by rocketman » Mon Oct 15, 2007 12:27 pm
XR70/CRF70 is a great step up! My daughter went from the xr50 to the xr70 and is has been great. Auto clutch Yes, mod's I believe the pipes for the 50's and 70's are the same,open the air box and jet up if you want to modify. Also a sprockeet change will help the low end. Bulletproof Yes!! Good luck.