Just thought I would share an issue I experienced when fitting a PF41 Bottom Bracket to my Giant Anthem x29er.
I know it must be an issue these days with so many ‘standards’ in the bike business to sell a product that fits all makes. But thought would share this with you as Giant are obviously one of the numerous brands that make use of the Pressfit standard.
I replaced the Shimano XT pressfit unit as the drive size cups seem to have a habit of squeaking.
To fit the Hope PF41 I also purchased the Hope installation tool.
The issue is with the dimensions of the Giant bottom bracket shell and the interference with the inner part of the PF41 non-drive side cup.
The outer diameter of inner section of the non-drive side cup is I measured it 37.5mm. The centre bore for of the Giant bottom bracket shell is c.36.5 / 36.25mm as best I could measure. Therefore the non-drive side cup can not be pressed in fully (c.3-4mm gap) as there is a interference. I would have liked to say I measured and checked all this before fitting the part, but I didn’t ha!
Here are some pictures that perhaps explain:
Click for PDF of pics
pdf since onedrive has helpfully prevented static urls for BB code..
I have sent the note to Hope to see what they think, could just be a case of bicycle ‘standards’ strike again..