Bike Forums - View Single Post - Drilling a hole in the BB

01-12-23 | 11:01 AM

#5

Bill Kapaun

Really Old Senior Member

Joined: Feb 2007

Posts: 14,679

Likes: 1,916

From: Mid Willamette Valley, Orygun

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3

A lot of cable guides were mounted with a screw through the bottom of the BB on older bikes.
It often interfered when when installing a cartridge type BB on a bike that was originally equipped with a cup & cone type.

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