Over the last few years I have used a treadmill usually on occasions when it's very difficult to run outside e.g. winter!
I have been using a Tunturi J440 which ovrall has been quite good but probably now needs replacing.
Can anyone recommend a suitable replacement, I'm not looking for anything fancy and speed is more important than other functions(the Tunturi goes up to 16kmh but I really want one that goes up to 18-20 kmh for interval work.
