niner makes a 62cm reynolds steel frame
https://www.jensonusa.com/Niner-RLT-...Star-Bike-2020
save some $$ if you want to squeeze on a 59 an run setback seatpost
https://www.jensonusa.com/Niner-RLT-...STAR-Bike-2019
better sram build in 62 size
https://www.jensonusa.com/Niner-RLT-...xclusive-Build
Stem changes per arm/fit needs either size frame
change tires/wheels as needed. one guy on the B+ club ride uses lyskey gravel with 45mm tires. Doesn't slow him down and sure its a plush ride.