Blackburn Outpost Frame Bag Medium vs Ortlieb Frame-Pack RC
Two frame bags, measured against each other on the figures that decide whether they work on a bike.
The short answer
The Outpost Frame Bag Medium takes price and value per litre; the Frame-Pack RC takes capacity and weight. The biggest single gap is $85 between them. Which of those you care about depends on the frame you are fitting it to.
Assembled from the differences below rather than written over them. Every figure is a published measurement or computed from one — nobody here has used either one.
Where they differ
4 of the 5 things we can measure come out differently.
Capacity
0.5L more in the Frame-Pack RCThe maker's own figure. Worth reading alongside the dimensions below rather than on its own — two bags of the same litreage can want very different frames.
Weight
59g lighter on the Frame-Pack RCEmpty weight as published. Worth holding against capacity rather than alone — the lighter bag is not the better one if it carries a third less.
Price
$85 between themManufacturer's price as we hold it.
Per litre
$18.39 per litre between themPrice divided by the maker's capacity. A crude measure that still catches the case where the dearer bag is also the bigger one, which the price alone hides.
Side by side
Including the rows where they are level.
| Blackburn Outpost Frame Bag Medium | Ortlieb Frame-Pack RC | |
|---|---|---|
| Capacity | 3.5L | 4L |
| Frames it fits | 344 of 344 sizes — 100% | 343 of 344 sizes — 100% |
| Weight | 280g | 221g |
| Price | $80 | $165 |
| Per litre | $22.86 | $41.25 |
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