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BMW R100/7 Sport Bobber Is Actually More of a Scrambler, Fuses Genres Gracefully

BMW R100/7 Sport Bobber 16 photos
Photo: JAX Garage
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As JAX Garage of Melbourne, Australia was only founded about four years ago, the shop’s project archive is only home to a few builds. Still, each and every one of those is outstanding in its own right, so it’s only a matter of time before JAX gains worldwide recognition if they keep up the great work. Sure enough, Jas Babalija and his team show no signs of slowing down.
Although it’s been dubbed the Sport Bobber, the motorcycle we’re about to look at has some clear scrambler traits, as well. In its stock iteration, it used to be a BMW R100/7 from the model-year 1983, but a considerable chunk of its standard equipment is now a thing of the past. After a customary teardown, JAX got rid of the original subframe to make way for a tiny custom unit fabricated in-house.

It’s just large enough to support the bobber-style seat pan, which is in turn topped with premium black leather upholstery. Curving upward at the rear, the seat pan’s underside holds a minimalistic license plate bracket and a full suite of LED lighting components. All this paraphernalia rests on twin YSS shock absorbers with piggyback reservoirs and dual-rate springs.

On the other end, suspension duties are now managed by the inverted forks of a Suzuki GSX-R, and you’ll find bespoke triple clamps linking these to the R100/7’s frame. The aforementioned Gixxer donated its Tokico brake calipers, too, but they now pinch aftermarket discs measuring a healthy 310 mm (12.2 inches). Finishing off the upgraded front brake are braided stainless-steel lines from HEL.

JAX wanted some rubber that could handle both asphalt and dirt, so they installed Continental TKC 80 Twinduro knobbies at both ends. The dual-purpose tires measure 120/70 up north and 120/90 down south. Aside from the OEM fuel tank, the only other pieces of bodywork worn by the Sport Bobber are a couple of discreet fenders built from scratch.

The tank itself was repainted in a vibrant orange hue inspired by McLaren’s Formula One livery from the 2022 season. Moreover, its underside was revised to make space for the relocated electronics, which were modernized with a lithium-ion battery, fresh wiring, and a Motogadget controller offering Bluetooth connectivity.

Rick’s Motorsport Electrics supplied a new regulator/rectifier, while a keyless RFID ignition came from Motogadget. You’ll find more hardware from this brand in the cockpit, comprising a Chronoclassic dial, bar-end turn signals, and underslung mirrors. The handlebar came courtesy of Rizoma, but the billet aluminum grips were fabricated by Jas and his accomplices.

They rebuilt the R100’s boxer-twin engine, as well, installing a tailor-made crankcase breather, Mikuni TM34 carbs, and an aftermarket exhaust system that ends in dual Emgo silencers. Allegedly, the mill is now able to muster around 25 percent more power, and the bike’s total weight is said to have dropped by about 30 kilograms (66 pounds).
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About the author: Silvian Secara
Silvian Secara profile photo

A bit of an artist himself, Silvian sees two- and four-wheeled machines as a form of art, especially restomods and custom rides. Oh, and if you come across a cafe racer article on our website, it’s most likely his doing.
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