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RC-Monster Mike · 01.01.2006, 03:33 PM

The UM gears are nice, but HEAVY as Papa mentioned. A single speed tranny with a steel idler gear will handle almost anything you can throw at it with less weight and a lot less rotating mass than the UM gear set. I have run up to 6s Lipo(lot of power!) with the single speed and stock lower gear and haven't had a hint of trouble. IMO, they are not necessary at all.

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RC-Monster Mike Site Owner Offline Posts: 4,915 Join Date: Nov 2004 Location: PA	01.01.2006, 03:33 PM The UM gears are nice, but HEAVY as Papa mentioned. A single speed tranny with a steel idler gear will handle almost anything you can throw at it with less weight and a lot less rotating mass than the UM gear set. I have run up to 6s Lipo(lot of power!) with the single speed and stock lower gear and haven't had a hint of trouble. IMO, they are not necessary at all.