21T Nexus Sprocket For Internal Hubs And 3 Tabbed Coaster Brakes, Compatible With 1/8 Or 3/32 Chains, SG-7C20 Style Cog For Alfine And Nexus Hubs, Built Tough Steel, The Perfect Gear Upgrade For City Commutes And Weekend Rides

21-tooth sprocket for internal hubs and coaster brakes
✔️ 21-tooth cog fits 1/8in or 3/32in chains and 3-tabbed coasters

This 21-tooth sprocket is designed for internal hub systems and 3-tabbed coaster brakes, ideal for city commutes and weekend rides.

✅ 21-tooth sprocket for internal hubs and 3-tabbed coaster brakes
✅ Compatible with 1/8in and 3/32in chains
✅ SG-7C20-style cog for internal hubs
✅ Steel construction for durability and long wear

💡 What is a long-tail question about a 21-tooth sprocket for internal hubs and 3-tabbed coaster brakes?

Handy answer helps shoppers understand compatibility and setup.

- Works with 1/8in and 3/32in chains - Fits 3-tabbed coaster brakes and internal hubs with SG-7C20-style cog - Durable steel construction for daily commuting - Easy replacement and maintenance for city riding