Found lots of comments on re-gearing but just not exactly ….so here goes…. Here in South Africa we are blessed with long hard pack gravel roads, that in an instant turn into sand tracks and dunes; and before you know it into rocky tight paths with steep inclines. SO here is yet another gearing dilemma. My DR-Z 400E has standard 14/47 gearing, and running a 120/90 x 18” tyre – as we regularly do long stretches at 112-115km/h (70miles/hour) the bike sits out at about 7800rpm – to much screaming for my liking. I do like the power and “cool” running of the motor in thick sand and steep inclines, even though it might be in high ambient temps (30-38deg C) - making the standard gearing good in that way. I have no cooling fan (stock), as space is nonexistent behind the radiators to fit one due to Acerbis long range fuel tank. I changed gearing to 14/44 and fitted Maxxis 120/100 x 18” rear tyre. This improves hard pack cruising at 112-115 km/h at a more respectable +/-7200rpm. A short run on a sand track (cool ambient temp) proved rather pleasing. The motor still delivers acceptable performance without excessive labour when you drop speed in the gears, but the power edge is somewhat off compared to the previous gearing. What about overheating in the think technical stuff? Any experience out there to help on this one. Apart from the airbox mod al is stock. Most riding is done at moderate altitudes and in stock I have not had any obvious glitches….