The R51/3 is the 2nd huge displacement post war motorbike that BMW was allowed to produce after the war.This matching number example has been carefully and precisely recovered and has had hardly any running time since the restoration. Rare and gorgeous, it has the one-year-only front brake center (complete width brakes 7.9), aluminum rims and right saddle. As held true with later 54s, this one has the brake light switch assembly.