Put your left leg on the foot peg grab the right hand brake lever and squeeze the front brake as you swing your leg over, this locks the front wheel and the bike is going nowhere, Simples

if you have really piled the seat high swing your leg up verticaly and as it comes down let your heel land on the seat then shuffel over the seat, This is a good technique for off road where the ground is too soft to support the bike on the side stand in this case you have too hold the bike vertical with your left hand its a bit precarious at first but you get better with practice,

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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights