gravelcyclist.com
Thunder Grinder - Thunder Bay, Ontario, Canada (2019-08-10)
From the Promoter: Thunder Grinder you say? What am I signing up for you ask? Gravel what? Grinder who? Do you know how busy I am?! We understand. You have some serious questions and deserve some serious answers. Give us five minutes; we’ll explain……hold my beer. The 2019 Th