Thumb Brake Master Only – Left-Thumb Rear Brake Lever & Master Cylinder

Want to upgrade gradually or already have the brake line and hardware? This is the core component of our award-winning thumb brake system: the adjustable left-thumb lever and custom master cylinder.

Perfect for: Riders who want to add thumb control step-by-step or need a spare master.

Backorder shipping date, April 24.

480,00 

Available on backorder

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Category:

Thumb brake master only.

This kit can be used for rear brake or clutch setups.

Can include a brake line.

Backorder shipping date, April 24.

Key Features

  • Fully adjustable thumb lever positioning
  • Fully adjustable thumb lever positioning
  • Custom master cylinder (same high-quality unit used in the full kit)
  • Two bleed ports for easy maintenance
  • Direct bolt-on to handlebar (no frame modifications)
  • Retains full compatibility with your existing foot brake and rear calliper