--- product_id: 66874517 title: "ACS BMX ACS Paws 4.1 BMX Freewheel,18T" brand: "acs" price: "35724CFA" currency: XOF in_stock: true reviews_count: 10 category: "Acs" url: https://www.desertcart.sn/products/66874517-acs-bmx-acs-paws-4-1-bmx-freewheel-18t store_origin: SN region: Senegal --- # Standard 1.37" x 24 TPI thread fit Cold-forged steel for max torque Three-pawl engagement every 12° ACS BMX ACS Paws 4.1 BMX Freewheel,18T **Brand:** acs **Price:** 35724CFA **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Ride Strong, Ride Smooth — The ACS PAWS 4.1 Freewheel Means Business ## Quick Answers - **What is this?** ACS BMX ACS Paws 4.1 BMX Freewheel,18T by acs - **How much does it cost?** 35724CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/66874517-acs-bmx-acs-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 - • **Sleek Silver Finish:** Nickel-plated sprocket ring resists corrosion while adding a polished, professional look to your bike. - • **Unmatched Durability:** Cold-forged steel construction ensures long-lasting strength for aggressive rides and daily commutes. - • **Effortless Maintenance:** Easily removable with a common 4-prong Crossfire 6-spline tool, minimizing downtime and hassle. - • **Seamless Power Transfer:** Precision three-pawl design delivers smooth engagement every 12 degrees for responsive pedaling. - • **Universal Compatibility:** Fits standard 1.37" x 24 TPI hubs and works with both 1/8" and 3/32" chains—versatility that keeps you rolling. ## Overview The ACS BMX PAWS 4.1 is a high-performance 18-tooth freewheel crafted from cold-forged steel with a nickel-plated sprocket ring for superior durability and corrosion resistance. Featuring a precise three-pawl mechanism with engagement every 12 degrees, it ensures smooth, responsive pedaling. Compatible with standard 1.37" x 24 TPI hub threads and both 1/8" and 3/32" chains, it’s designed for BMX, track, and urban bikes. Easy to install and maintain, this freewheel combines rugged strength with sleek style to elevate your ride. ## Description Upgrade your bike's performance with the ACS PAWS 4.1 Freewheel - 18t Nickel Removable, designed for durability, efficiency, and reliable gear engagement. This freewheel features precision cold-forged construction, ensuring exceptional strength and long-lasting durability for high-torque applications, making it ideal for aggressive riding, mountain biking, and BMX enthusiasts. Constructed with a corrosion-resistant nickel-plated sprocket ring, the ACS PAWS 4.1 is compatible with 1/8 and 3/32 chains, offering versatile use across various bike setups. Its advanced three-pawl design delivers engagement every 12 degrees (30 engagement points), ensuring quick and responsive power transfer, perfect for technical terrain and high-speed riding. Engineered with a standard threaded 1.37" x 24 TPI hub interface, this freewheel easily fits most standard hubs. Its innovative 4-notch removal system allows for effortless installation and removal using the included Crossfire 6-spline tool, streamlining maintenance and replacement processes. The sleek silver finish not only looks sharp but enhances corrosion resistance, maintaining a clean and professional appearance on any bike. Whether you're upgrading your mountain bike, BMX, or urban cruiser, the ACS PAWS 4.1 Freewheel combines rugged materials, advanced technology, and practical design to improve your cycling experience. Maximize efficiency, durability, and style with this reliable freewheel that's built to perform under demanding conditions. Keywords: ACS PAWS 4.1, freewheel 18t, nickel freewheel, removable freewheel, 1.37x24 TPI, 3/32 chain compatibility, high-torque freewheel, BMX freewheel, mountain bike freewheel, quick engagement, corrosion-resistant, crossfire removal tool, durable sprocket, cycling gear upgrade. Review: Sturdy, sounds good, priced right - 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. Review: Nice freewheel - It works great. I wish this had more contact points inside the mechanism for better responsiveness but overall a nice freewheel for the price. ## Features - High-performance nickel-plated sprocket designed for high torque applications, ensuring reliable power transfer and longevity on demanding rides. - Constructed from cold-forged steel for exceptional strength and increased durability, making it ideal for aggressive cycling, mountain biking, and BMX use. - Features a 3-pawl engagement system with 12-degree engagement points, providing quick and smooth power transfer with 30 engagement steps per revolution-perfect for responsive acceleration. - Compatible with 1.37" x 24 TPI threaded hubs and suitable for both 1/8 and 3/32 chain sizes, offering versatile fitment for a wide range of bicycles and drivetrain setups. - Equipped with a removable design using a standard 4-prong Crossfire 6-spline tool, allowing easy installation, removal, and maintenance for bike repair shops and enthusiasts alike. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071FS1V8P | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #419,991 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #377 in Bike Cassettes & Freewheels | | Brand | ACS | | Brand Name | ACS | | Color | Silver | | Compatible with Vehicle Type | Bicycle | | Customer Reviews | 4.2 out of 5 stars 58 Reviews | | Exterior Finish | Nickel Plated | | Global Trade Identification Number | 00816411002423 | | Included Components | Single-Speed Freewheels | | Item Diameter | 1.37 Inches | | Item Weight | 7.2 ounces | | Manufacturer | Hawley LLC | | Manufacturer Part Number | 63858-0000 | | Manufacturer Warranty Description | Limited Warranty | | Material | Multiple | | Material Type | Multiple | | Model Number | 63858-0000 | | OEM Equivalent Part Number | [POSSIBLE: 63856-0000, 210000136513] | | Pitch Circle Diameter | 0.04 Inches | | Rim Size | 1.37 Inches | | Rim Width | 9 Inches | | Seasons | all seasons | | Size | 1.37 inches | | UPC | 816411002423 | | Unit Count | 1.0 Count | | Wheel Size | 1.37 Inches | ## Product Details - **Brand:** ACS - **Exterior Finish:** Nickel Plated - **Item Diameter:** 1.37 Inches - **Item Weight:** 7.2 ounces - **Pitch Circle Diameter:** 0.04 Inches - **Rim Size:** 1.37 Inches - **Rim Width:** 9 Inches - **Size:** 1.37 inches - **Vehicle Service Type:** Bicycle - **Wheel Size:** 1.37 Inches ## Images ![ACS BMX ACS Paws 4.1 BMX Freewheel,18T - Image 1](https://m.media-amazon.com/images/I/51I5iK-M97L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sturdy, sounds good, priced right *by J***N on July 20, 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. ### ⭐⭐⭐⭐ Nice freewheel *by C***T on December 23, 2019* It works great. I wish this had more contact points inside the mechanism for better responsiveness but overall a nice freewheel for the price. ### ⭐ Junk Part *by A***H on May 9, 2024* The paws slipped out of the package. I put this on a 29er department store BMX because I did not trust the one that came on the bike; I should have stuck with the stock part. Cruising around town and clank clank. ## 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.sn/products/66874517-acs-bmx-acs-paws-4-1-bmx-freewheel-18t](https://www.desertcart.sn/products/66874517-acs-bmx-acs-paws-4-1-bmx-freewheel-18t) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-02*