Just bought a 1991 Miyata 1000 LT. It's got a biopace crank on it w/ gearing way higher than what I could handle on a loaded bike. I'd like to get something like a 22-32-44 set of rings. What kind of crank would that be? I'm only familiar w/ road cranks and they're 110-74 BCD so the smallest ring I've ever had is a 24t. Any crank recommendations out there for low gearing?