Apidura Backcountry Saddle Pack vs Ortlieb Saddle-Bag Two 4.1L
Two seat packs, measured against each other on the figures that decide whether they work on a bike.
The short answer
The Backcountry Saddle Pack takes weight; the Saddle-Bag Two 4.1L takes how far it reaches back, tire clearance, price and value per litre. The biggest single gap is $110 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
5 of the 6 things we can measure come out differently.
Reach behind the saddle
24cm shorter on the Saddle-Bag Two 4.1LLength is the lever arm on the seatpost, and the longer lever is what makes a loaded pack sway. Shorter is easier to live with; longer usually means more volume. It is a trade, not a fault.
Depth
8cm shallower on the Saddle-Bag Two 4.1LDepth is what competes with the rear tire once the pack sags under load. On a small frame or a big tire this is the measurement that decides it.
Weight
55g lighter on the Backcountry Saddle PackEmpty 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
$110 between themManufacturer's price as we hold it.
Per litre
$22.60 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.
| Apidura Backcountry Saddle Pack | Ortlieb Saddle-Bag Two 4.1L | |
|---|---|---|
| Capacity | 4.5L | 4.1L |
| Reach behind the saddle | 48cm | 24cm |
| Depth | 20cm | 12cm |
| Weight | 235g | 290g |
| Price | $195 | $85 |
| Per litre | $43.33 | $20.73 |
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