA) series. 

Key Details & Use

Purpose: Standard Shimano MTB bleed funnels (typically designed for Deore, SLX, XT, and XTR) do not fit directly into road bike brake levers because of different thread sizes. This adapter allows you to use your existing MTB funnel on road levers.

Specifications: It features a Male Thread (M5 x 0.8P) and a Female Thread (M7 x 0.75P). Washers are typically included to ensure a leak-proof seal during the bleeding process.

Compatibility: It is specifically designed for Shimano road hydraulic brakes.

Recommended Setup: For the best results, it is often recommended to use this with a full Toopre Brake Bleed Kit or other compatible mineral oil kits.