The custom motorcycle you see here is what happens when two brands with strong opinions on how motorcycles should look and perform get together.
Thornton Hundred and K&N Filters teamed up on this £30,000 custom Triumph Bobber as a display piece for EICMA. However, it’s rideable, and importantly, it could be yours with an entry in their bike giveaway.
Two Brands, One Special Build
K&N Filters needs no introduction in motorcycle tuning circles. Its high-performance air and oil filtration products have been a go-to for customisers since 1969.
Thornton Hundred has seen a meteoric rise in the last decade, carving out a niche within a niche of custom motorcycle building. The Milton Keynes-based workshop has built a name creating aggressive, wide-wheeled Triumph Bobbers with an obsessive attention to detail. Intricate curved exhaust systems, fabricated entirely in-house, chunky tyres and muscular builds have earned a legion of admiring fans.
One of a Kind Bobber Build
This one-of-one Triumph Bobber build was completed in November 2025, engineered to pull K&N performance parts out of the shadows and place them firmly into the spotlight.
The team radically relocated the oil filter to sit front and centre on the frame and gutted the airboxes to rehouse the electronics. Every Thornton modification (of which there are many) was a race against the clock for the world’s biggest bike show, EICMA.
Thornton’s signature modifications are clearly on display, including wavy floating rotors, a gold chain, custom handlebars with bar-end indicators, a wide wheel kit and blacking out the front. The standout piece on the build is the twisted custom exhaust created with 72 precise individual welds, turning functional engineering into rolling art – in the workshop’s inimitable style.
The bike was unveiled at EICMA in 2025 to adoring onlookers, but now, it could be won by a lucky K&N customer by the time the show rolls into Milan again in November 2026. Read on for how to enter.
How to Enter
The competition runs until 7th November 2026, with the winner drawn at EICMA 2026.
If you’re a resident of the UK, European Union, Iceland, Liechtenstein, Norway, or Switzerland, all you need to do to enter is spend £25 or more on knfilters.co.uk or €30 on knfilters.eu (on an eligible purchase) and you’re automatically in.
Multiple orders mean multiple entries. There’s also a free postal entry route if you’d prefer. See the full details in the T&Cs.
If a K&N oil or air filter was already on your list, then great timing. If it wasn’t yet on your list, then what better incentive is there to test one? There’s currently free UK shipping for orders over £25 too.
Good Luck!
