Most frame bag space

Which frames swallow the biggest full-frame bag?

How this is ranked

Front-triangle area at the largest published size, computed from stack, reach and seat angle.

A full-frame bag is the single most useful piece of carrying capacity on a bikepacking rig — it's low, central, and doesn't affect handling the way a loaded bar roll does. Triangle area is what decides how much of one you can actually run.

Every figure comes from the manufacturer's published geometry — see each bike's page for the source. Nothing here is a judgement about how a bike rides; it's one measurable property, ranked. Disagree with the criterion and the order changes, which is the point.

Surly Disc Trucker 700c — 64cm. Front triangle ≈ 1933 cm² · effective top tube 635mm · seat tube 640mm
Top of this list: the Surly Disc Trucker 700c, drawn to scale from published geometry.

The ranking

  1. 1
    Surly
    Disc Trucker 700c

    largest size, 5 sizes published

    450mm chainstays, 15mm longer than the 435mm median across the 65 current frames here. Bottom bracket drop 80mm, 10mm more than the 70mm median. The fork publishes cargo mounts, and the frame publishes bottle or accessory mounts. A rear rack bolts straight on. Widest published tire 47mm on 700c / 29in. Surly publishes no dropper routing for this frame.

    1933 cm²
    from $1,799.99
  2. 2
    Surly
    Preamble

    largest size, 5 sizes published

    420-435mm chainstays, 7.5mm shorter than the 435mm median across the 65 current frames here. Bottom bracket drop 54-66mm, 10mm less than the 70mm median. The fork publishes cargo mounts, and the frame publishes bottle or accessory mounts. A rear rack bolts straight on. Widest published tire 41mm, the same on 700c / 29in and 650b / 27.5in. Surly publishes no dropper routing for this frame.

    1932 cm²
    from $399
  3. 3
    Surly
    Midnight Special

    largest size, 8 sizes published

    425mm chainstays, 10mm shorter than the 435mm median across the 65 current frames here. Bottom bracket drop 65-70mm, close to the 70mm median. The fork publishes cargo mounts, and the frame publishes bottle or accessory mounts. Surly publishes no rear rack answer, which is not the same as no — but it is not something to buy a rack on. Widest published tire 60mm on 650b / 27.5in, 42mm on 700c / 29in. Surly publishes no dropper routing for this frame.

    1908 cm²
    from $2,349
  4. 4
    Kona
    Dew DL

    largest size, 4 sizes published

    1894 cm²
    from $899
  5. 5
    Canyon
    Grail CFR Di2

    largest size, 7 sizes published

    1864 cm²
  6. 6
    Trek
    Marlin 7

    largest size, 7 sizes published

    1848 cm²
    from $1,399.99
  7. 7
    Surly
    Straggler 700c

    largest size, 5 sizes published

    1843 cm²
    from $1,699
  8. 8
    Canyon
    Grizl 6

    largest size, 8 sizes published

    1839 cm²
    from $1,999

Other ways to rank these bikes

Best bag space on a small frame

If you ride a small frame, which bikes don't punish you on carrying capacity?

Most tire clearance

Which frames take the biggest rubber?

Most stable under load

Which frames put the most bike behind the bottom bracket?

Bikepacking bikes with fork cargo mounts

Which frames let you bolt cages to the fork?

Best set up for cargo out of the box

Which frames let you bolt things on without straps and improvisation?

Cheapest frames that publish the full mount set

Which bikes come ready to carry luggage without buying an adapter or improvising a strap?

Takes a dropper post and a rear rack

Can I run a dropper and still carry a real load behind the saddle?