Facebook Twitter LinkedIn Pinterest Bluesky Threads I am looking for a dual chainring option for my Brompton as we are going to climb several routes in the coming months. Will this work? by fuegolds Bicycle Bicycling Bike Biking Brompton Bicycle Brompton Bike Brompton Folding Bicycle Brompton Folding Bike Cycling Folding Bicycle Folding Bike
fuegolds on January 17, 2026 10:02 am DESIRE-621-TT-1 Road bike crank sprocket description: CRANK LENGTH:170MM CHAINRING: 53-39T BB SETS: PW-BB68 COMPATIBILITY: 10S, 11S B.C.D.: 130MM CHAINLINE: 43.5MM CHAINRING MATERIAL: ALLOY CHAINRING FINISH: 100% CNC MACH., BLACK SAND ANO. (53T) CNC DETAIL, BLACK SAND ANO. (39T) Q-FACTOR / I-FACTOR: 152/ 123MM
a0ba5e5c8fd122566f79 on January 17, 2026 10:02 am Just swap the chainring. I can confirm the H&H 50/33 working.
2 Comments
DESIRE-621-TT-1 Road bike crank sprocket description:
CRANK LENGTH:170MM
CHAINRING: 53-39T
BB SETS: PW-BB68
COMPATIBILITY: 10S, 11S
B.C.D.: 130MM
CHAINLINE: 43.5MM
CHAINRING MATERIAL: ALLOY
CHAINRING FINISH: 100% CNC MACH., BLACK SAND
ANO. (53T)
CNC DETAIL, BLACK SAND ANO. (39T)
Q-FACTOR / I-FACTOR: 152/ 123MM
Just swap the chainring. I can confirm the H&H 50/33 working.