M-Power
Old School Grand Master
Plenty of Yeti FROs and other high end premium thin walled steel frames of this era ‘can have’ rust issues, its nothing unique to steel FATs no drain hole accepted. I always turned my 89 steel FAT upside down and dried the seat tube out over night in a warm room and used frame saver = zero rust issues. I rode it countless times through mud,streams, touring in the Irish rain etc I have owned 6 Yos and only one had rust issues as the previous London DJ owner didn't look after it properly. I would highly recommend investing in a coiled up inspection camera with a light to check inside any frame before purchase. They are around £20-30 using you own smart phone.
Good tip! I just wasn't tuned into this being a larger problem with Fat Chance than I initially thought. Though, I have been out of the biking culture for a few years and the general problem area of 'seat tube - water bad' fell off my radar. I do have an oscilloscope too.
