mrkawasaki
Retrobike Rider
Alien SP
Hey Arran, I'm rebuilding an Alien SP at the moment and have found that the drive side BB shell has an angled in face (where a normal BB shell is flat). This suggests to me that an unusual BB was used originally (1990), something with a flange to mate to this machining. Do any of your ACXs (which have the same front triangle) feature this?
Mr K
Hey Arran, I'm rebuilding an Alien SP at the moment and have found that the drive side BB shell has an angled in face (where a normal BB shell is flat). This suggests to me that an unusual BB was used originally (1990), something with a flange to mate to this machining. Do any of your ACXs (which have the same front triangle) feature this?
Mr K