I have a handlebar and stem that I removed from an early 80s (83 I think) Bianchi 980 road bike. The bars are 25.4 SR Sake Custom Road Champion, extremely common. The stem however has 105 embossed in the 22.2 part that goes into the steering tube, which I'm sure is the length. It has a beveled slider lock and says Japan near the limit scribes. The pinch bolt is on the bottom, not the front like an SR.
It says aRX on the quill with the lower case a and the stylized x exactly like the logo on a Sun Tour aRX rear derailleur. I have found no information on any aRX quill stem made by Sun Tour. Does anyone know anything about this stem?
It says aRX on the quill with the lower case a and the stylized x exactly like the logo on a Sun Tour aRX rear derailleur. I have found no information on any aRX quill stem made by Sun Tour. Does anyone know anything about this stem?