Bontrager Adventure Boss Frame Bag Size:3.8L extends their life up to

extends their life up to four times that of a derailleur/chain drive

Based on the same platform as the tried and tested OSX but with more rise

Just the right size for little hands

Perfect View Zoom Buttons - Easy to access buttons on the side of the unit allow you to zoom in and out of data fields with just a touch

Bontrager Adventure Boss Frame Bag Size:3.8L extends their life up toBontrager Adventure Boss Frame Bag Adventure awaits with this durable frame bag featuring multiple pockets for all of your gear. The Adventure Boss Frame Bag is available in six sizes to ensure the best fit for your bike, and it mounts quickly and easily with a simple strap design. You can also pair it with the all new Checkpoint for integrated, strapless top tube mounting using thumb screws (sold separately). Product details Available in six sizes to