6 Hole
Keyed Hub Shaft Axle Adapter Hub comes with 12 threaded holes Includes 6
screws 6 self lock nuts, for either 48MM pitch-row or 50mm pitch-row
Sprocket&brake disc.
Inner diameter of 5/8" Alex Key included.
Made of alloy steel with hardening treatment&galvanization Durable quality.
On Nov 11, 2025 at 10:25:00 PST, seller added the following information: