Thayer Extreme MX — Layout & Terrain

Main Loop

1.00 mi

Track Profile

Layout

One-mile loop with great faced jumps, tabletops, and a fun whoops section. Both small bike and big bike friendly, with a peewee track just off the main course for smaller bikes (PW50s). Also features flowy woods sections.

Compiled from the track’s website (thayerextrememx.weebly.com). Always confirm current days & fees with the track.

Rides like

Grippy loam — takes ruts, holds a line, and rewards smooth riding; drains well, usually prime 1–2 days after rain. Prime window: May, Sep, Oct.

Track Details

Elevationtrue

Jump typesFaced jumps, tabletops

WhoopsYes

Gate positions40

Pee-wee trackYes

Woods loopYes

Spectator viewSpectator bridge overlooking jumps

Track DNA — what the dirt is really like

Intermediate

Hard-packLoamSand

▸Loam — the good stuff. Takes ruts, holds a line, and rewards smooth riding. This is the surface most tires and stock suspension are happiest on.
▸Drains well — typically prime 1–2 days after a soak, when it’s tacky instead of slick.
▸High silt (65%) — this dirt turns to DUST when dry. Expect water trucks, hazy late motos, and pack extra air-filter prep.
▸Genuine elevation (~38 m of relief) — real uphills and downhill braking zones, not just man-made jumps. Brakes and fitness matter here.
▸Wettest months: Mar, Apr, May — highest mud/cancellation risk. Prime window: May, Sep, Oct.

Sand

22%

Silt

65%

Clay

13%

Series: GressyDrainage: Well drainedRelief: hilly · ~38 m

What do these terms mean? ▾

Sand / Silt / Clay %:: What the topsoil is made of. More sand = looser and faster-draining. More clay = harder, slicker when wet. Silt is the fine dust-maker in between.
Loam:: A balanced sand/silt/clay mix — the tacky, rut-forming dirt riders love.
Blue-groove:: When dry hard-pack gets polished by tires into a shiny dark racing line — grippy for some tires, ice for others.
Drainage class:: USDA’s rating of how fast this ground sheds water — it predicts how soon after rain the track is rideable.
Soil series:: The official USDA name for this exact soil type (like a breed name for dirt).
Relief:: How much the ground rises and falls within the track’s ~1 km square — flat, rolling, or genuinely hilly.

Tires that work on this dirt

Dunlop · Front & Rear

Geomax MX33

The most popular soft-to-intermediate tire — safe all-around pick.

Pirelli · Rear

Scorpion MX32 Mid-Soft

Versatile mid-soft compound for loamy, mixed dirt.

Maxxis · Rear

Maxxcross MX-ST

Value intermediate-terrain rear that wears well.

Picked for this track's intermediate surface.

Topsoil (0–15 cm) composition from USDA SSURGO soil survey. A guide to typical conditions — actual surface varies with prep, weather, and watering.

Riding Season

Mar – Nov

Best (warm + dry) Wettest (mud risk) Bar = monthly rain

Best months: May, Sep, OctDriest: Sep, NovMud risk: Mar, Apr, MayPeak heat: JulAnnual rain: 48.1"

Practical riding season Mar – Nov; best in May, Sep, Oct (warm + dry); wettest / mud risk Mar, Apr, May; peak heat Jul (~90°F).

Best months to ride in Missouri→

Based on 2019-2024climate normals (Open-Meteo / ERA5) at this location — a planning guide; check the track's Facebook for current conditions before you haul.