Zenoptic New Member Nov 18, 2009 94 0 0 Knoxville,tn Feb 24, 2010 #1 Will the china engine (PK80) fit in the 1070S Schwinn Stingray 20 inch frame??
Bikeguy Joe Godfather of Motorized Bicycles Jan 8, 2008 11,837 252 63 up north now Feb 24, 2010 #2 I have seen it done, but it's tight and needs a 27T sprocket.
N noco New Member Sep 9, 2009 343 0 0 fort collins colorado May 14, 2010 #4 check the pics sections youll find allot of ideas