Yamaha YFZ450R Sport Style A-Arm Kit
Pairs well with
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.
Thank you for trusting us with your order! This product is shipped directly from the manufacturing warehouse to get to customers all over the U.S. as soon as possible!
While many of our products are prepared and shipped out within 48 hours, some of our items are built to order or require custom pieces that could take 2-6 weeks to prepare before shipping! Please contact us at 888-884-2234 for a delivery ETA if you have a strict timeline.
Thanks!
Omaha Sports & Games Team
Returns & Refunds Policy
Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at service@omahasportsandgames.com.
If your return request is accepted, it will be up to you as the buyer to return the item in its original packaging, unworn and unused. You as the buyer will be responsible for paying the return shipping. We may be able to assist you in scheduling a pickup for return but the payment will still be your responsibility. You can always contact us for any return question at service@omahasportsandgames.com.
All products are subject to a minimum 15% restocking fee based on the quality of the returned product and packaging.
Items opened, tested, used, or any other non-new condition may be eligible for return based on the manufacturer's return policy.
Shipping Damages and Issues
You must inspect your order upon reception and refuse delivery if you see damage. DO NOT sign for delivery if there is apparent damage to the product. If you sign for the delivery and later claim shipping damage, there is very little we can do to help.
If your order does not require signing at delivery and is instead just dropped off at doorstep with damage, contact us immediately with photos of the damaged boxes.
If your item(s) is defective, damaged or if you receive the wrong item, contact us immediately so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, such as custom products, special orders or personalized items. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items, gift cards, or multiple product bundle discounts.
| Specification name | Specification Value |
|---|