S40 - getting acquainted

[Jamon Smallgoods]

On the S40 bottom bracket housing there is a mounting (?) bracket / flange with 2 holes in it.

I’ve seen that the smaller hole can be used for a light mount stub, what is the purpose of the other larger hole?

 

[Mathew Fy]

purpose of the other larger hole

probably cut out to save weight

 

[Skyy1]

On the S40 bottom bracket housing there is a mounting (?) bracket / flange with 2 holes in it.

I’ve seen that the smaller hole can be used for a light mount stub, what is the purpose of the other larger hole?

The larger hole on the S40 bottom bracket housing is likely for a chain guide or a similar accessory mount. It provides a spot for extra components that could help with chain management or other frame accessories.

 

[Amasso]

On the S40 bottom bracket housing there is a mounting (?) bracket / flange with 2 holes in it.

I’ve seen that the smaller hole can be used for a light mount stub, what is the purpose of the other larger hole?

The larger hole is usually for internal cable routing or a wiring pass-through, depending on the setup. Some people also use it for custom mounts.

 

[Skyy1]

Y

The larger hole is usually for internal cable routing or a wiring pass-through, depending on the setup. Some people also use it for custom mounts.

Yep