KustomTech Classic Line 12mm Brake Master Cylinder — All Black
Black is raw elegance. It's the choice for dark builds, for bikes with the look of a war machine that don't seek to please but to impress. The KustomTech Classic Line TUV 12mm black brake master cylinder is the perfect black KustomTech master cylinder that provides that finishing touch that transforms an ordinary handlebar into the centerpiece of a successful build.
A deep black on forged aluminum
KustomTech's black finish isn't just a quick coat of paint. It's a black ceramic coating applied to high-quality forged aluminum , resistant to UV rays, weathering, and everyday impacts. The finned cover retains its detail and texture, even in black, and the lever maintains its smooth, rounded profile for optimal grip comfort.
Performance and homologation
The 12mm (15/32″) diameter piston ensures smooth and controlled braking. Ideal for choppers, bobbers, café racers, and trackers equipped with a single front brake disc. This master cylinder fits all 1-inch (25,4 mm) handlebars without any modifications.
Like all models in the Classic Line TUV range, it benefits from TUV homologation — certified for legal road use. No need to hide it during vehicle inspections, it's fully compliant.
The blackout option for your handlebars
If you're building an all-black setup—black handlebars, black cables, black grips—this master cylinder completes the look perfectly. Paired with the black KustomTech Classic Line clutch lever , you get a 100% coordinated handlebar and grip combo that makes a serious statement. The black finish is also available with a 14mm bore for dual-disc setups.
Holdfast's expertise
At Holdfast in Marseille , black is our color. We know these parts, we install them, and we approve of them. Your black KustomTech brake master cylinder is in stock. Secure ordering, fast delivery, and if you have any technical questions, we're here for you.
Manufacturer reference: 20-670
Maker : KustomTech (Italy)
Material: Forged aluminum
finish: Black (ceramic coating)
Bore: 12mm (15/32 ″)
Compatibility: 1″ (25,4 mm) handlebars
Approval: TUV (road use approved)
See as well
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Technical specifications — KustomTech Classic Line TUV 12mm brake master cylinder — Black
- Brand: KustomTech (Italy)
- finish: Noir
- Dimension: 12 mm
- Manufacturing: CNC machining from solid stock (Italian workshop)
- Official distributor in France: Holdfast Marseille
- Shipping time: 48 hours from Marseille
Harley Davidson Brake Master Cylinder Compatibility
Compatible with all Harley Davidson motorcycles equipped with hydraulic brakes (95% of models since 1980). Check your current bore (12 mm for single-disc, 14 mm for dual-disc or 4-piston caliper).
Installation
1 to 2 hours of work. Brake fluid flush, removal of the stock master cylinder, installation of the KustomTech, brake hose connection, complete bleeding. Do it yourself if you're comfortable with hydraulics, otherwise hire a specialist mechanic.
FAQ — Brake Master Cylinders
Hydraulic or cable-driven?
Hydraulic brakes offer modern, progressive braking with precise modulation. Cable (mechanical) brakes require more effort but give the pure vintage look of old-school choppers.
Approved for road use in France?
Yes. All KustomTech master cylinders are approved for European road use (ECE standard) and are compatible with motorcycle insurance. You can install them legally.
Does the system need to be bled?
Yes, absolutely after installation. Use DOT 4 or DOT 5.1 fluid depending on your motorcycle. Allow 30 minutes for a proper bleeding process.
Why buy from Holdfast Marseille?
- Official distributor of KustomTech France since 2019
- Permanent stock in Marseille, 48-hour shipping within mainland France
- Free delivery on orders over €150
- Responsive customer service from Marseille (no returns from Italy)
- KustomTech 2-year warranty
- Expert biker advice: call +33 6 45 57 84 26
Rob H. (confirmed customer) –
The brass finish is gorgeous. It's developed a beautiful patina after a few months of riding. Exactly what I wanted for my bobber.
Klaus S. (confirmed customer) –
Top Product. Installation war einfach, Funktion einwandfrei. The Verarbeitungsqualität ist deutlich besser als bei anderen Anbietern.
Henk M. (confirmed customer) –
Uitstekende kwaliteit. Het messing heeft een prachtige afwerking. Past perfect op mijn stuur. Snelle levering ook.