MC Tested: KiWAV Motorcycle Stem-Nut Spanner Wrench Steering-stem nuts? Shock-preload collars? They’re no match for KiWav’s adjustable spanner. What tool do you use? Put down that screwdriver and hammer. There’s a right tool for every task, and for slotted collars it’s KiWAV’s adjustable spanner. MC Tested: KiWAV Motorcycle Stem-Nut Spanner Wrench (image) Steering-stem nuts? Shock-preload…