Best AC100 Shoes for the San Gabriel Mountains

Quick picks (if you just want an answer)

What AC100 + the San Gabriels demand from a shoe

• Downhill control: long rocky descents punish sloppy fit and weak underfoot protection.
• Heat management: feet swell; snug “perfect fit” at mile 5 can become a problem at mile 65.
• Traction in dust + decomposed granite: you want confidence on loose corners and steep pitches.
• All-day comfort: blister prevention and predictable ride beats “fast but fragile.”

Top pick: HOKA Speedgoat 6

The Speedgoat line is popular for a reason: it handles long miles well, feels protective on rough trail, and stays predictable when you’re tired. For many runners it’s the safest “first shoe to try” for AC100.

Who it’s best for

• First-time 100-miler runners who want a reliable, forgiving shoe
• Runners who care more about finishing strong than feeling “racy” early
• People who want one shoe that works for most long runs + race day

Who it’s NOT for

• If you need a very wide toe box (you may want the wide version or a different model)
• If you prefer a firmer, lower-stack, more “ground feel” ride
• If you routinely roll ankles and want maximum structure (consider a more stable platform)

Check Speedgoat 6 price

Fit + sizing notes (practical)

• If you’re between sizes, consider the option that gives you toe room—especially for heat and swelling.
• Lock your heel first. Most “blisters” are really heel slip + hot spots.
• Test on a downhill: if your toes tap the front on descents, adjust fit/lacing now, not on race day.

Alternatives (based on what you need)

If you want more cushion late-race

Try a plusher long-distance model (example: Mafate Speed). This is for runners who feel beat up on descents and want a softer landing.

Check cushioned option

If you want more stability / structure

A more structured platform (example: Cascadia) can feel calmer on uneven trail when your form breaks down.

Check stability option

If swelling + toe room is your limiter

If your toes get crushed late, prioritize toe box space and dialing socks/lacing. A wide-toe option (example: Olympus or wide versions) may solve more than changing “models.”

Check wide-toe option

Blister prevention that matters more than brand

• Socks: pick one pair type and train in it repeatedly. Consistency beats novelty.
• Heel lock lacing: use it if you get heel slip or downhill toe bang.
• Keep grit out: gaiters help on dusty sections if you’re prone to sand-in-shoe hotspots.
• Hot spot rule: if you feel a hot spot, stop and fix it early. Waiting turns friction into damage.

FAQ

How many miles should I put on race shoes before AC100?

Enough to confirm fit, lock down hotspots, and prove they behave on long downhills. Avoid “brand new on race day.”

Should I rotate shoes during training?

Yes if you can. Rotating can reduce repetitive stress and gives you a backup option if something stops working.

Do I need a different shoe for heat?

Heat mostly changes fit needs (swelling). Prioritize toe room, lacing, and socks before chasing a different model.

Can I run AC100 in road shoes?

Not recommended. You’ll want trail traction and protection for loose and rocky sections.