[asphaltgambler]

^^^^^^^^^^^^^ the above is correct - XR 750's were never sold to public, they were race bikes only with no titles. Interesting factoid is they were assembled and shipped and looked just like it was ready-to-ride...........................................but they were not. In fact is was understood that as a racer you would get the bike and then immediately disassemble the entire bike including the engine and then start over. If you tried to start the engine as shipped it would probably self destruct in 2 mins.

The race 750 had aluminum barrels, heads with completely different valve angles, combustion chamber design, piston dome, better valve geometry, etc. They were not equipped with any type of self starting or charging system. - For those who may laugh at what that is - you should google power output in competitive race trim in that era...............impressive

The bike that was sold to the public was a 1000cc iron Sportster in an slightly updated frame with cafe racer style sheetmetal.

Now - there is a very rare late XR1200cc that was based on the Evo style engine. Those are really serious street machines. With a little tuning easily could achieve over 100HP at the wheel and 80+ ftlbs of torque as well. Now the frame, weight and geometry it was good but no contemporary sport bike in the twisty's - but moderate curves with straight-line acceleration was bad@ss.........................