the new stronglights are iso spindles like campy and miche. however if you stick em on a jis spindle they won't go down as far, and to get a prefect chainline you might have to get a slightly narrower bb spindle,maybe 3-4mm. if you don't wnat to go overseas, call up veloshop in portland, www.veloshop.org . molly runs a great business has great prices on track stuff and as an aside, regularily laps the geared category riders at cross.