Carbon bike inspection in the San Francisco Bay Area: who does what, where, and what it costs

Northern California's carbon repair capacity is mature but geographically decentralized. Local bike shops perform first-pass diagnostic triage. Structural restoration of composites is concentrated in specialist facilities, most of them in the adjacent Monterey Bay area. National mail-in providers handle the most complex diagnostic scans. The Bay Area carbon-bike-inspection question is rarely "where in San Francisco do I take this." It is "which tier of the regional network does this frame actually need."

This reference is the map. It covers the regional repair anchors, the local triage and rebuild role, the national mail-in network, and the practical decision logic for routing a frame to the right place.

Why carbon needs specialist inspection in the first place#

Carbon fiber fails in compression before it fails in tension. An impact, a crash, or even an over-torqued clamp can cause internal delamination or micro-cracking on the inner walls of the tubing while the external paint looks pristine. A frame can appear cosmetically perfect and still be one hard pedal stroke from a structural failure at a bottom bracket shell or head tube junction.

The practical consequence is a technological split. Fast, cheap, subjective evaluations (visual, acoustic tap) are available locally and everywhere. Quantitative instrument-driven proof of structural integrity (ultrasonic C-scan, pulsed thermography, X-ray) generally requires shipping a frame to a specialist with the equipment and the trained operator. The Bay Area network is structured around this split.

Calfee Design (La Selva Beach, Santa Cruz County)#

Calfee Design is the primary regional anchor for carbon frame restoration. Founded by Craig Calfee, located inside the Monterey Bay Academy campus, and processing over 25,000 repairs for riders, retailers, and manufacturers since 2003.

Operational terms that matter for the routing decision:

• Inspection fee. $100 per frame, waived if the customer approves the recommended repair.
• Turnaround. Roughly 2 weeks for unfinished structural repairs. 3 to 4 weeks when paint touch-up and custom finish restoration are required.
• Warranty. Most structural repairs carry a 10-year warranty against defects, non-transferable and limited to the original customer or shop.
• Scope. Structural repairs on carbon fiber frames only. Calfee rejects aluminum-to-carbon bonding, carbon handlebars, forks, seatposts, integrated seat masts, stems, carbon wheels, and metal frames.
• Disassembly requirement. Frames must arrive fully stripped. Otherwise a minimum $150 parts-removal fee plus a$50 storage fee apply. Return packing and handling is $20 for customers using BikeFlights or supplying their own labels.

Calfee also manufactures premium custom carbon frames (Tetra, Dragonfly, Luna on the road side; Cephal, Bamboo, Manta Adventure on the adventure and MTB side).

The scope strictness matters. A frame with a damaged carbon fork or seatpost cannot be repaired alongside the frame; those parts replace rather than repair. A frame with aluminum-to-carbon bonding (BB30 shell pressed into a carbon BB area, for instance) needs to be evaluated by a shop that handles that bonding type, which Calfee does not.

Carbon Solutions Repair (Watsonville)#

Carbon Solutions Repair has operated in Watsonville since 1989, handling over 8,000 frame repairs and custom paint work on more than 50,000 frames. Its distinguishing strength is an in-house painting operation with specialized airbrushing and refinishing equipment, making it the leading regional option for high-end paint matching and finish restoration alongside composite repair.

For a frame whose structural repair will require a paint match on a custom or discontinued finish, Carbon Solutions Repair is the regional shop that handles both ends of the work without a paint-shop handoff.

Local mobile triage and build support#

Within the Bay Area proper, local shops handle triage, disassembly, and rebuild rather than structural repair. The split is real and intentional: most local shops route composite repair out to manage liability and quality control.

• Velofix runs fully equipped mobile sprinter vans serving San Francisco and Marin. The vans service bikes at a client's home or workplace, commonly stripping components from a damaged frame before it ships to Santa Cruz County or out of state, then rebuilding when the frame returns. The strip-and-rebuild role specifically addresses Calfee's parts-removal fee structure.
• Ocean Cyclery in San Francisco offers local support for consulting, custom builds, and alignment checks.
• Encina Bicycle Centers (Walnut Creek / Clayton) explicitly recommends Calfee Design for carbon-frame repair, illustrating the local-shop-routes-out pattern across the East Bay corridor.
• Presidio Composites in San Francisco operates as an independent inspector providing in-person and photo-based carbon-frame evaluations with structured report forms, by appointment. The inspector role sits between local triage and shipping out for repair; the inspection report is the auditable evidence document a buyer, seller, insurance adjuster, or repair shop can act on.

National mail-in specialists for quantitative NDT#

For quantitative proof of structural integrity, Bay Area cyclists ship to a national network of specialists. The choice among them is partly methodology and partly logistics.

Note: "Carbon Bike Doctor" (Somersby, NSW, Australia; ultrasonic and digital tap; full frame and fork inspection from ~$495) and "The Carbon Doctor" (Walworth, WI; fluid compression molding using direct heat and silicone molds rather than vacuum bagging) are distinct businesses easily confused by name. The methodology differs significantly between them.

What NDT method to ask for#

The methodology choice depends on what the frame is being inspected for.

• Pre-purchase, suspected internal delamination on a frame with crash history or impact marks. Ultrasonic C-scan (Ruckus, TW Carbon, Carbon Bike Doctor) gives depth-resolved interface tracking on the laminate. Pulsed thermography (Presidio Composites in SF, Ruckus on the mail-in side) gives fast non-contact area coverage and is strongest in the near-surface envelope.
• Pre-purchase, frame looks clean visually but provenance is uncertain. A full frame and fork inspection from any of the instrumented providers documents the structural condition into a written report the buyer can act on.
• Post-crash documentation for an insurance claim or legal matter. A documented NDT report with photographs and instrument output establishes the structural condition at the time of inspection. The format matters as much as the methodology; an inspection that produces a written PDF with annotated indications is what an adjuster or attorney can attach to a claim.
• Known structural damage, need composite layup repair. Calfee or Carbon Solutions Repair in Monterey Bay; Broken Carbon if the bike is going to The Pro's Closet's CPO channel afterward; Ruckus or TW Carbon for the ultrasonic-NDT-plus-repair workflow.
• Suspected micro-stress cracks or fiber wrinkles from manufacturing defect. X-ray (Spyder Composites) is the method that resolves the family of defects optical and acoustic methods cannot.

Pricing reality#

The cost of a Bay Area carbon bike inspection ranges from local-shop-free (visual triage at a friendly shop) up to $495 (Carbon Bike Doctor full inspection mail-in to Australia). The middle bracket is roughly $100 (Calfee) to$275 (VeloColour Health Check) for a regional or specialist inspection without repair credit.

The repair-equation total cost, before deciding to proceed on a frame with suspected damage:

C_total = C_purchase + C_inspection + C_strip + C_repair + C_finish + C_ship + C_assembly

If C_total exceeds the fair market value of an equivalent undamaged CPO frame from a transferable-warranty channel (Broken Carbon's work backing The Pro's Closet, for instance), the rational answer is to walk away from the damaged frame and buy clean. The disciplined operator runs the equation before getting attached to a specific frame.

What this means for the buyer or seller#

The Bay Area carbon-bike inspection landscape is well served, but the right routing depends on what the frame needs and what the inspection is for. Local shops triage and rebuild but route structural repair to Monterey Bay specialists or national mail-in providers. Pre-purchase documentation lives in the mail-in specialist tier. Structural repair lives in Calfee or Carbon Solutions Repair. The independent-inspector role exists for the documentation work that does not require shipping the frame out.

The disciplined path: clear the serial through Bike Index before the meeting; audit the known failure points; tap-test every tube; commission a documented NDT inspection if the frame is high-value or has uncertain provenance; run the repair-cost equation against CPO value; walk away when the math or the provenance does not hold. The Bay Area network supports every step. The choice of which provider depends on what the frame is for and what evidence the inspection has to produce.