No gas gauge, but it does have a generous reserve. If it still has the original control valve, you turn it counter clockwise for the main tank. This is different from most bikes. If you look close, one side of the control is thicker, this points down for normal, up for reserve and forward for off.
I usually start looking for a gas station after about 100 miles. Even with a lot of traffic riding and a long way between stations, I seldom have to switch to reserve. While traveling, I fill up every restroom/water stop. The tank is good for about 2 1/2 - 3 hours and my bladder comfort zone is about 2, so that works out just right.
If you decide to start riding yourself, take the local rider safety course and then just ride. The Triumph twin is the ONLY bike larger than 400CC that I feel is well behaved enough for a first time rider.
There is one really big problem with the Triumph Twin. You are going to spend a lot of time listening to, "Hey isn't that a Triumph? (I, my dad, uncle, etc) had one just like that back in '68...." Oh, and every time you go someplace where other riders hang out, you will have to fight your way through the crowds of admirers to get to your Triumph.
