--- product_id: 512343636 title: "Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack)" brand: "hobbypark" price: "$159.85" currency: USD in_stock: true reviews_count: 5 category: "Hobbypark" url: https://www.desertcart.us/products/512343636-hobbypark-front-and-rear-heavy-brass-outer-portal-covers-weights store_origin: US region: United States of America --- # 40mm outer diameter fit 73.5g heavy brass weight CNC precision machining Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack) **Brand:** hobbypark **Price:** $159.85 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your crawler’s edge with heavyweight precision! ## Quick Answers - **What is this?** Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack) by hobbypark - **How much does it cost?** $159.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/512343636-hobbypark-front-and-rear-heavy-brass-outer-portal-covers-weights) ## Best For - hobbypark enthusiasts ## Why This Product - Trusted hobbypark brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete 4-Pack Value:** Front and rear covers included to fully upgrade your crawler’s weight balance. - • **Effortless Installation:** Two-screw setup means you’re back on the trail faster with no hassle. - • **Heavy-Duty 73.5g Weight:** Optimizes your TRX4/TRX6 crawler’s center of gravity for superior stability. - • **Direct Factory Replacement:** Seamlessly swaps plastic covers with premium brass for enhanced performance. - • **Precision CNC Machined Brass:** Engineered for exact fit and durability, no spacers needed. ## Overview Hobbypark’s Front and Rear Heavy Brass Outer Portal Covers add 73.5g each to your TRX4 or TRX6 crawler, lowering the center of gravity and boosting obstacle stability. CNC machined for a perfect fit, these durable brass covers replace factory plastic parts with a premium, easy-to-install 4-pack set. ## Description Note:The color of the item may vary slightly due to photography and your own computer /Phone Please allow some little manual measurement error. Customer Satisfaction Guarantee If you are not 100% completely satisfied with our products, please do not hesitate to contact us to request a refund or exchange! Note:Check your specific model's manual for compatibility,or Contact us. Review: Were very easy to put on, two screws, seem of good quality. I highly recommend. Edit: I would suggest using +3mm hexes with these portal weights, my 2.2 RC4WD wheels did not seat all the way on the stock hexes. I don't know about other wheels. Review: Ces contre poids s'emboîtent parfaitement aux autres contre poids de la marque AMK que j'ai déjà sur mon trx4. Je les recommande pour ajouter beaucoup de poids. ## Features - 【Material】Quality Brass,Heavy Duty,Approx 73.5g/pc,add weight to vehicle,lowering center of gravity,increase stability when passing obstacles - 【Dimensions】Outer Diameter: 40mm/1.57inch; Inner Diameter: 20mm/0.79inch - 【Easy to install 】CNC machined for precision.Direct replacement for factory plastic steering knuckles Portal Gear Cover, No need spacers. - 【Why choose us】Great Value, You will receive 4 Pieces, Front and Rear. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BJPH2RVS | | Age Range Description | Kid | | Brand Name | Hobbypark | | Color | Single Color | | Customer Reviews | 4.8 4.8 out of 5 stars (30) | | Educational Objective | STEM | | Included Components | Brass Outer Portal Drive Housing(4), Mounting Screws | | Is Assembly Required | No | | Item Dimensions | 8 x 8 x 2 centimeters | | Item Type Name | Portal Covers | | Manufacturer | HobbyPark | | Manufacturer Minimum Age (MONTHS) | 168.00 | | Manufacturer Part Number | 11201 | | Material Type | Brass | | Model Number | 11201 | | Operation Mode | Manual | | Power Source | battery powered | | Size | S | | Theme | Off-Road | ## Images ![Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack) - Image 1](https://m.media-amazon.com/images/I/61QC2-UmhBL.jpg) ![Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack) - Image 2](https://m.media-amazon.com/images/I/710yKpAiMSL.jpg) ![Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack) - Image 3](https://m.media-amazon.com/images/I/81r+62xwG8L.jpg) ![Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack) - Image 4](https://m.media-amazon.com/images/I/71wGOTlDEQL.jpg) ![Hobbypark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73g/Each (4-Pack) - Image 5](https://m.media-amazon.com/images/I/61qPD+aG1eL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***R on 25 July 2025* Were very easy to put on, two screws, seem of good quality. I highly recommend. Edit: I would suggest using +3mm hexes with these portal weights, my 2.2 RC4WD wheels did not seat all the way on the stock hexes. I don't know about other wheels. ### ⭐⭐⭐⭐⭐ Review *by D***S on 21 March 2024* Ces contre poids s'emboîtent parfaitement aux autres contre poids de la marque AMK que j'ai déjà sur mon trx4. Je les recommande pour ajouter beaucoup de poids. ### ⭐⭐⭐⭐⭐ Review *by M***Y on 1 August 2025* Fit and finish was great. Such a simple weight upgrade, wish I knew about these sooner! ## Frequently Bought Together - HobbyPark Front and Rear Heavy Brass Outer Portal Covers Weights for TRX4 Upgrades fit TRX-6 Crawler, 73.5g/Each (4-Pack) - AMK TRX4 Brass Diff Cover 2PCS Front and Rear Axle Diff Cover TRX4 Portal Axle Housing for 1/10 RC Crawler TRX6 TRX4 Upgrade Parts - Hobbypark 87.8g/pc Heavy Duty Brass Front Bumper Servo Mount for Traxxas TRX-4 TRX4 1/10 RC Crawler Car Scale & Trail Truck --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/512343636-hobbypark-front-and-rear-heavy-brass-outer-portal-covers-weights](https://www.desertcart.us/products/512343636-hobbypark-front-and-rear-heavy-brass-outer-portal-covers-weights) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-27*