depends what bike they put you on. I did my starter learning/test on a little Honda 125 which is by far the worst bike i've ever ridden, generally instructor bikes are badly maintained and they don't really care if you rev the nuts off of it since they get replaced every few years. In terms of ease, I can't drive a car either, learned a bike on a 50cc scooter, rode a 125 scooter for a year then re-did my CBT and got a geared bike. Gears are easy to get to grips with overall and you shouldn't have too much trouble settling in, just be sure not to brake while turning or accelerate into corners and you should be fine