

⚙️ Ride Strong, Shift Smooth — Own the Streets with ACS Paws 4.1!
The ACS Freewheel PAWS 4.1 is a high-performance, nickel-plated single-speed freewheel engineered for durability and precision. Featuring cold-forged steel construction and a three-pawl mechanism with 12-degree engagement, it ensures smooth power transfer and reliable shifting under high torque. Compatible with standard threaded hubs and multiple chain sizes, it offers versatile installation and maintenance ease, making it ideal for mountain biking, commuting, and aggressive riding styles.
| ASIN | B071WB2MCV |
| Best Sellers Rank | #143,702 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #99 in Bike Cassettes & Freewheels |
| Brand Name | ACS |
| Color | Black |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.5 4.5 out of 5 stars (213) |
| Exterior Finish | Black |
| Global Trade Identification Number | 00816411002409 |
| Included Components | Single-Speed Freewheels |
| Item Diameter | 1.37 Inches |
| Item Weight | 159 Grams |
| Manufacturer | ACS |
| Manufacturer Part Number | 63856-0000 |
| Manufacturer Warranty Description | Limited Warranty |
| Material Type | Multi |
| Rim Size | 16 Inches |
| Rim Width | 5 Inches |
| Size | 1/8" |
| UPC | 816411002409 |
| Unit Count | 1.0 Count |
| Wheel Size | 16 Inches |
A**T
Great replacement
Replaced an OEM for a 6KU flip-flop which had broken and was skidding. Huge positive difference--smoother and quieter with barely any vibrations at all. Great value for the price!
V**E
Good quality
Works well. No complaints. It looks cool with a nickel plated chain on a black frame.
D**N
Best deal on this freewheel ive found
Does what its supposed to. Minimal slack. Not too noisey.
M**N
For the Price, Fills the Need
Good quality freewheel that is easy to install and seems to work perfectly. Why drop a star? Definitely not a quiet freewheel and neighborhood dogs can hear me coming from a block away. However, it is smooth and has no grinding to worry about.
D**0
Fits and a little more heavier duty than stock freewheel that always strips out
Fits for a razor sx 500/mx650 but to put the stock 80tooth gear on you have to grind the inside of it to fit over the acs freewheel. Spent about 20 minutes doing it with a drill bit attachment for metal. I will update if it strips out. Almost been a year and it is still holding up so I bought more for the other modded razors.
B**9
Great Flywheel
Works Great on my 2018 - 1988 Haro Team Master, Highly recommend and a very nice Flywheel.
M**S
Nice freewheel for the price
Feels better and smoother than a 10 dollar freewheel and for the price it looks like it competes with more expensive freewheels time will tell
B**.
Paws freewheel
Great freewheel nice close teeth
G**A
I've used quite a few freewheels by different makers, some cheap some very expensive. This one seems to have hit a sweet spot! Very strong, quiet, even though I ride hard and over 500km/month
J**E
gracias el producto esta excelente funcional y cumple con todas las expectativas nuevamente gracias
A**K
ラチェット音が心地よくて最高です 音も小さくてペダル止めるのが癖になります
TrustPilot
1 周前
1 个月前