I have no idea but I am usuing one on my girlfriend's SS with a 115mm shimano (italian) cartridge BB with the chainring on the inside. so a 115mm should work as a double I would think... JIS taper....maybe even a 113mm since I am using a conventional freewheel on a 126mm wheels with spacers and one 18t cog on the very end of the suntour freewheel. I hope that makes sense.
EDIT: just checked and I am running the ring on the outside, so assuming it is JIS taper the original BB should be around 114mm
1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear
Last edited by cyclotoine; 10-21-08 at 02:51 PM.