Trask Performance Gets Medieval on a FXR | Hot Bike

Trask Performance Gets Medieval on a FXR

"FXR frame meets S&S 143 and Trask turbo"

Where do you go when you’ve already had a Trask Assault bike? The things have mega-motors upgraded with Trask Turbo kits, full custom parts, and so forth. You can’t keep moving in the same direction; anything with more power belongs at a dragstrip more than a street. Or does it?

Dan Davies from Chicago loved his first Trask Assault bike so much that he just had to have another one. Rather than keep going with what they’d done in the past, Trask Performance took Dan’s latest project in a different direction without losing all of the crazy muscle for which the Assault series machines are known.

Trask Performance Assault

Trask Performance turbo, Trask V-line Moto Bars, and Kraus triple-trees with Öhlins forks.

Louis Hernandez

“The timing was perfect because we were champing at the bit to have an excuse to build an FXR with our spin on it,” Nick Trask told us. “Dan laid out his stipulations: He wanted a bike he could ride fast, grudge race if need be, and make a statement wherever he went. We put our team on it and went to work, completing all the fabrication, machining, and assembly in-house."

The goal here was to design a bike that handles like a dream, stops on a dime, and has smooth power that doesn’t stop pulling until you say so. Centering a project like that around a BBC FXR chassis was perfect. This bike was built to race but with daily riding reliability. What else would you expect from an S&S T143 powerplant cradled by a modified FXR frame and mated to a Trask Performance custom-built turbo kit and high-flow fuel system?

Trask Performance Assault

Trask Performance turbo's exhaust end; Beringer Low-mount caliper with Trask rotor.

Louis Hernandez

Obviously, the rest of this badass ride is centered around that killer combination of power and handling. Trask Performance supplied generous heaps of performance enhancement throughout Dan’s FXR. Öhlins forks and a custom-built JRI shock set make for deep lean for serious canyon carving, while a Baker Drivetrain transmission and clutch transmit all of that raging power to the chain drive and back wheel. Trask chose BST carbon-fiber hoops front and rear to keep weight down; there was no skimping done anywhere on this awesome piece of machinery.

What all of this adds up to is a high-end performance bike with as much power as you could ask for without stealing the Millennium Falcon. Trask Performance wasn’t shy about building this masterpiece, and the team is even less bashful about discussing the numbers: The custom-built Trask turbo system and high-flow fuel system, combined with the S&S T143 motor, reportedly produces 300-plus hp and 280 pound-feet of torque, providing the big power we all love. For as much as the shop loves building custom baggers, this Assault FXR build was a refreshing change of pace, and if they had to do it again, they wouldn’t change a thing!

Trask Performance Assault

Dan Davies' FXR speed demon prowling the desert.

Louis Hernandez

Owner Dan Davies
Shop Trask Performance
Shop Phone (623) 879-8488
Year/Make/Model 2017/Trask/FXR Assault
Fabrication Trask
Build Time 6 months
Year/Type/Size 2017/S&S/T143
Builder Trask
Cases S&S
Cylinders S&S
Heads S&S
Rocker Boxes S&S
Cam(s) S&S 635
Throttle Body 70mm S&S Throttle Hog
EFI Controller ThunderMax
Exhaust Trask Custom High Output Turbo System
Year/Manufacturer/Type 2017/Baker Drivetrain/GrudgeBox with reverse shift pattern & electronic shift interrupt
Gears 6-speed
Clutch Baker Drivetrain King Kong
Primary Drive Solid sprocket, chain drive
Year/Type FXR/2017 Modified BBC
Rake/Stretch Stock
Front End Öhlins
Length Stock
Triple Trees Kraus
Swingarm Macintosh/Brock’s Performance
Rear Shocks Custom built by JRI
Wheels, Tires, and Brakes
Builder/Size Brock’s Performance Carbon Fiber BTS/19 in.
Tire/Size 19 in.
Calipers Radial Beringer
Rotors Trask
Builder/Size Brock’s Performance Carbon Fiber BTS/17 in.
Tire/Size Shinko/17 in.
Caliper Low-Mount Beringer
Rotor Trask
Sprocket 530 chain-flat
Manufacturer Specialty Coatings
Colors Automotive Paint & Cerakote
Paint/Graphics Specialty Coatings
Powdercoating Specialty Coating
Front Fender Carbon fiber
Rear Fender FXR sheet metal modified by Trask
Gas Tank Dyna EFI Tank modified by Trask
Dash Custom fabricated by Trask
Gauges Autometer
Handlebars Trask V-Line Moto Bars
Grips Trask
Mirrors Joker Machine
Hand Controls Performance Machine Contour
Foot Controls Harley-Davidson
Pegs Trask
Headlight Dual Vision X
Taillight Laser Star Bullets
License Mount Trask Side Mount
Seat Guy’s Upholstery


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