So bought my 426 without a manual(I need to order one) and no idea what size sprocket I need for it. My buddy who retired from Mx racing 15 years ago came over and looked at my 426 last night noticed I am running a 35-38 tooth rear sprocket(tiny he says) and saying I need a larger one to navigate the trails easier. So here is my question: 1. What size is stock for front and rear Sprockets? 2. What would be a great recommendation for trails(woods)?