good buy or...........goodbye

good buy if you install once the right way and leave them alone.  sunset bb to go with it.   Very light and good price at ff but finish is soft and scratches easily.   Make sure to get the corrct cog the first time so u dont have to take apart and rebuild.

any pis of any built up....especially the backside of the sprocket....really not sure of how sprocket mounts onto crankarm.................

The worst thing of the older version is the sprocket with thread.The sprocket strips,and then you get lots of problems.The new version allows normal sprocket,and I think NOW theyre AWESOME!

i have the old ones, i love them, i realy doo  plus its for your girlfriend im sure she wont strip the sprocket,she probily wont put them through total hell like i do. but the sprocket it such a pain in the ass to remove, you need to cut if off like i did, i had the 16 tooth, please dont get it, get 20T