When i first did my commute on my mountain bike my ass was on fire i got scalped by a oap,things were not good within 2 months i changed to a flat bar road bike rode with friends family and local cycle group and was doing 30+ miles regularly,riding 60 miles within another 2 months and 100 miles within 6 months ,if you believe in your self you can do it ride regularly and do your best,i now ride a full carbon and can eat the miles,and you will be doing your first 30 quicker than you think,best of luck
I had started to do 6.5 miles to work a couple days a week. But I have changed jobs, and towns, and now my commute is nearer 13 miles. SO I don't have the confidence that I can do that and be in a suitable state to do some work, or that I can do it in a timely fashion. But I am working on it, and intend to commute by bike at least two days a week regularly.
I used to have an old heavt raleigh MTB, but have just changed to the Specialized Sirrus Elite (pictured as my avatar), I am amazed at the difference, now I find cycling fun, rather than a mean of exercise. So I am looking to do more, and better, faster, stronger.
My first goal is LBS easy ride on saturday mornings, they said I need to be able to go 12mph comfortably, and I am not there yet. I am at 10.5, so need more strength in my legs at the mo.
But I will get there!! Oh yes I will ;o)