Universal Parts
Blue Line Right Brake Master Cylinder - No Mirror Mount
SKU 100-249
$23.00
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Shipping calculated at checkout.
Description
Restore responsive, dependable stopping power to your ATV, dirt bike, or motorcycle with the premium Blue Line Right-Hand Brake Master Cylinder Assembly. Engineered as a durable factory replacement, this complete master cylinder is built to endure harsh riding conditions, providing immediate hydraulic pressure to your front brake system.
Key Features
- Bottom-Mount Brake Line Interface: Designed for clean brake line routing on compact handlebar setups, reducing the risk of snagging trail debris or bodywork.
- All-In-One Control Layout: Comes fully equipped with an integrated right-hand brake lever, a non-wired brake safety switch, and a matching banjo bolt for immediate setup.
- Universal Handlebar Mounting: Features a standard 22mm (7/8 inch) clamp diameter to fit securely onto almost any common small-to-mid displacement handlebar.
- No Mirror Mount Thread: This unit does not include an integrated mirror mounting thread — ideal for ATVs, dirt bikes, and motorcycles with body-mounted or stem-mounted mirrors. If your application requires a handlebar mirror, see our Right Master Cylinder with Mirror Mount instead.
Vehicle & Application Fitment
This right-side master cylinder fits any vehicle with a standard 22mm handlebar and a front hydraulic disc brake setup. Common applications include:
| Vehicle Type | Common Applications |
|---|---|
| Youth & Sport ATVs | 70cc, 90cc, 110cc, 125cc entry-level and recreational four-wheelers with front hydraulic disc brakes. |
| Dirt Bikes / Pit Bikes | 50cc–125cc pit bikes and off-road dirt bikes with 22mm handlebars and hydraulic front brakes. |
| On-Road Motorcycles | Small-displacement motorcycles and mopeds with body-mounted or stem-mounted mirrors (no handlebar mirror thread required). |
| GY6 Scooters & Go-Karts | Chinese GY6-powered scooters, mini bikes, and go-karts utilizing a 22mm handlebar hydraulic brake setup. |
| Custom / Recreational Builds | Mini choppers, pocket bikes, electric bikes, and custom builds using standard 7/8" handlebar clamps. |
Technical Specifications
- Handlebar Clamp Diameter: 22mm (7/8 Inch)
- Brake Line Port: Bottom-Mount Orientation
- Mirror Mount Thread: None
- Manufacturer Part Number (MPN): UPJ 4870
- Mounting Position: Right-Hand Handlebar
- SKU: 100-249
Mechanic's Installation Tip: After bolting the master cylinder down, fill the fluid reservoir and fully bleed your lines to clear out any trapped air bubbles that cause a spongy lever feel. Always use a lint-free cloth to shield plastic body fairings, as brake fluid will instantly blister and ruin plastic coatings.
SKU: 100-249 | Vendor: Blue Line | Category: Brake Master Cylinders in Motor Vehicle Braking
This product is not intended for use on public roads or land.
Product Diagrams
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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