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Business Details
50 Years
experience
Trusted Motorcycle Parts & Service in San Francisco
KC Engineering has been serving motorcycle enthusiasts in San Francisco since 1976. Founded by Kenneth Joseph Cresci, our shop combines over 110 years of combined mechanical expertise with a commitment to comprehensive service and quality parts. We specialize in motorcycle tire sales, brake repairs, suspension tuning, ignition systems, and custom fabrication. Our family-owned business maintains the largest tire inventory in the Bay Area with over 2,000 in-stock options. Our team of certified mechanics provides same-day service for most repairs while offering competitive pricing through our price-match guarantee. We've evolved from a drag racing engine shop to a full-service motorcycle destination, maintaining San Francisco's oldest singularly owned motorcycle shop status.

Our facility houses specialized equipment for wheel truing, welding, and engine rebuilding, backed by a two-month warranty on all work. We serve riders of all motorcycle makes and models, offering both OEM and premium aftermarket parts. Our bilingual staff (English/Spanish) supports customers through in-person visits, phone consultations, and online inquiries. With three generations of mechanical expertise, we continue innovating while maintaining our founding commitment to technical excellence.
Services
Motorcycle Tire Sales Brake Repairs Suspension Tuning Ignition Systems Wheel Straightening Custom Fabrication Engine Rebuilding Chain & Sprocket Replacement Electrical System Repair Battery Services
Details
  • Year established: 1976
Highlights and features
  • Family-owned since 1976 with three generations of mechanical expertise
  • Largest tire inventory in the Bay Area with over 2,000 options
  • Same-day service available for most motorcycle repairs
  • Two-month warranty on all shop services
  • Bilingual English/Spanish staff serving the SF community
Associations and certifications
  • United States Chamber of Commerce
What people say
Largest tire selection Expert mechanics Same-day service Price-match guarantee Bilingual staff
Services
Motorcycle Tire Sales
We maintain the Bay Area's largest motorcycle tire inventory with over 2,000 in-stock options. Our price-match guarantee ensures competitive pricing while our experienced technicians provide professional mounting services. Same-day installation available for most tire purchases.
Brake Repairs
Our certified mechanics diagnose and repair all motorcycle brake systems. We stock EBC brand components and fabricate custom brake lines. Most brake jobs completed while you wait using premium replacement parts.
Suspension Tuning
We offer suspension upgrades and repairs including shock absorber replacement and fork spring installation. Our technicians specialize in performance tuning for customized ride characteristics. Stocking premium aftermarket components for immediate service.
Ignition Systems
From basic tune-ups to advanced ignition mapping, we service all motorcycle electrical systems. We manufacture custom spark plug wires and stock complete ignition replacement kits for improved performance and fuel efficiency.
Wheel Straightening
Our specialized equipment handles both spoke and mag wheel truing. We offer on-site straightening services for damaged wheels, restoring proper alignment and balance for safer, smoother rides.
People
Kenneth Joseph Cresci
Owner
Founder with 45+ years in motorcycle mechanics. Established KC Engineering in 1976, transforming it from a drag racing shop to the Bay Area's premier motorcycle service center.
Stephanie Cresci
Parts Department/General Manager
Manages inventory and operations with 20+ years of motorcycle parts expertise. Ensures our 2,000+ tire stock meets customer needs while maintaining quality standards.
David Wong
Head Mechanic
Lead technician with 30+ years of motorcycle repair experience. Specializes in complex engine rebuilds and custom fabrication projects requiring precision welding and machining.
Daniel Martines
Mechanic Intern
Emerging technician trained in modern motorcycle systems. Assists with routine maintenance and specialized repairs under senior mechanics' supervision.
Questions
What services does KC Engineering offer?
We provide motorcycle tire sales, brake repairs, suspension tuning, ignition system work, wheel straightening, and custom fabrication. Our mechanics handle all makes and models with same-day service options.
How long has KC Engineering been in business?
Since 1976, making us San Francisco's oldest singularly owned motorcycle shop. We've served the Bay Area community for over 45 years.
What payment methods do you accept?
We accept cash, credit cards, and offer cash discounts. Save $10 on purchases over $100 or get 2% off work orders over $200 when paying with cash.
Do you offer price matching?
Yes, we guarantee the lowest tire and mounting prices in San Francisco with our storefront price-match policy (conditions apply).
What are your service hours?
Open Monday-Friday 10AM-5PM, Saturday 10AM-2PM. Closed Sundays. Emergency appointments available by arrangement during regular business hours.
Do you service all motorcycle types?
Yes, we work on all makes, models, and ages of motorcycles. Our technicians have experience with both vintage and modern bikes across all performance categories.