Blackburn Outpost Frame Bag Medium vs Topeak MidLoader 6L

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 weight and price; the MidLoader 6L takes capacity and value per litre. 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 4 things we can measure come out differently.

Capacity

2.5L more in the MidLoader 6L
Blackburn Outpost Frame Bag Medium
3.5L
Topeak MidLoader 6L
6L

The 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

57g lighter on the Outpost Frame Bag Medium
Blackburn Outpost Frame Bag Medium
280g
Topeak MidLoader 6L
337g

Empty 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

$13 between them
Blackburn Outpost Frame Bag Medium
$80
Topeak MidLoader 6L
$93

Manufacturer's price as we hold it.

Per litre

$7.36 per litre between them
Blackburn Outpost Frame Bag Medium
$22.86
Topeak MidLoader 6L
$15.50

Price 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 MediumTopeak MidLoader 6L
Capacity3.5L6L
Weight280g337g
Price$80$93
Per litre$22.86$15.50
Blackburn
Outpost Frame Bag Medium
$80 · 280g
Topeak
MidLoader 6L
$93 · 337g

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