If anyone in the world is qualified to build a Triumph street tracker, it is Bill Gately of Bonneville Performance. The man’s pedigree in unrivaled. A USMC veteran, Bill has run a Triumph Grand National Flat Track team for more than a decade. For five of those years, his was the factory Triumph team, utilizing a chassis that Bill himself designed.
Enter this custom Triumph street tracker, built as a street version of the race bike. The machine’s numbers are nothing short of staggering: 105 rear wheel horsepower, 72 lb-ft of torque, at a weight of around 350 pounds. Below, we get the full story behind what must be the baddest street-legal tracker in the world.
Triumph Street Tracker: Builder Interview
(Answers by Bill Gately of Bonneville Performance. Highlights by us.)
• Please tell us a bit about yourself, your history with motorcycles, and your workshop.
I am 67 and have been passionate about motorcycles since I was old enough to climb on one. I also have a passion for the Triumph brand and flat track racing.
This bike is a ground up build – the chassis is mine – I designed it in 2005 and for the past 11 years I have owned and managed a Triumph powered Grand National Flat Track Team in the series now known as American Flat Track.
From 2011 through 2016 I was the factory team for Triumph. I have taken off this year to develop a new Grand National Race Bike using the new Triumph water cooled twin. This too will have a proprietary chassis as well as an engine completely re-engineered to compete on the track.
• What’s the make, model, and year of the bike?
2017 Custom Triumph Street Tracker
• Why was this bike built?
To sell – this is how I fund some of my race team’s budget.
• What was the design concept and what influenced the build?
My Grand National Race Bike
• What custom work was done to the bike?
The bike is a street version of the race bike and for the most part it is completely hand built.
Chassis and swing arm are 4130 chromoly. The seat section is 6063 aluminum. The triple clamps are A&A Racing Billet Aluminum with adjustable offsets. The forks are 2004 Yamaha R6 with Ohlins internals.
The rear shock is a custom made Ohlins. The gas tank is hand formed aluminum and the seat is a fiberglass piece from First Klass Glass. The wheels are Performance Machine Dirt Track forged aluminum racing wheels. The electrics are Moto Gadget with a custom harness.
The engine is a re-engineered Triumph 2013 865cc. It is now a 995cc and has a dynamically balanced crankshaft Carrillo Rods, 96.5mm forged Pistons Custom ported head and valve train with a proprietary cam developed for me by WEB Cam. The engine produces 105 wheel HP and 72 foot pounds of torque and now has a 10,000 rpm rev limit.
- Dyno Chart: BP 995 cc Dyno 6202017
- Build Sheet: BP 2017 Street Tracker Build Sheet
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Here’s a video of Motorcycle.com tested one of Bonneville Performance’s previous street trackers:
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