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Good looking rig brother, I personally found that with the backflip lp and on 4s I was able to comfortably run a 24t pinion (I don’t mind runner my rigs a little on the warmer side; closer to 190ish). Can’t fit anything larger than 24t unless you drill out the motor mount, I say with a 23t you’ll be able to get down and nasty with the best of em without having to worry.Hey guys, I have an et48.3 with an m2c extended wide body truggy chassis and I put a 1520 combo in it based on the good things I saw yall say about it. Just like you guys, I didn’t want to deal with heat issues and plan to run primarily 4s batteries. I currently have a 20t pinion on it and backflip lp tires. I was curious what the biggest size pinion yall would recommend running on it without having to worry about heat. I already have a dual fan heatsink installed as well.