The PPBC Gravel Grinders got out to tackle the SBT Gravelstoke San Diego Black gravel route as a warm-up for the 2021 Rock Cobbler in Bakersfield. With over 80 miles of terrain and 10,000 + feet of climbing (2/3s of which happens in the first 50 miles) this one is definitely a challenge.

You can find all of the SBT San Diego routes by Gravelstoke HERE.