---
product_id: 66874517
title: "BMX ACS Paws 4.1 BMX Freewheel,18T"
brand: "acs"
price: "€ 35.14"
currency: EUR
in_stock: true
reviews_count: 10
category: "Acs"
url: https://www.desertcart.ie/products/66874517-bmx-acs-paws-4-1-bmx-freewheel-18t
store_origin: IE
region: Ireland
---

# Standard 1.37" x 24 TPI thread fit Cold-forged steel for max torque Three-pawl engagement every 12° BMX ACS Paws 4.1 BMX Freewheel,18T

**Brand:** acs
**Price:** € 35.14
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Ride Strong, Ride Smooth — The ACS PAWS 4.1 Freewheel Means Business

## Quick Answers

- **What is this?** BMX ACS Paws 4.1 BMX Freewheel,18T by acs
- **How much does it cost?** € 35.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/66874517-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 bicycle's driveline with the ACS PAWS 4.1 Freewheel - a durable, high-performance 18-tooth nickel-plated freewheel designed for reliability and efficiency in standard thread applications. Crafted for serious cyclists and mechanics, this freewheel combines advanced materials and engineering to deliver smooth engagement and long-lasting performance. Materials & Construction: Made from cold-forged steel, the ACS PAWS 4.1 freewheel ensures high-torque strength and enhanced durability, making it ideal for everyday commuting, touring, and BMX riding. The nickel-plated sprocket ring not only provides corrosion resistance but also offers a sleek, polished finish that resists rust and wear over time. Performance & Engineering: Featuring a precision three-pawl mechanism with engagement every 12 degrees (30 engagement points), this freewheel guarantees reliable power transfer, quick acceleration, and smooth pedaling. Its compatibility with both 1/8 and 3/32 chains makes it versatile for a wide range of cycling styles and setups. Components & Technology: Designed with standard 1.37" x 24 TPI hub threading, the ACS PAWS 4.1 ensures a secure fit and straightforward installation. The removable design allows for easy maintenance or replacement using the included Crossfire 6-Spline Tool, minimizing downtime and simplifying service. Style & Use Case: With a sleek silver finish, this freewheel combines classic style with modern performance, perfect for cyclists seeking a durable upgrade for their standard thread hubs. Ideal for BMX bikes, track racing, and urban commuting, it provides a reliable, high-torque solution to enhance your riding experience. Innovative & Differentiating Features: The cold-forged construction and nickel plating set the ACS PAWS 4.1 apart from standard freewheels, offering superior strength, corrosion resistance, and longevity. Compatible with standard tools and easy to remove, it's the perfect choice for bike mechanics and enthusiasts looking fo

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

- Durable Nickel-Plated Sprocket Ring: Constructed from materials, this ACS PAWS 4.1 freewheel features a nickel-plated sprocket ring compatible with 1/8" and 3/32" chains, ensuring reliable performance on various cycling setups.
- Cold-Forged for High-Torque Strength and Longevity: Engineered with cold forging technology, this freewheel delivers exceptional strength and durability, making it ideal for aggressive riding, mountain biking, and everyday commuting.
- Precise Engagement with Three-Pawl Design: The innovative three-pawl mechanism provides confident engagement every 12 degrees, offering smooth and responsive power transfer for improved pedaling efficiency and ride control.
- Standard Thread Compatibility and Easy Removal: Designed to fit standard 1.37" x 24tpi hub threads, this freewheel is easily removable with a common 4-prong Crossfire 6-spline tool, simplifying installation and maintenance.
- Stylish Silver Finish with Versatile Use Cases: Featuring a sleek silver aesthetic, the ACS PAWS 4.1 freewheel is perfect for BMX, track bikes, or any bike requiring a reliable, high-performance threaded freewheel component.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071FS1V8P |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #215,510 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #167 in Bike Cassettes & Freewheels |
| Brand | ACS |
| Color | Silver |
| Customer Reviews | 4.0 4.0 out of 5 stars (58) |
| Date First Available | June 1, 2017 |
| Global Trade Identification Number | 00816411002423 |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 1.37 Inches |
| Item model number | 63858-0000 |
| Manufacturer | Hawley LLC |
| Manufacturer Part Number | 63858-0000 |
| Model | PAWS 4.1 Freewheel |
| OEM Part Number | [POSSIBLE: 63856-0000, 210000136513] |
| Pitch Circle Diameter | 0.04 Inches |
| Size | 1.37 inches |
| UPC | 816411002423 |
| Vehicle Service Type | Bicycle |
| 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

![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

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-20*