Mountain Biking - Seat post size

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Brueg

02-20-11, 10:54 AM

When I bought my bike a 2008 Iron Horse Azure Sport I downloaded the specs. It says (Seat Post: EASTON EA30, 31.6MM) ,but on the side of the seatpost it says 27.2
Is there something simple I'm not understanding here.

mechBgon

02-20-11, 11:37 AM

The only way both could be correct, is if someone added a reducer shim to allow use of the popular 27.2mm post size in a frame made for 31.6mm. If the frame doesn't have a shim, then the specs are incorrect.

Brueg

02-20-11, 11:46 AM

No shim, Thanks