need help with rm125

[rm125beast77]

My suzuki 125 has all kinds of after market parts and and barely feels faster than my cr80 all my cr80 had was a shorty pipe.My 125 has full pro circuit exhaust system,uni pod filter,brand new piston,good compression on the kick start, and boyesen reeds.any suggestions of why this is like this?

[oldschoolzuk]

My nephew has an 01 and that thing just plain out flys.We did however tune it last season and regeared it .If your bike seems slow it could just be a matter of gearing.What is your current set up now..You can always add a tooth or 2 to the front sprocket and that will increase top end speed .Or it could be way out of tune.Need more info year and mods done to it???