San Francisco Bay Area
Carbon Fiber Bicycle Inspection
Independent, structured inspection reports for used carbon bikes. Online, photo-based, turnaround in 2 business days.
Carbon damage is often invisible — and often structural.
Used carbon bikes trade at a significant discount to their retail value because there is no easy way to verify structural integrity. A crash or impact can leave a frame looking intact while compromising its laminate. Buyers avoid the category; sellers leave money on the table.
Most inspection specialists are out of state and ship-in only. Presidio Composites is an independent, Bay Area-based service producing standardized inspection reports — the same documented opinion a home inspector provides before a purchase.
How it works
01
Order online
A short form captures your bike details and contact information.
02
Upload photos
Follow our photo checklist — full profiles, head tube, bottom bracket, any specific concerns.
03
We review
Inspection complete within 2 business days. Every report is reviewed by a trained inspector.
04
Report delivered
A private link is emailed to you. Optionally make it public and share in your marketplace listing.
What's in the report
Every report follows the same structured format. The output is a branded, shareable web page — private by default, with the option to publish it publicly.
- Overall condition summary
- Frame, fork, handlebar, and seatpost evaluation
- Visible damage documentation with photo references
- Areas of structural concern
- Inspector's recommendation
Pricing
Online Inspection
$99
Flat rate. No custom quotes.
- — Structured inspection report
- — 2 business day turnaround
- — Private link, optional public sharing
Need something else? Contact us.
Who this is for
Sellers
Remove buyer uncertainty. A documented inspection report typically unlocks a meaningfully higher resale price.
Buyers
Independent due diligence before purchase. Know what you are buying, not what the seller says you are buying.
Bike shops
Refer customers shopping used inventory. We partner with shops across the Bay Area — get in touch.
About the service
Presidio Composites is an independent carbon fiber inspection service based in San Francisco. We are not affiliated with any bike manufacturer, shop, or marketplace. Our only output is the inspection report.
Inspection reports identify visible damage, manufacturing flaws, and areas of structural concern observable in the submitted photos. They are a documented professional opinion — not a liability-bearing structural certification. Our terms of service describe the limitations in detail.