The original Firmstrong CA-520 bike
Grubee gearbox
49cc of Chinese goodness!
All the installation parts which came with the engine kit
The original Firmstrong CA-520 bike
Close-up of left side of engine - that rear sprocket is a biggie - top end speed is limited to about 25 mph, but the bike will climb up cliffs -- well
Close-up of my front suspension contraption - modified springer fork to fit my big head tube
Close-up of right side of engine (very tight fit of air cleaner to frame tube)
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The original Firmstrong CA-520 bike

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Sprocket196 Bike Build
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