Hi Martine,
I started to train with Jennah a few weeks ago. She's almost 12 months old. But I follow the scheme that's on wolfdog (3 months; longest version). But I'm beginning with 1 km every 2 days in the first 3 weeks. Also because it's very hot now (today 30°!). The 4th week (that's now for me), I do what's on the scheme for the second week. Today I did 2,5 km, but in this weather, it's not so nice for the dogs (I went at 19:30, but it was still 24°). In a few weeks, Jennah will get X-rayed, so that I know what I'm doing (with her hips...). I think there will be no problem, so I keep training her (not much like you see!). I start now, because I already want her to get used to the bike. I must say that it was absolutely no problem. She followed very well from the first time. When the weather stays like this, I maybe stop for a while, because Jennah still has her wintercoat. You have to know your own dog a bit, then it will be no problem. But start very easy! One kilometer is nothing, I know, but you have to start like that... I hope this is an answer to your question! Otherwise you can contact me in a private message, so we can speak our own language (that's a bit easier

)
Greetings,
liesbeth