Going, going, gone! World's Fastest Bobber sells for £38k

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This radical, supercharged, nitrous-injected Triumph Bonneville Bobber sold for a whopping £38,000 last week.

The bike, claimed to be the 'world’s fastest bobber' was built by Midlands custom Triumph specialists Thornton Hundred and featured in MCN earlier this year.

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Based on the standard £12,100 Bobber, its engine gained a Rotrex supercharger which, along with forged pistons and TTS engine cases, boosted power from 76bhp to a whopping 160bhp. Then nitrous oxide injection was added taking peak power up to an astonishing 201bhp.

The result can do not only 170mph but also a 10.49 second standing quarter and is claimed to be usable every day. The buyer’s identity is unknown but let’s hope they have very strong arms!


Watch MCN's Triumph Bonneville Bobber Black video review here:


World's Fastest Bobber: Outrageous 200bhp+ supercharged Triumph unveiled

First published on 20 May 2021 by Jordan Gibbons

Thornton Hundred Bobber

Think ‘bobbers’ such as Triumph’s chopped-down Bonneville are more about show than go? Think again. This radical, supercharged and nitrous injected version has just been unveiled and, with over 200bhp, is claimed to be the ‘World’s Fastest Bobber’.

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It’s the pet project of rising customising and accessories outfitters Thornton Hundred. Based near Silverstone and headed by Jody Millhouse, they specialise in bespoke, customised Triumph Bobbers and Scramblers, and have even picked up a few celebrity clients such as Joe ‘The Body Coach’ Wicks. But none of their bikes to date have been as extreme – or potent – as the new ‘WFB’.

"The idea was to build a bike for myself, something I could use for shows and rideouts," explains Millhouse. "However, things spiralled out of control and I became obsessed with making it faster.

"A few months in, as Covid hit, I made a conscious decision to make it the fastest, most powerful bobber in the world. The performance target was over 200bhp at the crank, we eventually achieved that at the wheel..."

Changes from the stock Triumph Bobber are everywhere. Apart from the Rotrex C15 Supercharger, it’s dry NOS injected, has TTS machined cases, forged pistons, a custom cam and updated clutch. The result is a measured 165bhp at the wheel without the nitrous boost, 202bhp with.

Jody Millhouse of Thornton Hundred

The chassis has Thornton Hundred’s ‘signature’ wide wheel conversion with billet hubs and Excel rims, plus a billet seat mount, custom seat and tyres. While the biggest challenge was adapting the electronics to cope with the huge performance hike. The result, Millhouse says, is: "Fully useable, it starts every time on the button and is built to be reliable."

Nor has he finished yet. Full Öhlins suspension and Brembo monobloc brake conversions are underway along with plans for custom paint and even 300bhp next winter. If you fancy one yourself, though, you may be disappointed.

"We’ve no plans to replicate the power figures as the costs involved would be astronomical," says Millhouse, adding that customers can, however, purchase some parts such as the seat and number plate mounts. "We plan for this one to stay in the family and evolve," he says. "It’s going to get used every weekend for rideouts, shows and drag racing events."

We’ll be finding out exactly what that feels like to ride soon...

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Phil West

By Phil West

MCN Contributor and bike tester.