25mile isn’t as far as i can go as im sure i can go much further, i use to cycle alot when i was younger but i suffered a patella tendon rupture and couldn’t cycle anymore, hence the knee issues/concern. My core and triceps are simply sore from not being used to that type of exercise. I wouldn't call myself unfit but i know i no where near some people.[/FONT]
That being said I feel fine today, no aches and pains at all and commuting in today was fine no probs, I posted this thread about half hour after I got back from the 25 mile ride.
Especially considering your knee issues of the past, if I were you, I'd definitely take steps to make absolutely sure the fit of your bicycle is right ... or you could end up with even more problems.
Have a read over these links ...
http://www.cyclemetrics.com/Pages/Fi..._fit_links.htm
http://www.cptips.com/toc.htm#equitip (scroll down to medical issues)
And I'm badly out of shape too, so I suspect my aches and pains are from that ... but I also suspect that my saddle isn't positioned quite right. Tricep pain, for example, is often caused by having too much pressure on the hands or pushing myself back on the saddle.
Here's a link about sore triceps:
http://www.roadbikerider.com/ask2.htm#Why do my triceps get sore?
http://www.roadbikerider.com/432.htm#COACH