to change sizes (of bike)


Senior Member
Canadian English

I recently got a new bike, but the first one I got was the wrong size. I had to take it back in to exchange it for a slightly smaller one. How would you say this in Chinese? Would you say "我得(=not sure how to put this verb in the past tense)换(个?)大小."?
(Is 大小 the appropriate word here?)

Thanks! :)
  • Thanks, Skating-in-bc, Winston97 and hx1997! 😃

    How about 换尺寸? Does that sound ok too? (I think 尺寸 is more formal than 大小, right?)