I admire NLbike's rat rod. It has a pocket bike engine mounted mid-frame. Power is chain-driven through the bike's bottom bracket (BB) on the left-side. The chain ring sprocket on the right side of the BB connects power to the rear sprocket. Here I go again. I have a bare Diamondback cruiser-type frame that had never been built. I gain inspiration from NLbike's creation. However, his bike has no pedals; I need pedals. I can envision a flat plate or generic 4-stroke motor mount on my bike frame. It's bolted or welded to the frame tubes and a Tanaka 3hp 47R or 4.5hp GP460 engine. The engine will have a 6-tooth bell housing sprocket on its left-side. There is no 5:1 gearbox, which would make the engine wider. The 6-tooth drives a T8F pocket bike chain to a 36-tooth sprocket, which is bolted onto an extended BB axle, inboard of the left foot pedal crank arm. This is the extended axle for the BB: http://custommotoredbicycles.com/wi...r_clearing_4_stroke_motors68mm_bottom_bracket The 36t sprocket will have no freewheel; the 6t on the bell housing freewheels at idle speed. On the right side of the BB, a 22-tooth BMX sprocket bolts onto the BB axle, inboard of the right foot pedal crank arm. The chain runs back to an 8-speed internal hub with a 25t sprocket, which is dished to clear the 1/2" x 1/8" chain. With the correct sprocket combination, 8th gear(1st gear) is a stump-pulling 48.75:1. Final drive is 13.64:1. How do I stop the pedals from spinning? Methinks it's a simple solution, but I just can't figure it out right now. Thanks for help.