Measure your cranks spindle diameter
You need to make sure the bottom bracket bearing size will match your cranks’ spindle diameter. For example, if you have eeWings, then any of our Hellbender 110 bottom brackets will work because they are 30mm bearing options only, and eeWings have a 30mm spindle diameter. Our Hellbender 70 30mm options will also work with eeWings. If you have a SRAM Dub crank, then any of our 29mm Hellbender 70 bottom brackets will be compatible with your cranks.
You must also ensure that you will have enough available crank spindle length to pass through the bottom bracket and frame, with a little extra breathing room to preload the system.
A general rule when confirming compatibility with cranks and frames: if it’s a road bike, use a road bike specific crankset. If it’s a mountain bike, use a mountain bike specific crankset. However, not all bottom brackets and cranks are designed around the same specifications. For example, a press-fit style bottom bracket can have external bearings where the bearings are housed in a bottom bracket cup that sits outside of the bottom bracket shell (FIGURE 1.0),
Or it can have internal bearings where you press bearings directly into the open bore of the bottom bracket shell (FIGURE 2.0),
PF30 Hellbender 70
PF41 / 92 Hellbender 70
If you were to try and install a crankset that was designed for a BB30 with internal bearings, on a BB30 bottom bracket that has external bearings, the cranks spindle would not pass through the bottom bracket and frame.
All Cane Creek bottom brackets have external bearings, with the exception of our PF41/ 92 Hellbender 70 bottom bracket.