HOPE BORE CAP TOOL MONO M4 LARGE, X2, E4, V4
Maintain your premium stopping power without damaging your hardware. The Hope Bore Cap Tool Mono M4 Large, X2, E4, V4 is an essential addition to any home mechanic's or professional bike workshop's toolkit. Specifically engineered for Hope's modern and classic multi-piston hydraulic disc brake calipers, this tool matches the precise internal pin configurations of the large-format Mono M4, standard X2, and both the small and large bore caps on E4 and V4 calipers. It provides a non-slip interface that enables you to safely extract or torque down components during deep cleans, seal replacements, or custom piston upgrades.
Machined with legendary precision by Hope Technology in Barnoldswick, UK, this tool eliminates the risk of scratching, gouging, or stripping your anodised caliper parts—a common disaster when trying to use makeshift pliers or standard tools. Featuring a robust, integrated external hex drive interface on the back, it allows you to connect a standard socket or spanner easily, giving you maximum leverage and controlled force when breaking loose factory-sealed or stubborn, corroded bore caps.
Key Features
Multi-Caliper Pin Interface: Machined specifically to slot perfectly into the notches of Hope Mono M4 (Large), X2, E4, and V4 bore caps for a slip-free engagement.
Component Surface Protection: Engineered to prevent the marring, scratching, or rounding out of premium anodised caliper components.
Integrated Hex Drive: Features a standard 16mm (5/8") external hex profile on the reverse side, allowing easy use with workshop spanners or socket wrenches.
Workshop-Grade Durability: Crafted from premium, hard-wearing tool steel to withstand high workshop torque settings and repeated use.
Authentic UK Manufacturing: Proudly designed and CNC-machined in the United Kingdom to guarantee strict alignment with genuine Hope brake specifications.
Specifications
Application: Piston bore cap removal and installation
Caliper Compatibility: Hope Mono M4 (Large cap), X2 (All caps), E4 (All caps), V4 (All caps), RX4/RX4+ (Large cap)
Material: High-tensile workshop steel / aluminium
Drive Interface: 16mm (5/8") External hex
Tool Size: Multi-Format (Part Number: HTTCTC)
Removable: N/A (Hand tool)
✅ Why This Product IS For You
Modern Four-Piston Brake Owners: Perfect if you run popular Hope E4 or V4 enduro and downhill brakes and want to complete your own routine piston or seal maintenance.
Professional Workshops: Ideal for bike mechanics who require the correct, factory-approved tool to service premium customer brakes without scratching the anodised finish.
Gravel Riders with RX4 Calipers: Great if you run Hope's drop-bar RX4+ hydraulic calipers and need to safely service the large-format bore caps.
❌ Why This Product May NOT Be For You
Classic Mono Mini/V2 Owners: This specific configuration will not fit older Mono Mini or Tech V2 calipers, which require the dedicated HTTCTD format tool.
No External Wrench: This tool consists solely of the machined socket piece; it cannot be operated standalone and requires a separate spanner or socket drive to turn it.
BFC PRO TIP
Hope factory bore caps are installed using a strong thread-locking compound from the factory, which can make them notoriously stubborn to break loose initially. Before you apply hard wrench leverage, use a heat gun or a hair dryer on a medium setting to gently warm the metal caliper body for 30 to 45 seconds. This softens the internal thread lock adhesive, allowing the tool to smoothly break the seal without slipping or damaging the delicate pins!
