Lone Star Racing ATV & UTV
Yamaha YFZ450R DC-4 A-Arm Kit
Yamaha YFZ450R DC-4 A-Arm Kit
Search matches make and model, not model year.
We don't have year-by-year fitment listed for this part yet. If you're not certain it fits your machine, ask us first — it takes a minute and saves a return.
Not sure? Text your year, make and model to 719-428-6837 or use Build Concierge and we'll confirm the right part. Freight-heavy parts can't be returned cheaply, so it's worth asking. Need a factory part instead? We can order OEM parts for any major make.
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Why Buy From SxS Network?
Located at Pikes Peak International Raceway, home of Adrenaline Park and Peak Adrenaline. We run many of these parts on our personal Maverick R and X3 rigs.
Not sure what fits your build? Call or text Tim directly at 719-428-6837. Real riders, real advice — no call centers.
Based in Fountain, CO. Support a Colorado business that actually rides.
Most orders leave the manufacturer in 1–2 business days — no middle warehouse, no re-boxing. Ship-by date shown above.
Product Description
The Lonestar Racing DC-4 A-Arms are +3/8" wider with no forward placement per side. They are made from 4130 chromoly steel for superior strength and feature our quick camber and quick caster adjustments. They also feature our caster corrector bracket to correct caster change throughout the travel. The DC-4 kit requires long travel shocks. The A-Arms are backed by our Lifetime Warranty.(excluding wear items)
- Shock Specs:
20" Extended Length
5.25" Shaft Travel
2.0:1 Leverage Ratio
- Reuses factory inner pivot tubes on lower A-Arms
- Must run spacer if using Precision Steering Stabilizer. Can be purchased here https://lsracing.com/products/yamaha-yfz450r-precision-stabilizer-spacer
Instructions: YFZ_R_DCPRO-DC-4_A-arms.pdf (shopify.com)
