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⚡ Upgrade your ride with the ACS PAWS 4.1 — power, precision, and durability in one sleek freewheel!
The ACS BMX ACS Paws 4.1 BMX Freewheel (18T) is a high-performance, nickel-plated sprocket engineered for aggressive cycling and BMX use. Featuring cold-forged steel construction and a 3-pawl engagement system with 30 engagement points per revolution, it delivers quick, smooth power transfer. Compatible with standard 1.37" x 24 TPI hubs and both 1/8 and 3/32 chain sizes, it offers versatile fitment. Its removable design with a Crossfire 6-spline tool simplifies maintenance, while the corrosion-resistant finish ensures long-lasting durability and a professional appearance.
| 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 |
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 buen producto
Es un producto de excelente calidad y cumple mis expectativas!!!!
S**V
Ratatat
Loudest freewheel I've owned (don't need bell). Not the smoothest. I use it on a single speed.
Trustpilot
5 days ago
1 month ago