Hi, I am a 50yr old S E QLD, Australia resident. Bike is a Pinegap Afterburner mountainbike, $60 at OP shop, sticker on says hand made Hi strength steel. Zoom front sus forks. 66cc zbox motor that had crankcase leak out of th box. Fitted new crank & countershaft & 2mm wider than stock small end bearings, rocksolid billet head,, billlet intake (thanx headtrauma), vm16 mikuni , sbp deluxe shiftkit & plated x chamber, rocksolid pullstart & reeds fro rocksolid on way. Motor has ports widened a smidge & mild ramping done. Home made cdi & mx coil. Rear cassette is shimano hyperglide 8 speed, 31 or 3t thru to 11. Front & rear 6" cable oporated disks. cheers