Custom Rear Brake Master Cylinder 14 mm — Polished Aluminum KustomTech
Hey biker. This custom KustomTech master cylinder is dedicated to the rear brake. Ultra-compact design machined from a solid block, perfect for projects where every square inch of tank or frame counts. The kind of part that makes all the difference on a clean bobber.
Mirror polished aluminum finish — the classic version, which captures the light and highlights the machining.
Technical characteristics
- Material: Polished aluminum, machined from a solid block
- Bore (bore): 14 mm (9/16 ")
- Application: Custom rear brake
- Design: Ultra-compact, sleek lines, discreet mounting
- Manufacturing: Italy, KustomTech custom line
- Manufacturer reference: 40-083
For the rear brake
This pump is specifically designed for projects where you want to maintain a functional rear brake with discreet hydraulic lines. It offers broad compatibility, as the 14mm bore covers most custom and stock rear calipers (1 or 2 pistons). Mount it to the footpeg bracket according to your frame.
Compatibility and assembly
The 14 mm (9/16″) piston bore covers most brake and clutch applications on custom Harley projects or similar. Before installation, always check the required oil volume for your caliper/slave cylinder and adjust the master cylinder size to the appropriate torque if necessary. If you have any doubts, the Holdfast team in Marseille can advise you via WhatsApp or in-store—we know the KustomTech line inside and out.
Delivery and after-sales service
Dispatched within 48 hours from our Marseille workshop. 14-day money-back guarantee. Secure payment via Stripe or PayPal. Free delivery on orders over €150 in mainland France. Delivery available throughout Europe.
Price: €323.57 including VAT . Manufacturer reference: 40-083.
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Technical Specifications — Custom Rear Brake Master Cylinder 14 mm — Polished Aluminum KustomTech
- Brand: KustomTech (Italy)
- Material: Aluminium
- finish: Poli
- Dimension: 14 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
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