Hi, I weigh about 250lbs and need to do some daily excercise. I have a stock standard 2016 GT aggresor comp as on https://www.evanscycles.com/gt-27-5-aggressor-comp-2016-mountain-bike-EV240513
The bike has 27.5 inch wheels.
I would like to use it on road, cycle track on sidewalks and maybe a...