SPEC AS FOLLOWS.....Zoo lynx 4 bolt. Zoo bars, try all nuc stem. GU disk forks. hope mono trial on front. Front hope disk hub on a echo urban rim. zhi rear hub on a echo urban rim with gold nipples. same as front. Echo BB on try all cranks[iSIS]. khe collapse chain. try all sticky tires.echo lite bash plate. try all 108 freewheel. fsa pig headset,