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chain driven weed whacker bike

i am currently trying to complete a weed eater bike build, but have run into some trouble. a jackshaft is required, but i do not have enough money to purchase a kit or use a welder. built one out of some bolts, bearings, and the sprockets needed for reduction, but the engine shakes the chain off the primary drive sprocket or the primary driven sprocket when it is operating. i also need to figure out a way to mount the secondary driven sprocket to the wheel, would JB weld or something similar work? thanks in advance for any help and/or ideas

blkhawk3 years ago
JB Weld does not work well. Stick with welding.