I bought this to test crank length before purchasing and new groupset. Turns out I stuck with the 165 length in good condition with minimal wear to chainrings.
Shimano GRX RX600 Crank Arms 165mm long Left & right 10, 11, 12 speed black -New
Shimano 165mm Crank Arm Set for Ebike - STEPS FC-EM900 - EP8 Motor
ETC Left Hand Crank Arm Diamond Taper 165mm Alloy Crank Arm
Shimano FC-RS510 50-34 Crankset 10-11 Speed 172.5mm
Shimano FC-RS510 Chainset (172.5mm) 34+50t Hollowtech II Crankset 11s New BLACK
Pre load crank arm bolt cap M20 Shimano Hollowtech 2 Crank M20
