hi folks, after a bit of advice if possible. i quite like the above bike from ebc for some light touring but also for general pottering about, but it comes with sora gears, which my current bike has and which i find horrible to use. would it be possible to buy some tiagra levers and put them straight on instead? would it even be worth the effort, i dont know. why do they even use sora, its seems really uncomfortable to me and hard to reach the lever. anyway, cheers in advance, steve in evesham.