Front Hydraulic Disc Brake Caliper WEIYINGSI 44mm for 70-125cc Bikes

Description

Product Overview

The WEIYINGSI front hydraulic disc brake caliper is engineered to meet the demanding performance standards of off‑road motorcycles, including dirt bikes, pit bikes, and lightweight sport models ranging from 70cc to 125cc. Constructed from a high‑grade aluminum alloy, the caliper offers a lightweight yet robust structure that resists corrosion and wear even in harsh environments such as mud, sand, and rain. The exterior finish is a premium gold‑painted coating that not only adds a distinctive visual appeal but also provides an additional protective layer against UV exposure and chemical runoff.

Inside the caliper, a precision‑machined rubber seal ensures a tight, leak‑free hydraulic seal, while the mounting plate is designed for ambidextrous installation, accommodating both left‑hand and right‑hand drive configurations. The caliper features a 44 mm center‑to‑center spacing, a standard dimension that aligns with a wide range of aftermarket fork assemblies. The included brake pads are pre‑installed, offering immediate readiness out of the box, and are formulated from a high‑friction composite material that delivers consistent bite and low fade under repeated hard braking.

Key specifications include a total weight of 1.2 pounds, package dimensions of 5.67 x 3.7 x 3.15 inches, and a part number JR3‑033. The product is manufactured by Wingsmoto, a reputable supplier known for rigorous quality control and compliance with industry standards. The caliper is not discontinued, ensuring ongoing support and availability for replacement or upgrades.

Usage

This brake caliper is ideally suited for riders who demand precise modulation and reliable stopping power in competitive or recreational off‑road settings. Whether navigating tight, technical trails, racing on a pit bike circuit, or tackling rugged terrain on a 125cc dirt bike, the WEIYINGSI caliper provides the confidence needed to brake hard and late without sacrificing control. The gold‑finished aluminum housing not only looks striking on the bike but also helps dissipate heat generated during prolonged braking, reducing the risk of brake fade.

Installation is straightforward for experienced mechanics: the mounting plate aligns with the 44 mm bolt pattern, and the ambidextrous design means the same unit can be fitted on either side of the fork. After mounting, it is essential to bleed the brake system to remove any trapped air, ensuring optimal hydraulic performance. The pre‑installed pads simplify the process, but users should verify pad wear periodically and replace them as needed to maintain peak braking efficiency.

Because the caliper is designed for 70‑125cc engines, it pairs well with a variety of fork configurations, from basic single‑speed setups to more advanced adjustable forks. Riders who frequently switch between different bikes will appreciate the ease of swapping this caliper due to its universal mounting spacing and straightforward bleed procedure.

Why Choose Us

Choosing the WEIYINGSI front hydraulic disc brake caliper means selecting a component that balances performance, durability, and aesthetic appeal. Our manufacturing process incorporates CNC machining for tight tolerances, ensuring each caliper meets exacting dimensional standards. The gold‑finished aluminum exterior is not merely decorative; it provides an extra barrier against corrosion, extending the service life of the component even in salty or humid environments.

We stand behind our products with a comprehensive quality assurance program that includes pressure testing, material verification, and functional checks before shipment. In addition, our customer support team is available to assist with installation guidance, troubleshooting, and warranty claims, offering peace of mind that you are backed by a responsive and knowledgeable service network.

Our commitment to continuous improvement means we regularly gather feedback from riders and technicians to refine future iterations of the caliper. This collaborative approach ensures that the WEIYINGSI brand remains at the forefront of brake technology, delivering solutions that meet evolving rider expectations.

Key Features

• Gold‑finished aluminum housing provides superior corrosion resistance and heat dissipation for consistent braking performance.
• Rubber‑coated mounting plate and ambidextrous design enable easy installation on either side of the fork with a standard 44 mm spacing.
• Pre‑installed high‑friction brake pads deliver immediate stopping power and reduce setup time for riders.
• Lightweight construction at only 1.2 pounds improves overall bike handling without compromising strength.
• Dedicated after‑sales support ensures assistance with installation, maintenance, and warranty coverage.

FAQ

What size forks does this caliper fit?

The caliper is designed for forks with a 44 mm center‑to‑center mounting spacing, which is common among many 70‑125cc dirt and pit bikes. Always verify your fork’s specifications before purchase.

Do I need to replace the brake pads after installation?

The caliper ships with brake pads already installed. While they are ready for immediate use, it is recommended to inspect pad wear after the first few rides and replace them when the friction material reaches the minimum thickness indicated by the manufacturer.

Can I install this caliper on a left‑hand drive bike?

Yes. The ambidextrous mounting plate is engineered to accommodate both left‑hand and right‑hand drive configurations, making the caliper versatile for a wide range of bike setups.

Is bleeding the brake system required after installation?

Absolutely. After mounting the caliper, you should bleed the hydraulic system to remove any trapped air, which ensures optimal brake response and prevents sponginess.

What warranty does the caliper come with?

WEIYINGSI offers a one‑year limited warranty covering manufacturing defects. For detailed warranty terms, please refer to the documentation provided with the product or contact our support team.