


⚙️ Ride the smoothest spin with ACS precision power!
The ACS Main Drive Single Speed Freewheel (16T x 1/8-Inch) is a robust, alloy steel replacement part designed for BMX, fixed gear, and single-speed bikes. Featuring a 16-tooth gear and dual-pawl system that engages every 18 degrees, it ensures reliable, smooth pedaling. Compatible with standard 1.375"-24tpi hubs and 1/2" x 1/8" chains, it’s easily installed and removed using traditional BMX 4-prong freewheel tools. Ideal for low-torque applications, this freewheel delivers dependable performance for everyday riders seeking quality and value.
| Brand | ACS |
| Material | Alloy Steel |
| Recommended Uses For Product | low-torque applications, specifically for fixie bikes |
| Roller Diameter | 0.13 Inches |
| Specification Met | Value-priced Freewheels With Assured Quality for Everyday Use |
| UPC | 816411001563 |
| Global Trade Identification Number | 00816411001563 |
| Item Package Dimensions L x W x H | 2.95 x 2.8 x 0.87 inches |
| Package Weight | 0.15 Kilograms |
| Item Dimensions LxWxH | 2.75 x 2.75 x 0.75 inches |
| Item Weight | 0.25 Pounds |
| Brand Name | ACS |
| Color | Silver |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Manufacturer | ACS |
| Part Number | 63609-1000 |
| Style | Does Not Apply |
| Included Components | Single-Speed Freewheels |
| Size | 16T X 1/8-Inch |
| Skill Level | Intermediate |
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