

🚴♂️ Ride Strong, Ride Smooth — The ACS PAWS 4.1 Freewheel Means Business
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.
| 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 |
J**N
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.
C**T
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.
A**H
Junk Part
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.
M**A
Rides Really Smooth
Fits perfectly on my flip-flop hub. It rides very smooth. The volume of the cassette clicking is not too loud. Perfect alternative to my fixed gear cog.
A**R
Some ghost issue
Maybe I just got a bad part, but mine ghosts (peddle rotates if I remove my feet). Not really a big deal, but still...
M**R
Very nice!!
Good quality for price!!! A bit loud but solid construction, and performance.
E**C
Sturdy
This freewheel takes a beating. It lives on my 50+ mph motorized bike.
S**M
Not good.
I have both the 18t and 22t and they have the same issue. Pawls skip under high torque every now and then with a loud pop, even on the first rides (singlespeed MTB). Not good. It's worse than the Shimano MX for sure.
D**.
Es un producto de excelente calidad y cumple mis expectativas!!!!
S**V
Loudest freewheel I've owned (don't need bell). Not the smoothest. I use it on a single speed.
Trustpilot
2 weeks ago
2 months ago