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
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
KANGXYSQ Square Taper Crankset 152mm 165mm 170mm Crank Arm Set With 32T 34T 36T 38T Narrow Wide Tooth Chainring Set Mountain Bike Aluminum Alloy Left And Right Crank(Gold,38T,170mm)
ETC Left Hand Crank Arm Diamond Taper 165mm Alloy Crank Arm
