Description
Traction Is Not Optional. It Is A Philosophy.
When your SCX10 III is side-hilling at forty-five degrees on a weathered granite slab, every micron of play in your drivetrain translates to centimeters of unwanted lateral drift. The Grapple Forge hub eliminates that play at the source — the wheel-to-hex interface — with a billet aluminum body machined to tolerances that would satisfy a Swiss watchmaker. These are not cast hubs. They are not stamped. They are carved from solid 6061-T6 aluminum on a 5-axis CNC, and the difference is felt the moment you tighten the beadlock ring.
Designed for 1.9-inch and 2.2-inch beadlock wheels, the Grapple Forge covers the full ecosystem of 1/10 scale crawlers: Axial SCX10 (all generations), Traxxas TRX-4, RC4WD Trail Finder, Element Enduro, Redcat Gen8, and the Cross-RC Demon series. The 12mm hex interface is broached to a zero-backlash fit, meaning throttle input translates to forward motion without the rotational slop that softens technical line choices. When you are feathering the trigger to creep up a near-vertical ledge, the last thing you need is half a degree of dead rotation before the tire bites.
The aesthetic is purposeful. The KMC XD-series-inspired spoke pattern is not just cosmetic — the open-channel design sheds mud, sand, and water that would otherwise pack into the wheel barrel and throw rotational balance off-axis. The anodized finish (available in gunmetal and machined silver) resists the chemical aggression of tire glue, silicone oils, and the alkaline dust of desert trail runs. Each hub ships with stainless steel M2.5 hardware — 25 screws per wheel — and a hex driver adapter for installation.
For competition drivers in SORRCA Class 2 and Class 3, the weight distribution of the Grapple Forge matters as much as its mechanical precision. At 45 grams per hub (1.9-inch variant), the rotating mass sits low in the wheel assembly, lowering the center of gravity without adding unsprung weight to the axle housing. The result is a planted feel on off-camber lines without the bouncy, unsettled behavior of chassis-mounted ballast.
Whether you are building a scale D90 that lives on a display shelf or a comp-ready Capra that lives on the rocks, the wheel hub is the one component that connects your drivetrain to the terrain. The Grapple Forge makes that connection absolute.
The rock does not care about your plans. Your wheels should.
Technical Specifications
- Brand Name : NONE
- For Vehicle Type : Cars
- High-concerned chemical : None
- Is Batteries Included : Yes
- Is Electric : No Battery
- Is it battery/power supply : N
- Is it charger/adapter : N
- Material : Metal
- Model Number : 1.9 2.2
- Origin : Mainland China
- Recommend Age : 14+y,3-6Y,6-12Y
- Size : 1/10
Frequently Asked Questions
Q: Will these fit my Traxxas TRX-4 with stock wheels?
A: Yes — the 1.9-inch variant fits all standard 1.9" beadlock wheels with a 12mm hex interface, including stock Traxxas TRX-4 wheels. The 2.2-inch variant is for 2.2" wheels common on comp crawlers and the TRX-4 Sport kit with aftermarket wheels. Please verify your wheel's internal diameter accepts a standard 12mm hex hub before ordering.
Q: Do I need special tools for installation?
A: Each hub ships with a hex driver adapter. You will need a standard 1.5mm hex driver (not included) for the M2.5 hardware. Installation takes approximately 10 minutes per wheel for first-time users. A YouTube installation guide is available on our product support page.
Q: What is the weight of each hub?
A: The 1.9-inch hub weighs 45 grams (±2g). The 2.2-inch hub weighs 58 grams (±3g). Both variants are CNC-machined from 6061-T6 aluminum, which provides an optimal strength-to-weight ratio for crawling applications.
Q: Can I run these without beadlock rings?
A: The Grapple Forge is designed exclusively for beadlock wheel systems. The hub face provides the mounting surface for your beadlock ring — without the ring installed, the tire bead will not be secured. Compatible beadlock rings with a matching bolt circle are available from most aftermarket RC brands (Injora, RC4WD, Yeah Racing, SSD).
Q: How many wheel hubs are included per order?
A: Each order includes four (4) hub assemblies — one full set for a complete crawler. Spare M2.5 screws (5 extra) are included. Individual replacement hubs can be ordered separately through our spare parts listing.
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