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Will it fit your bike?
We checked this bag against 347 current bike sizes with published geometry. It fits 347 of them — 100%.
Judged on Blackburn's stated minimum seat tube and top tube, plus front-triangle area so that sloping frames aren't wrongly excluded. It's an estimate from published numbers, not a guarantee — measure before you commit.
Check against your frameBlackburn Outpost Frame Bag Medium — Specs & Analysis
Manufacturer specifications, compared against every other frame bags in our database. We do not test gear in the field — we measure, verify, and compare.
Blackburn's Outpost frame bag is a reliable entry-level option with water-resistant fabric and a full-length zipper for easy access. The padded back panel protects your frame from scuffs, and the internal mesh pocket keeps small items from disappearing into the main compartment.
Who Is the Blackburn Outpost Frame Bag Medium Best For?
Budget-minded riders who want solid frame storage without breaking the bank. If that describes your riding style, the Outpost Frame Bag Medium should be at the top of your shortlist. It sits in the Frame Bags category alongside 16 other products we track.
How It Compares
At 280g and $80, the Outpost Frame Bag Medium is 180g heavier than the lightest option in this category (the Apidura Backcountry Frame Pack 1L at 100g). The most budget-friendly option is the Moosetreks Full Frame Bag at $60.
The price-to-weight ratio comes in at $29 per 100g — a reasonable middle ground between performance and value.
What We Like
- +Great value for the price
- +Full-length zipper for easy packing
- +Padded back panel protects frame finish
- +Internal mesh pocket for organization
Watch Out For
- −Water-resistant only, not fully waterproof
- −Straps can slip on rough terrain without retightening
- −Medium size leaves gaps in larger frames
The Bottom Line
We haven't scored the Blackburn Outpost Frame Bag Medium, and neither has anyone else we can cite. It's here for its verified specifications and dimensions, which is what the fit tools run on — a score is an editorial judgement, and we don't hand one out until someone has a basis for it. What this page can tell you is measured: 280g, $80, and how both sit against every other frame bags product we track.
The price and weight above have not yet been checked against the manufacturer's own page. We are working through the catalogue and saying so as we go, rather than letting silence imply otherwise.
Specifications and dimensions come from the sources listed above. Where a page draws on first-hand riding, it says so.
How the Outpost Frame Bag Medium compares
Against the bags people cross-shop it with, measured rather than reviewed — including how many real frames each one fits.
How it compares
Against the 17 frame bags we hold published specs for.
At 280g the Outpost Frame Bag Medium is lighter than 4 of 16 alternatives we track. The category median is 198g.
At $80 it undercuts 12 of 16 of them, against a median of $151. That works out at $29 per 100g — below the $69 median for frame bags.
Weight and price come from published specifications. Cost per 100g is a blunt measure — it rewards light gear and says nothing about durability or whether the thing works — so treat it as one input, not a verdict.
More in Frame Bags
Frame bags sit inside your bike's main triangle, keeping weight centered and low for stable handling.