Nexus Sprocket Twenty Tooth For Internal Gear Hubs And Coaster Brakes Compatible With One Eighth And Three Thirty Seconds Chains SG 3R40 Ready For Bikes Upgrade Your Ride

Single twenty-tooth sprocket for internal hubs and brakes
✔️ 20-tooth sprocket for internal hubs and coaster brakes; 1/8 or 3/32 chain

This twenty-tooth sprocket is designed for bikes with internal gear hubs or coaster brakes. It works with 1/8" and 3/32" chains and is SG-3R40 ready, matching compatible cogs for smooth operation.

✅ 20-tooth sprocket for internal gear hubs and coaster brakes
✅ Compatible with 1/8" and 3/32" chains
✅ Fits 3-tabbed coaster brakes or internally geared hubs
✅ SG-3R40 ready; Shimano Alfine compatible cogs
✅ カラー：シルバー
✅ Release date: 01-03-2012

💡 What is a sprocket for internal gear hubs and coaster brakes used for in a bicycle drivetrain?

These parts transfer pedal power to the rear wheel in hub-driven systems, enabling smooth, reliable gearing without a derailleur.

• Commonly used with 1/8" or 3/32" chains for compatibility
• Designed for 3-tabbed coaster brakes or internally geared hubs
• SG-3R40 compatibility helps ensure proper meshing with cog sets