Leg cramps when riding

[Dr Jekyll]

After riding for much over an hour I get pains in my legs, sometimes above the knees sometimes below. I regularly shift between having my insteps on the pegs or the balls of my feet and wave my legs around sometimes but this doesn't stave it off. I'm sure it's partly psychological because going onto a different type of road, dual carriageway to country lane or vice versa, helps, and it's always the same in both legs.

I'm on probably the most comfortable bike in the universe, a Deauville, yet I'm limited to about 100 miles in one hit, then I have to get off the bike for 5 minutes.

Any suggestions? I'm mid fifties so I was hoping I'd have another 10 years at least of serious riding.

[Dr Jekyll]

Thanks for all the suggestions. The riding position is about as good as you can get short of a huge adventure bike. Reasonably low footrests, decent knee and hip angles and if anything slightly too upright. One possible issue is that the seat and tank are quite wide so perhaps my knees are splayed out a bit. The trousers don't restrict movement, but good shout on blood flow, they do feel a bit bunched around the hips.

[Dr Jekyll]

Thanks for all the suggestions. I'm not totally sure these are technically cramps but I can't think how else to describe them. At it's worst I feel like I'd expect to feel if I'd ridden for miles using my leg muscles to suspend myself an inch or so above the seat.

I don't generally have leg cramps at other times, just the occasional one in the middle of the night.