The name Trail is only to define the type of bike they fit, all the tread patterns are the same, I had these fitted to both WC bikes and felt that they are great confidence inspiring in the rain, where my mates would slow down I was able to keep going at the same pace, but compared to the nexts i had fitted, I felt the bike steered quicker with nxt's but this could have been down to one of the bikes having a steering damper.
