1997 spech rockhopper BB question
 

Ok guys, rescued a 1997 rockhopper, everything original but the saddle.

Cleaned it, adjusted brakes and brifters... today removed the BB and looks like the BB is rusted inside and since i cant seem to get oil inside of the sealed unit I might be better putting something else so now the question....

THe BB shell is 68 mm, the BB cartridge is a specialized that says 107 - 73 (73 shell 107 axle) LN 52 (imagine chainline?). the crankset is the stock specialized triple that was made by sugino.

Crankset is a triple but cant figure it out if the BB installed is ISO or JIS... surprise me that is super short being used in a triple crankset eventhought the driver side has a 1 or 2 mm shim.

Anybody knows or remember if the crankset is iso or jis? A modern replacement could be a UN shimano BB maybe in 109? but again... the tapper could be a problem... anybody remember these bikes?

Thanks.

Answer the question myself. after testing just fit with different BBs looks like the crankset is jis...