The KMC S1 is a single-speed chain suitable for use with internally geared hubs, or any single speed drivetrain. - High pin power with reinforced durability - Offers a quieter riding experience - Anti-drop design - Inner plate chamfering helps to provide fast and smooth shifting - Internal gear hub system compatible - Links (links): 112 - Color: Silver - Width: 9.3mm - Drivetrain Speeds: Single Speed 1/2 x 1/8-inch - Half Link Chain: No

KMC X12 chains feature a double X bridge shape for fast and smooth shifting. - Compatible with SRAM 12-speed systems - Double X bridge shape with inner and outer plate chamfering for smooth and fast shifting - Mushroom riveted pins for the highest pin power and allows shifting under heavy loads - 1/2 x 11/128 - 126 Links

The KMC Z1eHX chain is suitable for a variety of single speed riding styles, such as BMX and fixed gear, fitness bikes, track bikes, internally geared hubs, and eBikes. - Features a heavy duty structure and stretch proof treatment for high pin power with reinforced durability - Anti-drop design reduces possibility of chain drop - eBike compatible - Links (links): 112 - Width: 7.8 mm - Drivetrain Speeds: Single Speed - Chain Connection Type: Single Use Master Link - Designed for ebike: Yes

Z6 is a basic, affordable replacement chain for use on 6 and 7 speed bikes. - Features inner plate chamfering to smooth shifting - Z-bridge shape - Links (links): 116 - Width: 7.3 mm - Drivetrain Speeds: 6 , 7 - Chain Connection Type: Reusable Master Link

Z7 is a basic, affordable replacement chain for use on 6 and 7 speed bikes. - Features inner plate chamfering to smooth shifting - Z-bridge shape

The KMC e1 Chain is suitable for single-speed riding styles such as eBike, track bikes, and internally geared hubs. - Maximum durability for eBike usage with unparalleled rigidity and strength - Added chamfering for smooth operation - Double X bridge shape for precise gear shifting - Mushroomed riveting provides high pin power - Inner plate chamfering allows for expeditious shifting