• Direct bolt-on triple clamp for popular Harley-Davidson® models (See product details tab for listing of known fitment applications)
• Allows use of popular OEM upside-down (inverted) sportbike forks or aftermarket forks
• As seen on Jody Perewitz Land Speed Bike and
  Skeeter Todd's Custom Built FXR124
• Reversible lower clamp for maximum fork height adjustability (Fork Extensions available here)
• Lower clamp is tapped for fork stops and a clearance hole for headlight mounting
• Upper clamp is tapped for headlight eyebrow
• Accepts handlebars with a 3.5" center-to-center spacing
• Includes threaded steering stem and jam nut to allow proper setting of bearing preload
• Steering stem is threaded 5/8"-18 for steering stem bolt
• Uses OEM H-D® (1" ID) bearings and seals (not included)
• Stock Dyna™ offset of 2.375" for 18"+ wheels sizes
• 214mm fork spread center-to-center e.g. Gen 2 Hayabusa
  (See technical tab for specific applications)
• CNC machined 6061-T6 billet aluminum upper and lower clamps
• 300 series stainless steering stem
• All stainless steel hardware
• Laser engraved logo
• Natural finish
• Weighs only 5.8 lb.
• Designed, machined and assembled in the USA
• Click to view V-Twin Triple Tree Installation Information

Brock’s Performance has professionally designed and fabricated Dyna Triple Trees with Reversible Bottom Clamp which will allow conversion of select Harley-Davidson® FXR™, Dyna™, Sportster™ forks to late model inverted sportbike forks to take your riding to the next level. These triple clamps not only allow the use of readily available OEM forks (GSX-R1000, Hayabusa, etc...,) but also simultaneously add the ability to use corresponding wheels and brakes, increasing overall suspension performance and comfort while providing world class braking options. Featuring zero (1-1) rake and the stock 2 3/8" Dyna offset (optional 1.7” reduced trail option available), we also accommodate the stock forks stops and lock (when possible.) Available in 50/54mm, 50/55mm, and 50/56mm and 207mm (GSX-R) or 214mm (Hayabusa) fork spreads. See overview and technical tabs for more info. Proudly made in the USA.

Known Fitment Applications:

• Harley-Davidson® FXR™ (87-94) (Including CVO)
• Harley-Davidson® Dyna™ (90-06)
• Harley-Davidson® Sportster™ (87-03)

All remaining years of FXR™, Dyna™ and Sportster™ will accept the clamp with small modifications. The clamp will also fit custom applications utilizing a 1” DIA Harley-Davidson® steering stem. This is a bolt on application for any frame with the fork stop on the front of the neck; all other frames will require a fabricated fork stop.

Triple Tree Weight Breakdown:

55mm fork assembly suggestions:

• Hayabusa (All Years) 214mm – 2 3/8" offset is typically more in line for use with custom 18” or 19” front wheels (depending on year, chassis, rake, etc. - see your custom builder) (most custom builders prefer Gen 2 Hayabusa front end assemblies due to their radial brake caliper design)
• ZX-14/R (All Years) (can possibly be used/rotor to caliper centerline must be verified and/or adjusted)
• ZX-10R (All Years) (can possibly be used/rotor to caliper centerline must be verified and/or adjusted)
• GSX-R1000 (09-16) Will fit, but are not suggested due to difficulty in fork design (no bottom bolt to disassemble, etc.)

(This is not a complete listing of options, these are suggestions based on known information)