Quote: Originally Posted by preston32 [IMG]/img/forum/go_quote.gif[/IMG]
Goals are to be able to cycle for 2 hours+ on a mainly flat course at a decent pace (20mph+) so I'm not getting overtaken by 70 year old bikers with their shopping!
Where did you get the idea that it takes 20 mph avg for 2 hours to represent a "decent pace"? I'd say a "decent pace" for a strong club rider over two hours of "mainly flat" roads is more like 16-18 mph. If you ride at 16-18 mph, you'll not be overtaken by any 70 yr old that I know....ok, maybe one or two, but they'll be on road or TT bikes, not with shopping bags. The vast majority of recreational riders that I know never approach 20 mph avg speeds, regardless of how long they've been riding.
Reality is that if you can average 15.4 mph now for a 22 mile ride, you ought to be able to get into that 16-18 mph range with just more riding. But I'd advise you forget about setting arbitrary speed goals of any sort. Concentrate on putting in miles of enjoyable rides, fairly low stress, so you can ride 5 or 6 times a week. Increase weekly mileage slowly, focus on enjoying rides and keeping them low-stress for now. Once you've trained up to the point you can put in 100-125 miles per week without suffering, then you might start doing one "speed day" per week, where you do focus on pushing that ride speed a bit, or adding hill or sprint intervals, etc.
Maybe your goal should be annual mileage. If you start putting in 5000 mile years on the bike, you'll find improvement just comes on it's own. After a couple of years of this kind of mileage, if you still feel the need to get faster, you could likely find a group of racers to join for weekly training rides. Either way, enjoy riding the bike.....that's what the sport's all about in the end.