Seatpost Short by 2cm

maklabouhlel · 17 Jan 2017 at 10:38

Hi, I need a new seatpost for my son's Giant Defy road bike. He is 5'7" and purchased a small. He's reached a point where he can't lengthen the seatpost anymore without exceeding the minimum insertion line by 2cm. The diameter is 30.9mm, what size do you recommend I should replace it with? I'm not sure about the current length of the seatpost. Many thanks.

maklabouhlel · 17 Jan 2017 at 11:30

BennyC said:
How old is he and how much more growing does he have to do?

Remove and measure the existing seatpost, buy a longer one.

If the fit for the rest of the bike is still fine it'll do until he needs a larger frame size.

Thanks BennyC, he's 18 now so I don't think he's going to grow any more.

maklabouhlel · 17 Jan 2017 at 11:32

Begbie said:
2cm bigger than the current seatpost.

lol...he's taken the bike with him to Uni so I don't know what the current length is.

maklabouhlel · 17 Jan 2017 at 12:50

BennyC said:
Find out what the stock length is?

Will do, thanks.