I ride the beach bike trail every day-Im up to 40 miles on my longer rides.My Ultegra bike only lasted 1,000 miles here because you pick up tons of sand riding here.I built a track bike with the nexus premium 8 and it is getting close to 3000 miles-no maitenace except a bi-weekly hose off and chainlube its great,I love it.Also love my Bianchi Milano w/nexus and my 42 Schwinn replica w/nexus 7.You can buy the nexus premium 8 for 166 from Mr. Bike online.It is not "lighter than any group but dura ace" The hub weighs 3.41 lbs.-its probably heavier than Sora. But I dont think anything else could hold up under the tough conditions I ride.I have changed the tube on my track bike on the road and it took 40 min. but just because it was the first time,and the 175 psi tires took 15 min to pry off-my bike was 24 1/2 as built,stealing light parts from my other bikes brought it down to 24,a cheapo c.f. fork have it down to 23. As good as these hubs are,newer better stuff is on the way-sram has a new 9 speed coming and Shimano a new version of the 8 called ALFINE.I'm hoping to get one later this year and build a LeMond track bike that weighs 20 or 21.