The best glue to use is a quality Super Glue (Cyanoacrylate), Gorilla Glue (Micro Precise) or Resin Epoxy Glue. There is also the slight possibility of fine layer lines showing, but these are hard to see with the naked eye.
72-532 EA-6B Lo-Viz USN VAQ-132 VAQ-135 VAQ-137 1:72 Microscale Decals
Classic Bicycle Model A DIY Kit for Assembling A Miniature Bicycle..New
O Scale Bicycle Buddies (4) Woodland scenics A2752
OO/HO Gauge Bicycle Buddies (4) Woodland scenics A1904
Bicycle Buddies - N Scale (9 pieces) Woodland scenics A2194
1/32 or 1/35 scale: WW2 US Army M305 Westfield Columbia Bicycle (ID: 14.20)