Course

For the 2019 inaugural Graft-TON Grind we have tried to showcase as much of our single track at Bom Bom SF as possible, but extend the distance out 33km so we can get that magic number of 100km - the TON.

For no reason at all, the number '3' is very prominent in this event. Firstly we have a 33km lap, to get 100km you will need to complete 3 laps( plus the start line roll in). We have also designed the course so that there is 3 distinct sections. This means competitors will ride through the event HQ, past spectators, friends and family 3 times every lap. The longest section is just over 15km, and there will be a Technical Feed Zone (TFZ) accessible at the start and the end of this segment, where riders can hydrate, refuel or make any bike repairs. I'd like to say it culminates with 333m of climbing, but its actually closer to 360m per lap.

Below is a map of the full course. And scroll further down to the Trail forks links to each section so that you can check it all out.