Falken WildPeak A/T4W 1.9 Tires: Mounting and Compound FAQ
By Vanquish Products - Premium RC Crawler Kits & Accessories | Published: 2026-11-01
Category: Product Reviews
Straight answers on mounting Falken WildPeak A/T4W 1.9 tires on beadlocks, what the red compound grip really feels like, and how to set up the included open-cell foam.
Quick answer
Mount the Falken WildPeak A/T4W 1.9 tires on 1.9 beadlock wheels with the included open-cell foam, then treat the red compound as a soft, ready-to-run tire that trades long-term wear for grip on rock and scale terrain.
What the 4.75-inch height changes on your rig
At 4.75 inches tall and 1.5 inches wide, this is a relatively tall, narrow 1.9 tire. That shape clears more ground under the axle than a shorter tire, but it also raises your center of gravity and changes how the truck sits on sidehills. Check shock preload and body clearance before you commit to the height.
The narrow width keeps the tire from rubbing the chassis and links on tight scale builds, but it also means less flotation in loose dirt or sand. If you crawl mostly on rock, the narrow profile helps place the tread where you want it.
Why the red compound is a grip-first choice
The red compound is Vanquish Products' super soft rubber, and the catalog describes it as offering excellent performance right out of the package. Soft rubber conforms to edges and small features, which is why it works well on rock and technical lines. The trade-off is wear: a super soft tire will not last as long on hot pavement or high-speed runs as a harder compound.
That makes this tire a poor match for a truck that spends most of its time on asphalt or gravel at speed. It is a better fit for a scale crawler that sees rock, roots, and slow technical driving.
Mounting and setup questions, answered
- Will these fit my 1.9 beadlock wheels?
- They are designed for a 1.9-inch wheel bead diameter, so they fit standard 1.9 beadlock wheels. Test-fit the bead by hand before tightening ring screws, and tighten in a cross pattern so the bead seats evenly. If the bead will not seat by hand, stop and check that the wheel is a true 1.9 beadlock rather than forcing the ring down.
- Should I use the included open-cell foam?
- Yes, for most scale crawling. The included medium-density open-cell foam supports the sidewall and keeps the tire from folding under load. If you run a heavy rig or want a firmer sidewall, you can swap to a stiffer insert, but start with the included foam and adjust from there. Foam choice changes sidewall support more than tread pattern does, so test one change at a time.
- How does the red compound handle wet rock?
- Soft rubber generally conforms well to wet rock, but no compound replaces cleaning your treadlines. Clear mud and grit from the tread before a run, and expect the soft rubber to wear faster if you spin the tires on dry rock. Inspect tread wear after each session; soft compound wear is the main long-term cost.
- Do I need to glue these tires?
- No. These are beadlock-style tires that clamp between the wheel ring and bead, so you do not glue them. That also means you can remove them later to change foam or rotate tires. Beadlock mounting lets you tune foam without destroying the tire.
- What terrain are they not suited for?
- High-speed pavement running and hot asphalt are hard on super soft rubber. If your truck is a trail runner that sees a lot of speed on hard surfaces, a harder compound will last longer. Match the compound to how you actually drive, not just how the tire looks.
Product facts
- Falken WildPeak A/T4W 4.75" 1.9 Tires (2) Red Compound: The Falken WildPeak A/T4W 1.9 tire measures 4.75 inches tall, 1.5 inches wide, and fits a 1.9-inch wheel bead diameter. Those dimensions tell you whether the tire will clear your body and links before you mount it.
Falken WildPeak A/T4W 4.75" 1.9 Tires (2) Red Compound - Falken WildPeak A/T4W 4.75" 1.9 Tires (2) Red Compound: The package includes two tires and two open-cell foam inserts in the super soft red compound. You get a complete pair with foam, so you can mount and run without sourcing inserts separately.
