Ride type Gravel ride Gravel category Category 3 Infrequently maintained trails and roads requiring a higher skill level. Use 30-40 psi tire pressure, depending on your weight and the minimum sidewall rating. Ideal bike: Gravel bike Tire size: 33-40mm See Types of Gravel Rides Leader(s) Mickey Burzynski Amy Ellis Cancel Date Saturday, October 12, 2024 at 10am Starting location MassDOT Parking Area 12 Park St Topsfield MA 01983 Google map Google map Routes Please download this latest version of the routes before each ride. Route Miles Elev.* Print Files Mickey's mixed terrain adventure 20 623 Cue sheet Send to device Route maps 20 miles