Full Commitment Bike Routes of San Diego 

 Starting at Carlsbad - Alga and Melrose 

 Route 45 La Costa to Harmony Grove. 29 miles.
 Route 46 La Costa to Tamarack. 22 miles.
 Route 47 La Costa to Palomar Mtn. 81 miles.
 Route 92 Ramona. 70 miles.