Hiroaki Odajima (Michelin motorsport manager) told jp.motorsport.com about 2019 spec Michelin tire.
https://jp.motorsport.com/supergt/ne...helin/4383448/
*We were quick in the first few rounds of last year, in qualifying time and have high stability.
However, in summer, we struggled with degradation.
*Therefore, in the latter rounds, we changed the direction of development to emphasize durability.
However, as a result, the qualifying speed was lost compared with the rival.
*So, while keeping the stability of the long-run pace, we improved the qualifying speed this season.