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I'm in the market for an aftermarket tuning device and software. I almost ordered the Tuneboy back in the day and ended up putting the bike build on hold for a couple years. Now that my bikes back together, I'd like to get some input on what people have been using? Ideally something I can...

So I returned the $125 DP 41T rear to try and save a few bucks from chain replacement being needed and change the front instead. So if memory serves oem is 15T and a lot of guys goes to 14T right? Same as increasing rear from 39T to 41T correct? Any brands more popular than others? Steel...