Got a couple of questions about my bike. 1. Suspension - need heavier springs (I'm 6'4" 265). Should I just look at a chart with the weight to determine spring rate? 2. Handle Bars - thinking protaper hi woods. Am looking to get a little more room. 3. Foot Pegs - are any available that might give me a little more room? 4. Tires - I ride in georgia woods/sometimes very muddy. any recommendations. Thanks.