Originally Posted by
Moe Zhoost
If your current BB is working for you, there is no compelling reason to switch. IMO, the only advantages for a cartridge are no adjustment and no maintenance.
If you do switch at some time, be aware that you may have spindle taper issues. The Sunrace and Shimano BBs have JIS tapers. Many cranks may not work with them.
Honestly didn't even cross my mind. It's an older Diamondback Outlook, nothing fancy including the stock crankset. Would it be safe to assume it is JIS? (ISO would really only come into play with European or higher end stuff?)