Length chain (in cm)

Length of a motorcycle chain lock

When it comes to the length of a motorcycle chain lock, it’s mainly about practical usability: you need to be able to secure your bike to a fixed object while still carrying the lock easily.

What length is enough?

A good rule of thumb is:
minimum 120–150 cm
but 130–180 cm is ideal for most situations.

Why these lengths?

• Less than ~120 cm: often too short to securely lock your bike to a pole or fence. You are limited to locking only the rear wheel (less secure).
• Around 130–150 cm: enough to connect the frame + rear wheel to an object without being too hard to carry.
• Up to ~180 cm: more flexibility for larger objects, but heavier and less convenient to transport.

Practical guidelines

• 130–150 cm – Best balance between usability and portability
• 150–180 cm – Extra length for difficult parking situations
• <120 cm – Often too short for secure locking
• >180 cm – Can become too heavy and impractical

Tip for daily use

A chain lock should not only be long enough, but also easy to carry:

• Consider a protective sleeve or carrying strap
• Some riders combine a U-lock + chaine for extra flexibility

Summary

Aim for a length between 130 and 180 cm — the ideal balance between security and convenience.