Alpamayo Designs Bikepacking Gear Partial Frame Bag

£50.00 Inc. VAT



Our 1/2 sized frame bags are ideal for road cyclists, mountain bikers riding large frames, or for those who simply want to take advantage of more gear space while still using water bottles. Maybe you’re a commuter looking for a more stream-lined way to carry a change of clothes? 1/2 frame bags could be your friend.


Our 1/2 frame bags are available in 3 different stock sizes. Based on a rigorous analysis of bike frames and geometries, we came up with 3 different geometries that conform well to a wide range of different bikes. All of the bags use cam-lock straps around the seat tube, head tube, and down tube to ensure a sturdy fit on different size bikes.
These 1/2 frame bags are constructed to the same high quality and water-resistant standards as our full-size frame bags, with VX21 & 1000D Cordura sides and a #8 YKK Urethane coated, water repellent zipper.

1/2 Frame Bag Size Details:

Inside top tube lengths:

Size #1: 480mm
Size #2: 495mm
Size #3: 535mm

Size #1 corresponds to a small to medium mountain or road bike, Size #2 to a medium to large mountain bike, or a medium to large road bike. Size #3 will generally only fit well on very large road bikes, but check the length of your bike’s top tube to compare.
For proper fit, choose the size closest to, but not longer than, your bike’s inside top tube length. So say your bike has an inside top tube length of 470mm – you’d want Size #1. Or if your bike’s inside top tube length is 486mm – well, you’d still be best going for a Size #1, and the adjustable straps will take up the slack. But for an inside top tube length of 525mm, you’d be best suited with a Size #2, instead of getting the closer fitting Size #3 that will need to be squished in to fit.


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