Review on UPANBIKE Mountain Bicycle Adapter 25 4Mm150Mm by Brad Schaefer

Looks decent overall but I have two issues with this adapter: The first issue was my own fault for not understanding that 148mm equals 6 inches so it was shorter than I expected would have. not my fault and this may be why a lot of people have trouble installing a stem on their bikes: the spline at the bottom is drilled and tapped/threaded very LOOKING, which puts the spline at an angle. It's so far away that you can see it in the picture! Not only does this make assembly on the bike more difficult, it is also extremely dangerous! If you do not tighten this part properly, it may come loose while driving and cause an accident.