Bike Bags Chrome or Timbuk2

a bag with a poor strap like the Timbuk2 will give you pain on your shoulders, having a strap that support the bag properly on your shoulder is better than having a bag that can be use for both shoulders.

+1. The Timbuk2 is a jack of all trades and a master of none. Chrome, on the other hand, is a master at going over one shoulder. There's no contest. Read my thread about Timbuk2 Sway.