For Sale: Triumph “Knucker” by Mr Martini

Triumph Thruxton Street Tracker

Triumph Thruxton 900 “Knucker” by Italy’s Mr Martini…

The original Triumph Thruxton was a production-class racer based on the T120 Bonneville, hand-built in the company’s factory race shop. In 2004, Triumph brought back the Thruxton name, attaching it to the café racer version of the Bonneville with an upgraded engine, rearset footrests, small flyscreen, analogue instrumentation, reverse-cone mufflers, seat cowl, and more. The Thruxton 900 made 68 bhp, and in the USA, the American Historic Racing Motorcycle Association (AHRMA) developed the Triumph Thruxton Cup Challenge, a spec-class road racing series.

Triumph Thruxton Street Tracker

Enter famed builder Nicola Martini — better known as “Mr Martini”– who has more than 25 years of experience building custom motorcycles. Heavily inspired by art and 60s / 70s style, he’s become one of the icons of the customs world:

“Mr Martini is a brand made out of sheer passion, dedication, research and unique creativity.”

Triumph Thruxton Street Tracker

Recently, we featured Mr Martini’s Harley Softail cafe racer, and now he’s back with this Triumph “Knucker,” based on a carbureted 2004 Thruxton 900 with an array of modifications. We especially love the motard-oriented vibe of the build, as well as the high exhaust and forged 17-inch Marchesini wheels. Best of all, this custom Triumph is for sale! Be sure to contact Mr Martini for more information.

Triumph Thruxton “Knucker”: In the Builder’s Words

Triumph Thruxton Street Tracker

Knucker can live in any garage, but it must be silent and dark. At the first light of dawn it begins to light up slowly, ready to be tamed and devour asphalt and kilometers of road. With its engine it can face any challenge and never goes unnoticed. The slender and sinuous line juggles the traffic and runs fast in the desolate spaces.

Triumph Thruxton Street Tracker

The front white eye illuminates and traces the path, the rear red one warns and advises not to get too close. Its shiny black color, soft leather on the back, the particular cream rims are an invitation to play. Its vapors are vented through two narrow lateral nostrils whose noise becomes unmistakable and unique.

Triumph Thruxton Street Tracker

Knucker runs, hisses, puffs, challenges princes like in fairy tales, but surprisingly he wins and the modern princesses want to get on the saddle alone! Knucker is the (good?) Dragon that adults can play with, returning to childhood memories of terror and attraction.

Triumph Thruxton Street Tracker


The chassis, engine and swingarm of the Thruxton with carburetors remain original. Aesthetically, the bike has undergone several modifications. A small 1970s KTM tank, a crafted black saddle signed by Mr Martini, an old-style headlight and a shorter cream-colored rear mudguard have found their place. This color was also chosen for the painting of the new Marchesini rims.

The Zard exhaust (in the catalog for the Scrambler model) finds its place in this unusual Thruxton, giving it an off-road “Motardian” spirit.

Triumph Thruxton Street Tracker

As regards the chassis, the replacement of the upside-down front axle, the 17-inch front rim, the rear suspension with ultra-adjustable Ohlins shock absorbers with variable wheelbase and Dunlop Mutant tires have made it possible to make this bike a fantastic special to ride on any route.

Here’s a link to the full technical sheet: Technical Info Knucker pdf.

Follow the Builder

Facebook: Special Mr Martini
Instagram: @specialmrmartini


  1. Great looking bike!! Very nice job!

  2. Nice! Salute!

  3. Lowflying

    Nice bike but “cream” wheels and rear fender? This isn’t a ’55 Chevy…sorry, but so many colours out there. Why cream?

Leave a Comment

Your email address will not be published. Required fields are marked *