Lone Star Racing ATV & UTV

Yamaha YFZ450R Sport Style A-Arm Kit

Regular price $845.00 USD
Sold out
Color: No Finish

Pairs well with

Yamaha YFZ450R Sport Style A-Arm Kit
$845.00 USD
No Finish
30-Day Money-Back Guarantee
Lowest Price Guarantee - Find a lower price and we'll beat it!
Our experts

Need Help? Chat With Our Experts

We live and breathe the games we sell

Yamaha YFZ450R Sport Style A-Arm Kit


Description

The Lone Star Racing Sport Style A-Arm Kit for the Yamaha YFZ450R is a precision-engineered suspension upgrade built for riders who demand more from their machine. Widened by +3/8" per side with no forward placement, these A-arms deliver improved stability and handling without requiring major chassis modifications. Constructed from 4130 chromoly steel, they offer the kind of strength and rigidity that serious ATV riders and racers rely on. Designed to fit only the fuel-injected YFZ450R and YFZ450X models, this kit integrates seamlessly with factory mounting points using the stock inner pivot tubes.

Whether you're running tight desert trails, dunes, or competitive tracks, this kit gives you the suspension geometry to push harder and corner with confidence. The Sport kit is compatible with stock-length shocks out of the box, though aftermarket shocks are recommended to fully take advantage of the added width.


Key Features

  • +3/8" Width Per Side: Increases overall front track width for improved stability and cornering performance.
  • 4130 Chromoly Steel Construction: High-strength alloy tubing provides superior rigidity and durability under demanding race and trail conditions.
  • Quick Camber Adjustment: Allows fast, precise camber tuning to dial in handling for different terrain and race setups.
  • Quick Caster Adjustment: Easy caster adjustment lets you fine-tune steering feel and stability without extensive disassembly.
  • Stock Shock Compatibility: Works with factory-length shocks so you can run the kit immediately - upgrade to aftermarket shocks for optimal performance.
  • Factory Inner Pivot Tubes: Uses stock inner pivot tubes at mounting points for a clean, reliable fitment with no major modifications required.
  • YFZ450R & YFZ450X Fitment: Specifically engineered for fuel-injected YFZ450R and YFZ450X models only.
  • Lifetime Warranty: Backed by Lone Star Racing's lifetime warranty (excluding wear items), reflecting the confidence they put into every kit.
  • No Forward Placement: Maintains stock front-end geometry placement while delivering the width advantage where it counts.

What's Included

  • Lone Star Racing Sport Style A-Arm Kit (upper and lower A-arms)

Why You'll Love It

Lone Star Racing has built a reputation among ATV enthusiasts and racers for producing suspension components that are tough enough to handle the most punishing riding conditions. The YFZ450R Sport Style A-Arm Kit is a trusted upgrade for riders who want a real performance edge without losing the convenience of stock shock compatibility. The chromoly steel construction means these arms won't flex or fail when you need them most, and the quick-adjust camber and caster features make setup changes fast and frustration-free at the track or in the garage. The lifetime warranty is a testament to the quality built into every weld and tube. If you're serious about getting the most out of your YFZ450R or YFZ450X, this is the suspension foundation to build on.


Product Specifications

View Product Specs
Brand Lone Star Racing ATV & UTV
Material 4130 Chromoly Steel
Width Increase +3/8" per side
Forward Placement None
Shock Compatibility Stock length shocks (aftermarket recommended)
Mounting Uses factory inner pivot tubes at mounting points
Vehicle Fitment Fuel-injected Yamaha YFZ450R and YFZ450X only
Warranty Lifetime (excluding wear items)
Finish Options No Finish, Gloss Black, Flat Black, Candy Red, Candy Blue, Gloss White, Silver Metallic, Custom Color

FAQ

Will this kit fit my YFZ450R with a carbureted engine?

No - this kit is designed specifically for the fuel-injected Yamaha YFZ450R and YFZ450X models only. It will not fit the older carbureted YFZ450 variants. If you have a carbureted YFZ450, Lone Star Racing does offer a separate Sport Style A-Arm Kit designed for that model.

Can I run my stock shocks with this kit?

Yes, the Sport kit is compatible with stock-length shocks, so you can install and ride right away. However, Lone Star Racing recommends upgrading to aftermarket shocks to fully compensate for the additional track width and get the best possible handling and suspension performance.

Do I need any special hardware or tools to install this kit?

The kit uses the factory inner pivot tubes at the mounting points, which simplifies installation significantly. Standard ATV mechanical tools are typically sufficient. As with any suspension modification, professional installation or at minimum a thorough alignment check after installation is strongly recommended.

What does the Lifetime Warranty cover?

Lone Star Racing backs these A-arms with a lifetime warranty against defects in materials and workmanship. Wear items such as rod ends, bushings, and bearings are excluded from the warranty, as these are consumable components expected to be replaced with regular use and maintenance.

How long will it take to receive my order?

While stock is maintained when possible, some products may have a lead time of 10 weeks or more depending on availability. If your order is time-sensitive, we recommend contacting us before placing your order to confirm current stock levels and estimated shipping timelines.

Product specifications table
Specification name Specification Value

Recently viewed