We only discovered KW last week, when we spotted this Yamaha Scorpio Z on Gastank Magazine’s Instagram account, and began prodding.
The bike belongs to a guy called Suparmin, who hadn’t started the bike for years and was about to give it away. Then he visited Knuckle Whackjob’s shop, and had a massive change of heart. (Partially because the lads were willing to drive over to his house immediately to pick the Yamaha up?something that three other workshops weren’t willing to do.)

The little Yamaha Scorpio commuter has a decidedly plastic vibe in stock form, so Knuckle kicked things off by ditching the bodywork, wheels and back part of the frame. The bike now rolls on 18? rims from TK Japan, fitted with oversized 4.00 Pirelli MT43s. There’s a new handcrafted subframe out back, supporting an appropriately skinny perch that’s tucked neatly into the frame’s kicked up rear loop. To emphasize the chopper feel, Knuckle dropped the bike by 20mm in the rear, leaving the forks at their stock height.

They also re-worked all the wiring into a new battery box under the seat. And if you’re wondering where exactly the air filter is, take a closer look, and you’ll see a section cut out of the box to accommodate it.
The cockpit’s rocking a requisite set of chopper bars, along with a mini speedo and some Daytona goodies. The headlight is from Posh Japan, and the bike’s fully street legal with turn signals, a taillight and ...