BMXmuseum.com Bikes / Nirve / 2003 Nirve Lift

Back into BMX after 20 year break -- love it.  Hi, I picked this up at an estate sale. I am pretty much old-school and never heard of Nirve. I found out that when GT sold some employees formed this company. They made some good bikes and now only seem to make cruisers. I liked the frame and it's color and also the 3 piece cranks. I believe the entire bike is stock except the back pegs. It is a heavy bike and some sites call it a "muscle bike" which I have no idea what is meant by that. I noticed very few in the Museum and Did not find a 2003 Lift -- I think this will be the first one in the Museum ("Lift") -- now that could be bad or good -- I'm leaning toward the bad side. Anybody with any info.on the bike would be much appreciated. It has 2 sets of digits on the bottom -- one reads UK - JMP - 2 and the other S3IT06941.   I am excepting offers if anybody is interested in any of the bikes --  I need the money to buy more -- it's addicting.  Any info. on any of my bikes would be much appreciated.