Sumart UBB-40 Universal Brake Bleed Block & Piston Spreader for 4-Piston Calipers

Professional Brake Bleeding Made Easy

The Sumart UBB-40 Universal Bleed Block is the essential tool for maintaining your hydraulic disc brakes. Designed specifically for 4-piston calipers, this precision tool protects delicate ceramic pistons while ensuring the perfect pad gap during brake bleeding operations.

Key Benefits:

• Universal Compatibility: Works with most major 4-piston brake systems, including Shimano, SRAM, Hope, and more
  
  
• Dual Adjustment Options: Fine-tune by hand or use a 3mm hex key for precise, repeatable positioning
  
  
• Piston Protection: Prevents damage to expensive ceramic pistons during maintenance
  
  
• Perfect Pad Gap: Ensures optimal spacing for smooth brake performance
  
  
• Durable Construction: Built to last through countless brake bleeds
  
  
• Vibrant Color Options: Available in Black, Red, Blue, Gold, Purple, Orange, Pink, and Green to match your style and bike aesthetics.

Technical Specifications:

• Compatible with: most 4-piston hydraulic disc brake calipers
• Adjustment: Hand-adjustable or 3mm hex key
• Weight: 55g
• Made in Taiwan

Whether you're a professional bike mechanic or a home workshop enthusiast, the UBB-40 makes brake bleeding faster, safer, and more reliable. Ships fast from our USA warehouse so you can get back to riding sooner.