7 cm is longer than 68 mm.
Bottom bracket numbers typically indicate the measurements and specifications of the bottom bracket used in a bicycle. These numbers often include the shell width (in millimeters), the threading type (like BSA or Italian), and the diameter of the bottom bracket shell (such as 68mm or 73mm). Additionally, it may specify the type of spindle (like square taper or external) and the compatible crankset. Understanding these numbers is crucial for selecting the correct bottom bracket for a bicycle frame and crankset compatibility.
68mm = 6.8cm
The recommended size for a 68mm threaded bottom bracket for your bicycle is 68mm.
The recommended size for a bottom bracket to be used with a 68mm bottom bracket shell is 68mm.
The recommended size for an English threaded bottom bracket that is compatible with a 68mm shell width is 68mm.
The recommended size for a BSA threaded bottom bracket that is compatible with a 68mm bottom bracket shell is 68mm.
The recommended size for a bottom bracket to fit a frame with a 68mm BSA bottom bracket shell is 68mm.
68mm.
6.8cm (divide mm by 10)
0.068 cc
S = A/6 S + A = A/6 + A = 68MM 7/6 A = 68MM A = (6/7) times 68MM = 58.286 MM (rounded)
To determine the compatibility of a BSA 68mm bottom bracket with your current bike frame, you need to check if your frame has a BSA bottom bracket shell with a width of 68mm. If your frame meets these specifications, the bottom bracket should be compatible with your bike.
The recommended spindle length for a 68mm bottom bracket is typically around 110-113mm for most road bikes and 113-118mm for most mountain bikes.