AFT Customs
12370 Martell Road, Martell, CA 95654  (209)223-3848
Website:         Email:

AFT Customs is a small shop in California, about 30 miles out of Lodi in Amador County. AFT Customs, a division of Amador Fine Tune, has been in business since 1987 under the operation of Jim Giuffra, one of the most renowned metric builders in the world. Jim has won more awards than I can count and his bikes have graced the pages of countless magazines.

Jim’s reputation for quality, design and engineering is among the best in the industry. He works on all the top metric manufactured bikes while specializing in Hondas. Jim was one of the first 500 factory trained certified Honda technicians in the US and today he has nearly 30 years experience with motorcycles and customizing metric bikes. Originally starting customization on Gold Wing motorcycles for fitment, comfort and practicality, today Jim and AFT Customs builds some of the most radical metrics in the world. From modifying bikes to fit its rider or full one-off builds, Jim and his team can handle it all.

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2006 Honda VT 750 Bagger, By AFT Customs
Jim Giuffra/Ron Abel


750 Honda Aero-Built for Motorcycle Cruiser

Magazine/Honda Hoot-Awards

    1st Place - Metric-Grand National Bike Show
    2nd Place - Custom Bagger-Bay Area Bike Bash

Honda VTX 1300
1st Place - Rats Hole Customs, Sturgis
     2nd Place - Bike Fest, Vegas
     3rd Place - World Championships 2005, Sturgis

   Grand National Bike Show - Outstanding detail
    ProClass EasyRiders - 1st Place, Portland
    L.A. Calendar Show - 1st Place, Long Beach
    Bay Area Bike Bash - Best in Show
    Radical Custom Bay Area Bike Bash - 1st Place


Honda VTX 1300

1st Rats Hole Customs, Sturgis
2nd Bike Fest Vegas
3rd Place World Championships 2005, Sturgis

Grand National Bike Show - Outstanding Detail,
1st Place, Pro Class EasyRiders, Portland
1st Place L.A. Calendar Show Long Beach
Best in Show, Bay Area Bike Bash
1st Place, Radical Custom, Bay Area Bike Bash


Credere (to believe)
AFT Customs-Jim Giuffra and Ron Abel
2004 Honda VTX 1300

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Performance: Engine: Design Performance 11:1 Pistons and Cams
Intake: Barons Customs
Exhaust HackerPipes-AFT Customs design
Paint: Scott Hultquist/Riff Raff Customs
Plating/Polishing: Meclec Metal finishing
Seat: Duane Ballard
Drive: Designed Performance drive chain
Suspension Kewl Metal-rear air ride VTX 1800 Front forks
Frame-Stock/AFT Customs stretch 1 inch
Wheels: Weld ~Tires Avon 250/40x18, 130/60x23

  AFT Customs-Radiator kit, Handle bars, cleavage cover, fuel tank, fenders, swing arm
All fabrication
Cat Eye Customs: Grips, Pegs
Formotion-Diamond Clock
HHI Left Side drive, Brake Calipers
K-Tech-Master Cylinders
Kewl Metal-Triple Trees, rear air ride, fork lowers
L. Mallard: Glass Tube for radiator fluid (water dyed blue)
Motion Pro-Throttle Cables
Magna Braid-Spark Plug Wires, AFT Customs Design
Vortex-Foot rests/AFT Customs design
Paul Yaffe-Gas Cap
Knowles Design-Machine Work

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