40T (4 teeth less than Brompton's smallest chainring), for ultra-low gearing; 25-78 gear inches. (Brompton 44T 29-88 gear inches)

Precise CNC machined.

Integral machined aluminum chainguard.

7075 Aero Spec Aluminum with T6 heat treatment, lightweight yet ultra strong and durable.

Weight - 120g

Color - Black