@MickeyBlueEyes
@Crankarm
Thanks for your input.
To try to answer your questions: I'm 10stone wet through, a whisker over 5'8", 36yrs old. Shamefully my route is flat all the way, but in my defence because of the flatness it's very windy round these parts at this time of the year so I am almost
always riding into a strong head-wind or at least stiff breeze. Also, for now I'm grinding along on a 10 year old Land Rover Mountain bike with 55mm tyres. It must weigh 16kg+ at least, and was only £200 when new and is now worth pence at best. It badly needs a new chain and new front derailleur.
I get up at 7am, do a 45min workout (press-ups/jack-knives, planks etc), usually have a bowl of muesli with semi-skimmed and fruit juice or 2 slices of marmite on toast and milk for brekkie, walk my daughter the half-mile or so to school then hop on for my 8.5 mile commute. When at work I spend roughly 2.5 days a week behind a desk all day, 1 day cycling short distances to do home visits and another day and a half doing heavy digging, barrowing and lifting all day. I usually eat leftover pasta or 2 sandwiches (4 slices of bread) plus fruit for lunch. I don't snack at all usually. I set off home at 6pm and seem to flag towards the end regardless of what I've spent my working day doing.
By flat out I mean going as fast as I possibly can (traffic lights and junctions not withstanding) all the way. Which on my crud bike into the wind is prob still only about 13mph average over 8.5 miles.
Hope his helps?! Cheers.