Carbon Fiber Bicycle Inspection
Independent, structured inspection reports for used carbon bikes. In-person by appointment in San Francisco, or photo-based online.
Example Report
2024 Giant Defy Advanced 1
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 the inspection is performed.
Book your inspection
Pick in-person or online. The intake form captures your bike details and contact information.
We inspect your bike
For in-person, bring your bike to us by appointment. For online, follow our photo checklist and upload from your phone.
We review
Every report is hand-written and follows our documented methodology. Turnaround is 1 business day for every tier.
Report delivered
A private link is emailed to you. Optionally make it public and share in your marketplace listing.
Flat rates. The same standardized report at every tier.
Online Inspection
Photo-based inspection from your phone. Full structured report. Private link, optional public sharing.
In-Person Inspection
Hands-on evaluation by appointment in San Francisco. Pulsed thermography on high-stress junctions.
Pre-Purchase Concierge
Everything in the in-person tier, plus a second NDT modality, written market valuation, and 30 minute consultation.
Reports delivered within 1 business day.
Who commissions an inspection.
For sellers
Remove buyer uncertainty.
A documented inspection report typically unlocks a meaningfully higher resale price.
For buyers
Independent due diligence before purchase.
Know what you are buying, not what the seller says you are buying.
For bike shops
Refer customers shopping used inventory.
We partner with shops across the Bay Area. Get in touch.