--- product_id: 143274693 title: "ACS BMX Paws 4.1 BMX Freewheel,18T" brand: "acs" price: "AR$166885" currency: ARS in_stock: true reviews_count: 5 url: https://www.desertcart.com.ar/products/143274693-acs-bmx-paws-4-1-bmx-freewheel-18t store_origin: AR region: Argentina --- # Fits standard 1.37" x 24tpi hub 3-pawl design, 12° engagement Cold forged chromoly steel ACS BMX Paws 4.1 BMX Freewheel,18T **Brand:** acs **Price:** AR$166885 **Availability:** ✅ In Stock ## Summary > ⚡ Ride Hard, Engage Faster, Last Longer! ## Quick Answers - **What is this?** ACS BMX Paws 4.1 BMX Freewheel,18T by acs - **How much does it cost?** AR$166885 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/143274693-acs-bmx-paws-4-1-bmx-freewheel-18t) ## Best For - acs enthusiasts ## Why This Product - Trusted acs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Seamlessly fits standard 1.37" x 24tpi hubs—upgrade without hassle. - • **Tool-Friendly Removability:** Quickly swap or service with a standard 4-prong tool—no mechanic needed. - • **Built to Endure High Torque:** Cold forged chromoly steel ensures durability that keeps up with your most intense rides. - • **Precision Engagement Every 12°:** Experience lightning-fast response with 30-step pawl engagement for unmatched control. - • **Nickel-Plated for Corrosion Resistance:** Sleek silver finish that stands up to the elements and looks sharp on any bike. ## Overview The ACS BMX Paws 4.1 Freewheel features a robust three-pawl design delivering engagement every 12 degrees for precise control. Crafted from cold forged chromoly steel, it offers exceptional strength and durability. Designed to fit standard 1.37" x 24tpi hub threads, it’s nickel-plated for corrosion resistance and easily removable with a standard 4-prong tool, making it the perfect upgrade for BMX riders seeking reliability and performance. ## Description ACS threaded freewheels that are focused on durability for standard thread applications. Three-pawl design provides engagement every 12 degrees (30 steps total). Removable with standard 4-prong tool. Nickel plated sprocket ring fits 1/8‚Äù and 3/32‚Äù chains. Cold forged for high-torque strength, and increased durability. Fits Standard 1.37" x 24tpi hub threads. Item Specifications: Color: Silver, Weight: 181.4, Cassette Body Type: Threaded Standard 1.37" x 24tpi, Freewheel Teeth: 18, Chain Compatibility: 3/32", keyword search: Crossfire, ## Features - Three-pawl design provides engagement every 12 degrees (30 steps total) - Cold forged for high-torque strength, and increased durability - Fits Standard 1.37" x 24tpi hub threads - Removable with standard 4-prong tool ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B071FS1V8P | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | 760,998 in Sports & Outdoors (See Top 100 in Sports & Outdoors) 1,464 in Cassettes & Freewheels for Bikes | | Brand Name | ACS | | Colour | Silver | | Compatible With Vehicle Type | Bicycle | | Customer Reviews | 4.2 4.2 out of 5 stars (56) 4.2 out of 5 stars | | Exterior Finish | Nickel Plated | | Global Trade Identification Number | 00816411002423 | | Included Components | freewheel | | Item Diameter | 1.37 Inches | | Item Weight | 0.45 Pounds | | Manufacturer | Hawley LLC | | Manufacturer Part Number | 63858-0000 | | Material Type | Chromoly Steel | | Model Number | 63858-0000 | | Oem Equivalent Part Number | [POSSIBLE: 63856-0000, 210000136513] | | Pitch Circle Diameter | 0.04 Inches | | Rim Size | 1.37 Inches | | Size | 1.37 inches | | Unit Count | 1.0 count | | Upc | 816411002423 | ## Product Details - **Brand:** ACS - **Exterior finish:** Nickel Plated - **Item diameter:** 1.37 Inches - **Item weight:** 0.45 Pounds - **Material:** Chromoly Steel - **Pitch circle diameter:** 0.04 Inches - **Rim size:** 1.37 Inches - **Size:** 1.37 inches - **UPC:** 816411002423 - **Vehicle service type:** Bicycle ## Images ![ACS BMX Paws 4.1 BMX Freewheel,18T - Image 1](https://m.media-amazon.com/images/I/51I5iK-M97L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Es un buen producto *by on Reviewed in Mexico 18 August 2020* Es un producto de excelente calidad y cumple mis expectativas!!!! ### ⭐⭐⭐⭐⭐ Sturdy, sounds good, priced right *by on Reviewed in the United States 20 July 2019* I use this on my single speed cyclocross bike on the freewheel side of my flip flop hub. It has very slightly higher rolling friction than the stock freewheel, it will ghost pedal as you roll the bike. It isn't an issue as far as coasting speed, however. It has a good sound, not too loud but definitely audible. Super sturdy, works really well with 1/8 inch chain. I recommend this freewheel, it is a super good value. ### ⭐⭐⭐⭐ Ratatat *by on Reviewed in Canada 29 October 2019* Loudest freewheel I've owned (don't need bell). Not the smoothest. I use it on a single speed. ## Frequently Bought Together - ACS BMX ACS Paws 4.1 BMX Freewheel,18T - Park Tool FR-6C Sprocket Puller Tool BMX 4 Notch --- ## 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.com.ar/products/143274693-acs-bmx-paws-4-1-bmx-freewheel-18t](https://www.desertcart.com.ar/products/143274693-acs-bmx-paws-4-1-bmx-freewheel-18t) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-11-09*