Forgive for my English. I didn't lower rear, difference not big, only 15mm.The front suspension is adjusted hard. The bike goes very steadily, no shimmy. Unfortunately I didn't understand the first question.what front brake reservoir is that? clean build too. did you lower the rear of the bike similarly to how far you lowered the front?
http://www.ebay.com/itm/Motorcycle-Master-Cylinder-Fluid-Oil-Reservoir-Cup-Front-Brake-Clutch-Tank-/360931722318?pt=Motorcycles_Parts_Accessories&hash=item540935044e&vxp=mtrThe small black container for your front brake fluid