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Honda CB900 Crosses Over to the Aftermarket Side via Sydney-Based Workshop

Honda CB900 9 photos
Photo: Sp9ine via Return of the Cafe Racers
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If modified two-wheelers are a form of art, Sp9ine is probably a modern-day Michelangelo.
A few months ago, we took a look at Sp9ine’s remarkable portfolio, drooling over a magnificent work of custom art based on a 1982 Suzuki GS650G Katana. Its otherworldly design language certainly isn’t something you see on a daily basis, and the exploit we’ll be checking out today does a wonderful job at following that trend.

At its core, this project is based on a glorious 1981MY Honda CB900. In factory specification, this bad boy is put in motion by an air-cooled DOHC inline-four that boasts four valves per cylinder head and a healthy displacement of 901cc. The four-stroke powerplant is fully capable of summoning up to 95 untamed horses at 9,000 rpm, while a relentless torque output of no less than 57 pound-feet (77 Nm) will be produced at approximately 8,000 rpm.

This brutal force is transmitted to a shaft final drive by means of a five-speed gearbox, leading to a respectable top speed of 132 mph (213 kph). All things considered, it’s quite safe to conclude that Honda’s beast was a force to be reckoned with during the 80s.

After cleaning up the bike’s main frame, Australia’s moto surgeon kicked things off by cutting the CB900’s stock subframe. In its stead, he went about installing a one-off loop-style module that wears rear-mounted foot pegs to achieve a meaner riding stance. He also discarded the airbox and relocated the battery to a bespoke steel box that sits above the swingarm.

Next, holes were drilled around the rims of Honda’s legendary Comstar wheels to achieve a rugged aesthetic. The original gas tank has been chopped up, giving this custom creature a slimmer silhouette that makes it look twice as agile. In the performance department, the inline-four mill got honored with retuned carbs and a four-into-one exhaust system from Delkevic.

Furthermore, Sydney’s guru treated the CB900’s standard forks to a thorough overhaul, while a pair of top-grade aftermarket shocks arrived to handle rear suspension duties. Last but not least, the original lighting components were removed to make way for LED counterparts, except for that sexy round headlight.

To be quite frank, Sp9ine’s custom beast looks absolutely delicious, but we're eager to learn your take on it.
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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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