Hey Everyone,

I just scored a 2002(3)-ish Cannondale R400 frameset off Craigslist for a song. It also came with an unexpected Cyclops SL+ Powertap (not a bad haul for $60). From the serial number the bike is 2002 - according to catalogs and pictures I can find it looks more like 2003. However; both those models list a 1 inch steerer. I measured it today with calipers and it comes out to 1.12inch (1 1/8).

It seems like I should just trust the calipers but if the specs say 1 inch- which measurement should I go with? The calipers are new but I cannot imagine they are wrong- maybe I'm measuring the steerer wrong? I measured the outside diameter of the steerer.

Thanks for the input!