Horseshoe shaped lower reinforcemnet bolts to frame....  Then, verical strut is designed to be installed then [tensioned] by tightening bolts -> to create a leaf spring affect and strengthening.  STRONGLY RECOMMENDED FOR ANY MOTORIZED OCC STINGRAY BUILD - to help head off the possibility of frame breakage - due to added weight of motor kit system (and adult rider).  you will need to drill some small holes. 

See photos - these are the perfect sized tank for using on your Motorized OCC schwinn stingray - great look!  approximately 3/4 of a gallon capacity.

TANK ON LEFT AND ON FRAME = is the one for sale in this section.  the small tank is my 2.5 litre [smaller] PURCHASE INCLUDES:  FUEL CAP & PETCOCK (not shown) and mounting hardware.   

MOUNTS OVER AXLE AND BEHIND FRAME.  ALLOWS SOLID MOUNTING OF WHEEL / CHAIN TENSIONING AND WHEEL CENTERING.

note: price is for a pair = 2 tweekers L/R

If you want more pedal clearance for your motorized stingray - these are a perfect fit.  Additionally, they chainring is 44 tooth - same as original so chain length should not be affected when you use these to replace original crankset.

This is the best 415 CHAIN I have found for Motorized Bicycles.  It is a strong 415 chain and compatible with The  10 tooth motor drive gear on ALL Chinese 2 stroke motors.  However it is more flexible and easier to work with than most 415 chains.   [see drop down box]  It takes about 1  1/2 chains for a STINGRAY Project but I do sell them seperately.

CHAIN GUIDE PULLEY - ESPECIALLY FOR STINGRAY - PULLEY ONLY / with mounting hardware

This is my favorite tensioner - slips in between your billet pedalchopper clutch actuator cover and motor [or any clutch actuator cover and motor]  Fast / Easy install - excellent functioning unit. ZOOM IN ON BIKE MOTOR TO SEE UNIT INSTALLED....

This  lever pulls both at same time - that is why I prefer it...  Our other  lever actually favors the upper  cable installation engaging it first.  the  2 into 1 lever allows you to hook up your Front & Rear Brakes to ONE (1) LEVER.  This way you can have a SINGLE BRAKE LEVER to operate both Brakes simultaneously.  It mounts on the RIGHT side which leaves the LEFT side of your handlebar unobstructed for mounting your Clutch Lever. 

ALLOWS - 2 [BRAKE CABLES] INTO 1 RIGHT SIDE LEVER

good solid construction.