I believe these are from a Sherpa T blue bike so most likely an M 198 or an M 199.

I don’t think this is Frontera - but if it is let me know and I will change the listing.

What a great spare for the trials rider or if you trail ride your Sherpa T.

Looks like blue paint is original and has the Bultaco decal on top.

Nut screws on stem threads easily.

I don't know if this will fit other Bultaco bikes.

You can be the judge of that.

Look very close - no returns please. 

I am clearing out my storage unit.  What you see is what you

Thank you :-)

 Shipping for 13.99. USA Ground Advantage.