This guy gets the job done...with some practice. After watching videos on how to use this item i learned 2 things that helped it work. Rotate crankshaft slowly and have a bike stand to keep bike level with ground. Knowing those 2 things made use of this very easy. The supplied cleaner will last at least 3 uses. Recommend buying the larger bottle with spray nozzle for the rear gears. Doesn't feel like the most well built item (thin plastic), so be attentive.
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