Theory Legacy Narrow-Wide Sprocket Description:
The Theory Legacy Narrow-Wide Sprocket blends a clean, classic 6-spoke look with modern drivetrain performance. Machined from durable 6061 aluminum, this 32T sprocket features a narrow-wide tooth profile designed to improve chain retention and reduce the chance of derailment during hard riding. While it is compatible with standard 3/32" chains, the tooth profile is optimized for modern 9–12 speed chains, which feature a slightly narrower internal width for a more precise chain interface. A 15/16" bore with included spindle adapters ensures compatibility with common crank sizes, making it a reliable choice for street, park, and trail-inspired BMX setups.
Features:
- Narrow-wide tooth profile improves chain retention under load
- Optimized for modern 9–12 speed chains while remaining 3/32" chain compatible
- Classic 6-spoke design with laser-etched detailing
Specifications:
- Teeth: 32T
- Material: 6061 Aluminum
- Bore: 15/16"
- Adapter: 19mm and 22mm Included
- Chain Compatibility: 3/32" (optimized for 9–12 speed chains)
- Color: Lime Green
- Weight: -
While you're at it, no better time to go ahead and toss on a new chain. See our selection of
chains here.
Not sure which sprocket will work on your bike? Confused by all the sizing and gear ratios? Learn all about sprockets and how to install them in our tech help section here.
This product was added to our catalog on February 5, 2026
