Wheels of Happiness
Rizal Philippines
February 26, 2018
Cut out view of BB 30 shell and crank
I got enamored with a GS and I was able to buy one cheap only to find out that its crankset is BB 30. BB 30 is short and adopted to mostly to Cannondale. It was invented by Cannondale. It consist of bearing only pressed fit into the bottom bracket shell vs a circlip engaged in the slot in the shell. BB 30 cranks are fit only to BB 30 bikes! Its cranks are short....74 mm.. So with BB386. Some cranks are not interchangeable with one another. Some cranks are 30 mm in diameter, some are 24 and 22 mm (like the one I bought) Things get more complicated if you go to MTB where BB shells can be or 86.5 or 91mm. But Shimano cranks seem to be adopted to many shells.
Kaya pala walang bumili noong GS na iyon na BB30. Now its my problem if the crank will fit my bike (hindi Cannondale)
BB 30, BB 386 BB 865 make for stronger crank BB set up and is much lighter. vs the traditional two piece BB or threaded BB shell (the thread makes the BB shell heavier) However, the pressfit thing requires special tool for installation and removal... Only few bike shops and few mechanics know the PF.
Before jumping in to buy a crank set, ask questions and verify. Like me I cant return the crankset. I have to buy a new one (a 24 mm crank diameter) 104 mm long (the BB30 crank spindle is only 74 mm.. long (being BB30 crank)
A lot of mechanics and sellers are not very familiar yet with this. Those who are selling cranks cant answer too.
The buyers too must not sell their crank or GS if they will not fit the bike of the buyer.
Salamat po
BB chart compatibility
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