Can a Shimano crankset (24 mm spindle) be used on a PF30 shell?
Yes, with an adapter bottom bracket. The PF30 has a 46 mm internal diameter and was designed for 30 mm spindles, but PF30→24 mm bottom brackets exist that let you fit Shimano 24 mm spindle cranksets. Check the shell width (e.g. 68 mm road).
Standards involved
What you need — before you buy
- They are compatible — but still confirm against your exact model and year before buying; small revisions can change the fit.
- Match the part to your exact hub/frame: check brand, model and year. Don't choose a freehub body or component by standard name alone.