Anyone interested in offering some free expertise? I commutie two days a week. I’m on a flat-bar hybrid Carrera Subway 2 bike from Halford. About 30 lbs. I’d like to work my way up to better fitness. My commute is 10.5 miles each way, adds up to 42 miles a week on two days, depending on the weather and my motivation level. I’m using a backpack to carry my laptop and some bits and pieces. After two days (42 Miles) my thighs are hurting, so would like to increase my distance with less effort. Altimately looking at increading my weekly ride two 63 miles ie three days or more. I’m looking at stuff with a ceiling of £750. Thoughts?