About Park Tool Bottom Bracket Tool Shimano/ISIS Drive 8 Notch BBT-18
The BBT-18 is a heavy duty, investment cast tool for installing and removing the following eight-notch bottom bracket cups:
Shimano Octalink- right cup with external notches
Note: The BBT-18 is an updated version of the current BBT-8. The outside diameter of the tool has been changed so it provides a universal fit on all Shimano and ISIS Drive eight-notch cups.+
The BBT-18 has 8 notches with an outside diameter of nominally 43.4mm. The inside-to-inside width is approximately 38mm. Each notch is approximately 3.9mm wide. The hole in the center of the casting is 22.5mm, and will not fit over the 30mm spindles.
More About The Manufacturer Park Tool
Park Tool has been manufacturing bicycle specific tools since 1963. Based out of St. Paul Minnesota, they are the world's largest bicycle tool manufacturer. A long-term dedication to quality, innovation, and customer service has made Park Tool the first choice of professional and home bicycle mechanics around the world.
Perspective is an important quality in any business. Our Park Tool's vision is shaped by more than 50 years of experience in the bicycle industry, beginning with retail stores. There they learned first hand the changing needs of quality bicycle repair and maintenance. The first Park Tool product in 1963 was a repair stand, Model PRS-1, so unique and useful that they were granted a U.S. patent. Park Tool now hold many patents on their tool line, which is nearly 300 products, the vast majority of which are manufactured here in America’s heartland.
But they are not standing still: Park Tool Co. continues to develop and refine bicycle repair tools and equipment to improve the service and eff