is this a good bike

I haven't seen the bike in question so this is not something that I can realistically answer. One thing I do know for sure is that those stock front forks and rear shock have to go if you would like to even get a little serious on it. I have a TTR125L myself that my husband has added a ton of upgrades to, and even though it is the most under powered bike I have ever owned, it still amazes me the stuff it can do and the hills it can climb. Thankfully he still lets me ride my old KTM400 when I really feel the need for speed, but it is not as easy to throw around as the TTR. You can e-mail me at Race2Dez@hotmail.com and send me your e-mail address if you would like me to send you a list of all my TTR hop-ups if you are interested in making an already great bike even greater. I hope I have not discouraged you in any way because they are great and dependable little bikes with tons of potential.