Yeah but 50 kms is like 6 times that or am I missing something ? I mean in the next part the speed is 1 . 83 kms and that seems to be more in line with the Altitude and Distance numbers ticking . <| sep |> Mountain bike conversion slicks , so they are pretty wide . Thanks for the advice , Think I ' ll go next weekend i ' m free . Luckily the temperature has barely got past freezing this last few weeks in scotland , so the ground should be solid and I won ' t need to worry about mud . Can ' t wait to get my forks replaced and my mountain bike tyres back . I miss flying through the air . I did take it up a bit back , but I had a slow puncture , 1 gear , no lights at nearing dusk , slippy pedals , and my forks were rock solid that day . It was pretty interesting , but I only had about half an hour there as it was further away than I thought and all uphill , and my lights weren ' t good enough to stay until it got even slightly dark