Hi all, am posting on behalf of a friend. He saw a DR125 on sale from a bike shop recently, 4 stroke bike. Went through sites and forums but can't seem to find anything much about it. Would appreciate if anyone who know this bike can share some info.

Questions:
1. can be use for offroad?
2. power wise?
3. any mods can be done to improve power?
4. any areas/problems to look at before purchasing?
5. is it a problematic bike?


Thanks in advance!