Hi folks - So a friend just generously gave me his barely used Topline road crankset - he's going sram red and lightening up his already only 19lb steel Ritchey. Anyway, these spiders are very flat and I have no idea what size spindle to use, length, symmetrical or non. He can't remember. Though I've read elsewhere they are JIS, it seems to me from inserting both type spindles to where his spindle marks end, it looks very iso. My digital caliper agrees. Anyway, if anyone KNOWS the specs iso or jis and length, symm or assym, and can spare me some experimentation , my gratitude will be yours. Mike