Yamaha YFZ450R High Clearance XC A-Arms
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Yamaha YFZ450R High Clearance XC A-Arms
Description
The Lone Star Racing High Clearance XC A-Arms for the Yamaha YFZ450R represent the pinnacle of cross-country suspension engineering, built from the ground up using direct feedback from top-level racers. Designed specifically for riders who demand maximum ground clearance and trail-ready durability, these arms tackle the most punishing terrain without compromise. Every element has been reconsidered and improved - from the fully boxed lower arm and shock mount to the upgraded polyurethane bushing system - making them the most capable XC a-arms available for the YFZ450R.
Whether you're running tight single-track or hauling through rocky open terrain, these arms keep your shock protected and your geometry dialed. The XC-specific width of -1 1/8" narrower per side with zero forward placement preserves familiar handling characteristics, meaning riders switching from Houser arms or the old-style DC-Pro's won't need to retune their shocks. Built from 4130 Chromoly and fully TIG welded, this is a lifetime investment in your machine's performance.
Key Features
- XC Geometry (-1 1/8" per side, zero forward placement): Maintains the proven cross-country width with no forward placement, so existing shock tuning carries over without adjustment.
- Fully Boxed-In High Clearance Lower Arm: Completely redesigned lower arm features a boxed shock mount and high clearance bend for maximum ground clearance and protection on the trail.
- Greasable Polyurethane Bushings: Replaces old pivot bearings and Delrin bushings with long-lasting, greasable poly bushings that extend service intervals and add compliance to absorb trail impacts.
- 4130 Chromoly Construction: Arms are built from premium 4130 Chromoly steel and are completely TIG welded for superior strength without added weight.
- Same Weight as Previous Arms: Weight is identical to the old-style arms, meaning you gain significant strength and clearance improvements at zero weight penalty.
- Universal Aftermarket Shock Compatibility: Shock mount is designed with clearance for all aftermarket shocks - requires a 20" extended-length shock.
- Caster Corrector Bracket & Spacers Included: Comes with the proven caster corrector bracket and caster spacers for proper front-end alignment right out of the box.
- Lower Shock Bolt Dust Caps: New dust caps on the lower shock bolt prevent mud and debris from packing inside the mount, reducing maintenance and wear.
- Compatible with Houser Arm Shocks: Riders transitioning from Houser arms can bolt up their existing shocks without modification.
- Lone Star Racing (LSR) Brand: Designed and built by one of the most respected names in ATV racing suspension - trusted by elite XC and GNCC-level competitors.
Geometry Options & Which to Choose
- Yamaha Geometry: Retains stock Yamaha YFZ450R spindle geometry for a direct, familiar fit. Best for riders running stock or Yamaha-spec spindles who want a straightforward upgrade without additional spindle modifications.
- LTR Geometry: Configured to work with LTR-style spindles, ideal for builds already running LTR spindles or riders looking to maximize compatibility with LTR front-end setups for added adjustability.
What's Included
- High Clearance XC A-Arm set (upper and lower)
- Caster corrector bracket
- Caster spacers
- Lower shock bolt dust caps
Why You'll Love It
These arms weren't designed in a vacuum - they were built by listening to elite racers and everyday riders, then engineering solutions to every complaint. The result is a set of XC a-arms that genuinely outperforms anything else on the market for the YFZ450R. The greasable polyurethane bushing system means you'll spend more time riding and less time wrenching, and the fully boxed lower shock mount gives you peace of mind on rocks, roots, and ruts that would punish lesser arms. No shock retuning, no weight gain, no compromises - just a stronger, smarter, better-protected front end. Trusted by top XC and cross-country racers, these arms are the last upgrade your YFZ450R front suspension will ever need.
Product Specifications
View Product Specs
| Fitment | Yamaha YFZ450R |
|---|---|
| Material | 4130 Chromoly Steel |
| Welding | Fully TIG welded |
| XC Width | -1 1/8" narrower per side |
| Forward Placement | None (zero forward placement) |
| Required Shock Length | 20" extended length |
| Bushing Type | Greasable Polyurethane |
| Geometry Options | Yamaha, LTR |
| Arm Color Options | Raw, Clear Coat, Semi-Gloss Black, Custom Color |
| LSR Badge Color Options | Raw Stainless Steel, Gloss Black |
| Assembly Required | Yes - installation required; instructions included |
| Shipping | Ships standard (not freight); lead time may be up to 10+ weeks if not in stock |
FAQ
Do I need to retune my shocks when switching to these arms?
No - the XC geometry on these arms matches the old-style DC-Pro's exactly, with the same -1 1/8" width per side and zero forward placement. Riders switching from DC-Pro's or Houser arms can reuse their existing shocks without any retuning required.
What shock length do these arms require?
These arms require a 20" extended-length shock. The shock mount is designed with clearance for all aftermarket shocks of this length, so you have full flexibility in your shock choice.
What is the difference between Yamaha and LTR geometry?
The Yamaha geometry option is set up for stock YFZ450R spindles, making it the straightforward choice for most builds. The LTR geometry option is configured for LTR-style spindles, which is ideal for riders already running or planning to run LTR spindles on their front end.
Why were Delrin bushings and pivot bearings replaced with polyurethane?
Greasable polyurethane bushings last significantly longer than Delrin bushings or standard pivot bearings, extending the time between service intervals. They also offer a small amount of flex and compliance, which helps absorb trail vibration and impacts before they transfer to the rider - a real advantage in cross-country racing conditions.
How long is the lead time if the product is out of stock?
Lead times can be 10 weeks or more when the product is not immediately available. If your build is time-sensitive, it is strongly recommended to call ahead and confirm stock or estimated availability before placing your order.
Can I get these arms in a custom color?
Yes - a Custom Color option is available. Simply select "Custom Color" when ordering and specify your desired color in the order notes. Custom color orders are priced at $1,700.00 and may have additional lead time.
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.
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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.
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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.
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