Elevate your bicycle maintenance routine with the Sumart UBB-60 Universal Bleed Block. This precision-engineered tool is designed specifically for 2-piston brake calipers and Magura calipers that require a slimmer profile. It serves as both a bleed block and a piston spreader, safeguarding delicate ceramic pistons during maintenance to ensure your hydraulic system remains in peak condition.

Note: This tool can also be used on 4-piston calipers for spreading pistons, but it serves as a bleed block for 2-piston systems only.

Key Features:

• Ceramic Piston Protection: Safeguards your brake system’s delicate ceramic pistons from damage during bleeding and maintenance.
  
  
• Engineered for 2-Piston & Magura Calipers: specifically designed for optimal compatibility with standard 2-piston systems and Magura calipers that have smaller tool openings.
  
  
• Bicycle-Specific Design: A trusted solution for cyclists looking for professional-grade bleed blocks and precise piston spreaders.
  
  
• Versatile Application: Seamlessly integrates with various hydraulic brake systems for broad usability.
  
  
• Effortless Adjustability: Easily adjust by hand for quick tweaks, or use a 3mm Allen key for enhanced precision.
  
  
• Bar-end Storage: Compact design allows you to store the tool inside your handlebar ends, so it's always ready for quick repairs.
  
  
• Vibrant Color Options: Available in Black, Red, Blue, Gold, Purple, Orange, or Pink to match your bike's style.

Specifications:

• Model Number: UBB-60
• Available Colors: Black, Red, Blue, Gold, Purple, Orange, Pink

Combine functionality with visual appeal. The UBB-60 Universal Bleed Block is the ultimate solution for effective brake maintenance, delivering professional-grade reliability for every repair.

Sumart UBB-40 Universal Bleed Block & Piston Spreader

Protect pistons, set the correct pad gap, and make 4-piston brake bleeding cleaner and more consistent.

The Sumart UBB-40 Universal Bleed Block is designed to simplify hydraulic brake maintenance on 4-piston calipers. Built to help hold pistons in the correct position during bleeding and service, the UBB-40 protects delicate pistons, supports proper pad spacing, and helps mechanics achieve a more consistent brake setup with less guesswork.

Whether you are servicing brakes in a professional workshop or maintaining your own bike at home, the UBB-40 is a practical tool for safer, cleaner, and more repeatable brake bleeds. Its adjustable design lets you fine-tune the fit by hand or with a 3 mm hex key, making it easier to work across a wide range of compatible 4-piston brake systems.

Key Features & Benefits

• Universal 4-Piston Compatibility: Designed to work with most major 4-piston hydraulic disc brake systems.
• Dual Adjustment Options: Can be adjusted by hand or with a 3 mm hex key for more precise positioning.
• Piston Protection: Helps prevent damage to delicate brake pistons during bleeding and maintenance.
• Correct Pad Gap Setup: Supports proper spacing for smoother brake operation and more consistent lever feel after service.
• Workshop-Ready Construction: Built for repeated brake maintenance and regular workshop use.
• Multiple Color Options: Available in a wide range of finishes to match your tools or bike build.

Why Use a Bleed Block?

A proper bleed block helps keep brake pistons correctly positioned during maintenance, which can improve bleed consistency and reduce the risk of accidental piston damage. For 4-piston brakes especially, using the correct block can make brake bleeding faster, more repeatable, and less frustrating.

Specifications

• Model: UBB-40
• Product Type: Universal bleed block / piston spreader
• Compatibility: Most 4-piston hydraulic disc brake calipers
• Adjustment: Hand-adjustable or 3 mm hex key
• Weight: 55 g
• Country of Origin: Made in Taiwan
• Color Options: Black, Red, Blue, Gold, Purple, Orange, Pink, Green

Ideal For

The Sumart UBB-40 is ideal for bike shops, home mechanics, and riders servicing 4-piston hydraulic disc brakes. It is especially useful for brake bleeding, piston resetting, and routine hydraulic brake maintenance where piston protection and consistent pad spacing matter.

If you want a cleaner, more controlled way to service 4-piston brakes, the Sumart UBB-40 Universal Bleed Block is a smart addition to your brake maintenance toolkit.

Sumart UBB-20 Universal Bleed Block & Piston Spreader

Protect pistons, set the correct pad gap, and make 2-piston brake bleeding cleaner and more consistent.

The Sumart UBB-20 Universal Bleed Block is designed to simplify hydraulic brake maintenance on 2-piston calipers. Built to help hold pistons in the correct position during bleeding and service, the UBB-20 protects delicate ceramic pistons, supports proper pad spacing, and helps mechanics achieve a more consistent brake setup with less guesswork.

This tool can also be used on 4-piston calipers as a piston spreader, though it is primarily intended as a bleed block for 2-piston systems. Whether you are servicing brakes in a professional workshop or maintaining your own bike at home, the UBB-20 is a practical tool for safer, cleaner, and more repeatable brake bleeds.

Key Features & Benefits

• Ceramic Piston Protection: Helps protect delicate brake pistons during bleeding and maintenance.
• Designed for 2-Piston Calipers: Built specifically for 2-piston hydraulic brake systems found on many bicycles.
• Also Useful as a Piston Spreader: Can be used on 4-piston calipers for piston spreading, even though it is not intended as a 4-piston bleed block.
• Adjustable by Hand or 3 mm Hex Key: Easy to fine-tune for a more precise fit during service.
• Broad Hydraulic Brake Use: A practical tool for brake bleeding, piston resetting, and general brake maintenance.
• Multiple Color Options: Available in several finishes to match your tools or bike build.

Why Use a Bleed Block?

A proper bleed block helps keep brake pistons correctly positioned during maintenance, which can improve bleed consistency and reduce the risk of accidental piston damage. On 2-piston brake systems especially, using the correct block can make brake bleeding faster, more repeatable, and less frustrating.

Specifications

• Model Number: UBB-20
• Product Type: Universal bleed block / piston spreader
• Primary Use: 2-piston hydraulic brake calipers
• Secondary Use: 4-piston calipers for piston spreading only
• Adjustment: Hand-adjustable or 3 mm Allen key
• Available Colors: Black, Red, Blue, Gold, Purple, Orange, Pink

Ideal For

The Sumart UBB-20 is ideal for bike shops, home mechanics, and riders servicing 2-piston hydraulic disc brakes. It is especially useful for brake bleeding, piston resetting, and routine hydraulic brake maintenance where piston protection and consistent pad spacing matter.

If you want a cleaner, more controlled way to service 2-piston brakes, the Sumart UBB-20 Universal Bleed Block is a smart addition to your maintenance toolkit.

The Lewis Bike PM-40 Adapter is an essential component for riders seeking a versatile and reliable way to mount their disc brake calipers to a wide range of frame and fork configurations. This adapter allows seamless compatibility between 20mm and 40mm Post Mount standards, ensuring a secure and stable fit. 

Made from durable materials, it guarantees consistent performance under various riding conditions. Its precise design maintains brake alignment, contributing to improved braking efficiency and performance. The adapter is easy to install, making it a practical solution for upgrading or fine-tuning your bike's braking system.

The Lewis Bike PM-20 Adapter is an essential component for riders seeking a versatile and reliable way to mount their disc brake calipers to a wide range of frame and fork configurations. This adapter allows seamless compatibility between 20mm and 40mm Post Mount standards, ensuring a secure and stable fit. 

Made from durable materials, it guarantees consistent performance under various riding conditions. Its precise design maintains brake alignment, contributing to improved braking efficiency and performance. The adapter is easy to install, making it a practical solution for upgrading or fine-tuning your bike's braking system.

The Lewis Bike Matchmaker Adapter offers a streamlined solution for mounting your brake lever and SRAM shifter on a single clamp. This adapter helps reduce clutter on the handlebars by consolidating two components into one secure attachment point, improving ergonomics and simplifying setup. Designed for compatibility with all Lewis braking systems, it ensures precise alignment and reliability, making it an ideal choice for riders seeking a clean, efficient, and easy-to-install solution for their bike's cockpit.

These are not compatible with the Lewis AE brakes!

The PM-PM+20-A was specifically used with the Lewis LHP calipers, if you have issues with other 20mm adpaters please try this one. This is designed to work with the Lewis Bike LHP-U4 and LHP-S4 brake systems. It can still be used with the other LHT and LH4 brakes.

The Lewis Bike PM-20-A Adapter is an essential component for riders seeking a versatile and reliable way to mount their disc brake calipers to a wide range of frame and fork configurations. This adapter allows seamless compatibility between 20mm and 40mm Post Mount standards, ensuring a secure and stable fit.

Made from durable materials, it guarantees consistent performance under various riding conditions. Its precise design maintains brake alignment, contributing to improved braking efficiency and performance. The adapter is easy to install, making it a practical solution for upgrading or fine-tuning your bike's braking system.

Lewis Shimano I-Spec EV Direct Mount Adapter

Clean up your cockpit with a lightweight direct-mount solution for compatible Lewis brakes and Shimano I-Spec EV shifters.

The Lewis Shimano I-Spec EV Direct Mount Adapter is designed to integrate a compatible Shimano I-Spec EV shifter directly with select Lewis brake levers, creating a cleaner, more ergonomic cockpit with fewer separate clamps on the handlebar. Built specifically for Lewis LH4, LHT, and LHP brake kits, this adapter helps bring your controls into a more compact and refined layout for improved bar organization and easier access while riding.

Precision CNC-machined from 7075-T6 aluminum, this one-piece adapter provides accurate alignment, low weight, and dependable strength without adding unnecessary bulk. At just 5.5 g, it is an ideal cockpit upgrade for riders who want secure shifter integration, a more streamlined handlebar setup, and a premium fit-and-finish on trail, enduro, or performance-oriented builds.

Key Features & Benefits

• Designed for Lewis LH4, LHT, and LHP Brakes: Built specifically to work with these compatible Lewis brake kits for proper integration and fit.
• Shimano I-Spec EV Compatibility: Allows a compatible Shimano I-Spec EV shifter to mount directly alongside the brake lever for a cleaner cockpit layout.
• Single-Mount Cockpit Setup: Reduces handlebar clutter by combining controls into one mounting solution instead of multiple separate clamps.
• Precision CNC-Machined 7075-T6 Aluminum: High-strength aluminum construction offers excellent durability, precise fitment, and low weight.
• Ultra-Light 5.5 g Weight: Adds minimal weight to the bike while delivering a tidy and secure cockpit configuration.
• One-Piece Construction: Supports a stable, slip-resistant interface for dependable control positioning.
• Available in Two Finishes: Offered in Silver and Black to better match a range of bike builds.

Important Compatibility Note

Not compatible with Lewis AE or Lewis LV brakes.

Why Use a Direct Mount Adapter?

A direct mount shifter adapter helps create a cleaner and more functional cockpit by reducing the number of separate clamps on the handlebar. This can improve ergonomics, free up bar space, and make it easier to position the shifter and brake lever exactly where you want them. For riders using compatible Lewis brakes and Shimano I-Spec EV shifters, this adapter is a simple upgrade that improves both appearance and control layout.

Specifications

• Product Name: Lewis Shimano I-Spec EV Direct Mount Adapter
• Brake Compatibility: Lewis LH4, LHT, and LHP brake kits
• Shifter Compatibility: Shimano I-Spec EV
• Not Compatible With: Lewis AE and Lewis LV brakes
• Material: 7075-T6 Aluminum
• Manufacturing Process: CNC Machined
• Construction: One-piece design
• Weight: 5.5 g
• Color Options: Silver, Black

Ideal For

The Lewis Shimano I-Spec EV Direct Mount Adapter is ideal for riders who want a cleaner mountain bike cockpit, fewer handlebar clamps, and a more integrated brake-and-shifter setup. It is especially well suited for trail, enduro, and performance builds using compatible Lewis LH4, LHT, or LHP brakes with a Shimano I-Spec EV shifter.

Lewis Bike Matchmaker Adapter

Clean up your cockpit and mount compatible controls from a single clamp point.

The Lewis Bike Matchmaker Adapter is designed to simplify handlebar setup by allowing your Lewis brake lever and a compatible SRAM shifter or control to mount from a single clamp interface. By combining multiple controls into one mounting point, this adapter helps reduce cockpit clutter, improve ergonomics, and create a cleaner, more organized bar setup.

Ideal for modern mountain bike and trail bike builds, the Lewis Matchmaker Adapter helps riders position controls more precisely while reducing the number of separate clamps on the handlebar. That means a tidier appearance, more room on the bars, and easier access to shifters, dropper remotes, and brake levers. It is a practical upgrade for riders who want a more refined and efficient cockpit layout.

Key Features & Benefits

• Single-Clamp Cockpit Integration: Mounts compatible controls from one clamp location to reduce handlebar clutter and simplify setup.
• Designed for Lewis Brake Systems: Built for compatibility with Lewis brake lever setups for a clean, secure fit.
• SRAM Shifter Compatibility: Allows integration of a compatible SRAM shifter or related control with your brake lever setup.
• Improved Ergonomics: Helps position controls closer together for a cleaner feel and easier access while riding.
• Cleaner Bar Layout: Reduces the number of separate handlebar clamps for a more organized cockpit appearance.
• Easy Installation: Designed for straightforward setup and secure attachment.

Left and Right Side Options

• Left Option: For the left side of the handlebar. Commonly used for a dropper post remote or other left-side control.
• Right Option: For the right side of the handlebar. Commonly used for a SRAM shifter or other right-side control.

Why Use a Matchmaker Adapter?

A bike matchmaker adapter helps streamline the cockpit by combining controls into a single mounting system. This can improve handlebar ergonomics, free up bar space, and create a cleaner setup that is easier to adjust and maintain. For riders building a modern trail, enduro, or mountain bike cockpit, a Lewis matchmaker adapter is a simple way to improve both function and appearance.

Specifications

• Product Name: Lewis Bike Matchmaker Adapter
• Compatibility: Lewis brake systems
• Function: Combines brake lever and compatible control into a single clamp setup
• Side Options: Left and Right
• Typical Left-Side Use: Dropper lever
• Typical Right-Side Use: SRAM shifter
• Application: Mountain bike and performance cockpit setups

Ideal For

The Lewis Bike Matchmaker Adapter is ideal for riders who want a cleaner cockpit, fewer handlebar clamps, and improved control placement. It is especially useful for mountain bikers and trail riders running Lewis brakes with a compatible SRAM shifter or dropper remote.

The Lewis Bike Shimano I-Spec II Adapter offers a streamlined solution for mounting your Lewis brake lever and Shimano I-Spec II shifter on a single clamp (Specificallty the right handlebar). This adapter helps reduce clutter on the handlebars by consolidating two components into one secure attachment point, improving ergonomics and simplifying setup. Designed for compatibility with all Lewis braking systems, it ensures precise alignment and reliability, making it an ideal choice for riders seeking a clean, efficient, and easy-to-install solution for their bike's cockpit.

These are not compatible with the Lewis AE brakes!

Lewis FM-F Adapter – Flat Mount to Flat Mount

Precision-machined flat mount brake adapter for lightweight strength, exact fitment, and flexible rotor sizing.

The Lewis FM-F Adapter is designed for riders and builders who want a clean, reliable way to fine-tune a flat mount disc brake setup. Machined from premium 7075-T6 aluminum using integrated CNC cutting, this adapter delivers excellent stiffness, precise alignment, and minimal added weight. At just 10 g, it is an ideal choice for performance-focused road, gravel, and lightweight build applications where strength and weight both matter.

Built primarily for front fork flat mount applications, the Lewis FM-F adapter gives you the flexibility to maintain your current rotor size or step up to a larger rotor for added braking power and improved heat control. Whether you are optimizing lever feel, increasing stopping authority, or dialing in a custom brake setup, this adapter helps you achieve a more refined and confidence-inspiring braking system.

FM-F Options

• FM-F Ф+0: Standard flat mount adapter configuration. Rotor diameter remains unchanged.
• FM-F Ф+20: Increases supported rotor size by 20 mm. For example, a fork designed around a 140 mm rotor can be adapted to run a 160 mm rotor.

Features & Benefits

• 7075-T6 Aluminum Construction: High-strength alloy provides excellent durability and stiffness while keeping weight extremely low.
• Precision CNC Machining: Integrated CNC cutting helps ensure a clean finish, accurate tolerances, and a precise fit for dependable brake alignment.
• Lightweight 10 g Design: Adds minimal weight to the bike, making it ideal for premium road, gravel, and race-oriented builds.
• Flat Mount to Flat Mount Compatibility: Designed to work within flat mount brake systems for clean integration and proper caliper positioning.
• Rotor Size Flexibility: Available in Ф+0 and Ф+20 options so you can match your setup to your braking needs.
• Improved Braking Setup Control: Makes it easier to optimize rotor sizing for better heat management, stronger braking performance, or specific frame and fork requirements.
• Performance-Focused Application: Well suited for riders building lightweight, responsive, and race-ready braking systems.

Why Rotor Size Matters

Choosing the correct flat mount brake adapter can directly affect braking feel and performance. Running a larger rotor can improve leverage, increase stopping power, and help manage heat more effectively on long descents or under repeated hard braking. The Lewis FM-F adapter gives riders and mechanics a simple way to adapt rotor sizing while maintaining a clean, high-performance flat mount setup.

Specifications

• Product Name: Lewis FM-F Adapter
• Adapter Type: Flat Mount to Flat Mount
• Material: 7075-T6 Aluminum
• Manufacturing Process: Integrated CNC Cutting
• Mounting Seat: 70 mm (FM-F specification)
• Fitment Note: Typically used for front forks
• Available Specifications: Ф+0 and Ф+20
• Weight: 10 g
• Colors: Black, Gunsmoke, Purple, Orange, Gold, Pink
• Application: Road, gravel, and performance bikes

Ideal For

The Lewis FM-F Flat Mount Adapter is ideal for riders, mechanics, and bike builders looking for a lightweight flat mount brake adapter that offers precise fitment, premium construction, and flexible rotor sizing options. It is especially well suited for road bikes, gravel bikes, and high-performance builds where clean integration and dependable braking setup matter.