I'm moving and trying to pare down my bikes. I want to try to save my old technium that I rode in high school, so I'm building it up to be one of my two bikes (a fixie being the other). The frame originally used 27" wheels and I have a nice set of mavic rims on sealed suntour cyclone hubs I can use. If I use them, I can use a nice set of dual pivit brakes. If I run the 700c wheels (entry level shimano non-sealed 2200 hubs with alex rims), I have to use a mis-matched set of old brake calipers. It looks like there is more than enough fender clearance with either set. I'm wondering if the benefit of the sealed hubs outweigh the possible problems of finding tires/freewheels down the road.