Anybody own a Shimano Nexus-8 hub and heard of the following problem? I have been using one for the last 6 months, apart from the weight issue on the back I have been thoroughly pleased with it. I went on a four day tour through Wales over the weekend, carrying about 15kgs on the back and my body weight. Well it now seems that the rear wheel won't freewheel, it will at a low velocity but as soon as there is an increase the pedals will start to move. When riding the bike, I can stop pedalling and keep my feet on the pedals the hub sounds fine, the wheel is freewheeling still. If I lift my feet off the pedals, the pedals begin to move again. When I am off the bike, rolling the bike forwards/backwards causes the pedals to move. Something just doesn't seem right. Thanks.