stewmills wrote on 10/21/16 at 13:46:10:

If you stop using the cheap hellium you'll get a 20% increase, but your tires will go flat in a month.
cheap hellium is 50% air and hellium is capable of migrating its way thru the rubber because it's a very small molecule.

I use nitrous oxide in my tires
If I need a good laugh I just stop and take a hit off my front tire and be on my way !

he Shinko 230 is getting a lot of good press on this forum.  It is very affordable, it is round and black, and badwolf can get 18,500 miles out of one.  I put a 130/90-15 size on the rescue bike, and the size is almost identical to the IRC 140/80-15.  In the 140/90-15 size it is much bigger, and it helps to lower the engine rpm at speed - but it is larger and heavier and does slow the acceleration and handling down a bit.

I'm not going for AA Fueler acceleration and im not TOO concerned with razor handling.. I Do sometimes need to flick a foot to go around a pothole at forty.. would I be at a disadvantage with the bigger tire? I DO, definitely, ohhh most certainly, want it turning slower on the road. I'm planning a Spring camping trip that hops from lake to lake heade South till we just pack up and get on to Galveston. Reelthing is gonna ride the Guzzi up, we will meet, fish, drink Adult Beverages, fish, rinse, repeat, and Try to not demonstrate that we Are in fact Rednecks by discovering that we have indeed gotten too drunk to fish.

Ya know, doesn't matter, I'm gonna go with the 140, I had some of that size on the other bike and it handled fine for my riding.
Price IS good,,and I see
Buy the Pair, front and back,
But that is More than buying them separately,,,
WTH?