Description
Product Overview
The BRGMAX rear swingarm pivot bolt is a direct‑fit replacement for Honda TRX450 series motorcycles. Crafted from high‑quality iron, the bolt offers exceptional tensile strength while the zinc‑plated coating protects against moisture and road‑salt corrosion. Engineered to match OEM specifications (90121‑HN1‑000, 90305‑GE8‑003, 52101‑HP1‑000), it includes the bolt, nut, and washer in a single package, ensuring a complete and hassle‑free installation. Dimensions of 11.34 x 1.22 x 1.22 inches and a weight of 12.2 oz make it compact yet robust, suitable for the high‑stress environment of off‑road swingarm articulation.
Usage
Designed for the rear swingarm pivot on Honda TRX450ER, TRX400EX, and TRX450R, this bolt is ideal for riders who demand precise handling and durability on rugged trails. Whether you are rebuilding a worn swingarm, performing routine maintenance, or upgrading for better corrosion resistance, the BRGMAX bolt delivers a seamless fit that restores original geometry. It is also suitable for mechanics and DIY enthusiasts who need a reliable part that meets factory tolerances without the need for custom machining.

Why Choose Us
BRGMAX stands for quality and consistency in the motorcycle aftermarket. Each bolt undergoes a rigorous heat‑treatment process to achieve optimal hardness, followed by a zinc‑plating step that meets ISO corrosion standards. Our parts are backed by a 12‑month warranty and a network of certified distributors, ensuring you receive genuine components with traceable batch numbers. By choosing BRGMAX, you avoid the uncertainty of generic fasteners and benefit from a product that has earned a 4.1‑star rating from over 45 verified customers.
Key Features
- High‑strength iron construction for maximum load capacity
- Zinc‑plated finish provides superior corrosion resistance in wet and salty conditions
- Exact OEM fit for Honda TRX450ER, TRX400EX, and TRX450R swingarm assemblies
- Includes bolt, nut, and washer for a complete replacement solution
- Backed by a 12‑month warranty and positive customer reviews
FAQ
Will this bolt fit other Honda models?
The bolt is specifically engineered for the TRX450ER, TRX400EX, and TRX450R swingarm pivot. While it may physically thread into similar models, we recommend confirming part numbers to ensure proper fit and safety.
Do I need any special tools to install the bolt?
Standard metric socket and torque wrench are sufficient. Follow the service manual torque specifications (typically around 30 Nm) to avoid over‑tightening.
Is the zinc plating durable enough for extreme off‑road use?
Yes, the zinc coating meets ISO 2082 standards and is designed to withstand harsh environments, including mud, water, and road‑salt exposure.
Can I reuse the original nut and washer?
For optimal performance we include a new nut and washer. Reusing old hardware may compromise the seal and torque integrity, especially if they show signs of wear or corrosion.
What is the warranty coverage?
BRGMAX offers a 12‑month limited warranty covering manufacturing defects. The warranty does not cover damage caused by improper installation or external factors.






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