I recently got a great deal on this model bike. However I am 5 foot 7 with a 30 inch inseam. My first question is does this bike have two seat Heights or is it fixed at the 33.9. I know the standard model can be adjusted to three different heights. But I was wondering if this one was adjustable and how do I know if it´s at its highest setting. feels really tall. I plan on having the seat lowered by shaving as much as possible and buying the lowering kit. I will be doing only trail riding, access roads and pretty tame off-road at best. Any suggestions or ideas as to get the height lower down. If anybody has done these adjustments could they let me know how they feel about the lowering kit. Thank you and safe riding.