The KMC K1 is a narrow 1/2″ x 3/32″ single speed chain with 112 links. Its patented K-shaped plates help it withstand high impacts, making it a strong choice for fixies, single speed and dirt jump bikes.
Single speed bikes put all your power through one gear, and hard efforts can stretch or damage a basic chain. The K1 is built tougher for cyclists who push hard.
K-shaped plates
KMC’s patented K-shaped plates help the chain withstand high impacts.
High torsion strength
A special dynamic plate configuration resists twisting under load.
Stretch proof pins
Mushroomed pins with stretch proof treatment help the chain last longer.
Anti-drop design
Helps keep the chain securely on the sprockets.
Frequently Asked Questions
Which bikes does it suit?
Single speed bikes with 3/32″ sprockets, such as fixies, single speeds and dirt jump bikes.
How many links?
112 links.
Do I need a connecting link?
Join it with a 3/32″ single speed connecting link or a chain tool.
Item specs
- Brand: KMC
- Model: K1
- Speed: Single speed
- Size: 1/2″ x 3/32″ (narrow)
- Length: 112 links
- K-shaped plates, anti-drop design
- Colour: Silver






















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