Castle Rock, Colorado

Post Millennium Renaissance

MTB tools built on real physics.
Trail advocacy grounded in economic data.
For riders who want to understand
the machine beneath them —
and the land beneath the machine.

View the tools

Three instruments, running live.

Fig. 1 · Wheel mechanics

148 vs. 157 — symmetry equals strength.

Drive-side bracing 4.04deg
Lateral strength 100
Spacing 148mm

Drag the wheel sideways to spread the hub · scroll to orbit it

Interactive MTB wheel strength comparison
Fig. 2 · Data visualization

Which sports are actually growing?

Participants in millions, 1980–2024. Scroll the plate, or drag the scrubber, and the lines draw forward through time.

Mountain bike Pickleball Racquetball
Open the full series

Built to understand MTB, not just ride it.

Fig. 3 · IP research

You’ve heard “Horst Link.” Here’s the actual paper.

Eighteen real filings from the Atlas, 1913 to 2024. Fly through the stack, then type to filter it in place — forty years of prior art thins to three sheets as you narrow.

18 of 18 sheets · drag the right-hand slider to fly through · click a sheet to read it

Click any sheet to read its filing.

Search the full atlas

Rider, advocate, builder.

Post Millennium Renaissance MTB is the work of Jon — a trail advocate, content creator, and tool builder based in Castle Rock, Colorado. The tools here are built without a formal coding background, out of a conviction that mountain bike mechanics and trail economics deserve the same rigor we bring to the trail itself.

"There are no solutions. There are only trade-offs."

— Thomas Sowell

Castle Rock's trails deserve serious investment.

Philip S. Miller Park

Economic impact research and civic presentation materials supporting trail expansion at Castle Rock's flagship mountain bike destination — delivered to Town Council with defensible ROI framing.

~2MAnnual visitors
3–5yrEst. ROI payback

Ridgeline Open Space

Trail advocacy resources and community engagement materials for Castle Rock's Ridgeline Open Space, grounded in 13 U.S. trail investment studies and built to hold up in front of municipal stakeholders.

13Studies synthesized
80109Castle Rock, CO