I don't understand the discrepancy in the stated weight of the Q2. I had a 180x55 and the manufacturers rep emailed me back that it was 14.8lbs. Now in this article, the Q2 190x50 is 13.02lbs. To add to the confusion, the 180x55 Q2 was the same arc the across the tread dimension as the BTO-16 190x50. doesn't make sense to me..... and this is not consistent among manufacturers.

In simpler terms, Dunlop made their 180x55 Q2 the same size as the other manufactures 190x50s, and there is a huge discrepancy in stated weights, 14.8 vs 13.02. Add 1963 vs 2035mm circumference variation for one size. Smoking mirrors to me.

We need better information from impartial reporters on all tires in terms of dimensions per size and some rationale for the discrepancies.

 

good questions. you should write them. that site is completely web-based and they are pretty responsive to input.