twintwin had a go when he installed LL on his 1150 it wasn't easy, it's on one of his threads about installing them. Besides being the poorest guy on this forum I'm also the least educated, I never realized how handy math and geometry where until I hung out in a welding shop. The problem with sidecars is it's all subjective one mans perfect was another mans horrible. The Bills over at HP where allot more straightforward made drawings kept records etc nice guys . Since we're way off the beaten path here, the LBS Ural conversion is very nice Mikepa nothing minimalist about that sub frame and mounting hardware.