TimHuber

89 months ago

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1986 GSXR-750R Rebuild

Potwin, Kansas, United States

The GSXR-750R in its natural habitat

The GSXR-750R in its natural habitat

The street legal race replica market has been a constantly evolving and fiercely competitive industry for roughly the past three decades. The 1986 GSXR-750 was arguably the very first bike in this class, and it undoubtebly ignited an arms race still lasting to this day. While Honda’s CB750 was an innovative street bike that could be raced, the GSXR-750 was the first race bike that could be ridden on the street. Just last week, a completely rebuilt 1986 GSXR-750R Replica went on sale in Orange County, CA, via sale by private owner. The completed bike was the culmination of a five year project, built by MotoRosso, a SoCal based shop, reportedly costing roughly $25,000 for all parts and labor (+ the bike itself). While this bike sadly isn’t all original, the attention to detail involved in its restoration is truly impressive, this rebuild was treated more like a piece of history than a motorcycle, and rightfully so.

velocity stacks, whats not to love?

velocity stacks, whats not to love?

One of the most innovative aspects of the 1986 GSXR was its frame which was a aluminum tubular frame, instead of the traditional steel frame that had been the norm in that era. The rigidity provided by the new frame allowed for cornering that was unsurpassed by any other manufacturer at that time. Suzuki also didn’t treat their race R&D as a totally separate entity to that of its production R&D department, opting to use new race inspired innovations on road-going models. When looking at the 1986 and 1987 GSXR-750’s used in professional racing, its easy to see that the production 1986 GSXR-750 is seemingly a blend of the two, sharing many common elements with both bikes. (pictures of 86 and 87 SERT GSXR-750s Below)

Suzuki-GSXR-750 1986

Suzuki-GSXR-750 1986

Suzuki-GSXR-750    1987

Suzuki-GSXR-750 1987

The GSXR-750 1986 Production Model

The GSXR-750 1986 Production Model

For a full history, dyno report, tech specs and track video of this immaculate 86 750, you can click here. The guys over at Asphalt and Rubber did an awesome article, showing the evolution of the GSXR over the past 33 years (SERT {Suzuki Endurance Racing Team} Models) that can be seen by clicking here. It includes a photo of every model year. These bikes were used in endurance racing which is why these race machines are equipped with headlights. Anyone interested in owning this unique piece of moto-history can do so for just $16,000USD as it's still available for purchase. Enjoy the photos, ride safe and happy holidays.

86 GSXR750R front/side

86 GSXR750R front/side

86 GSXR750R rear

86 GSXR750R rear

The GSXR's aluminum frame allowing for better cornering

The GSXR's aluminum frame allowing for better cornering

GSXR-750R w/o bodywork

GSXR-750R w/o bodywork

The GSXR's pristine powerplant

The GSXR's pristine powerplant

GSXR750R DYNO report

GSXR750R DYNO report

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TimHuber

89 months ago

@Nadz interesting you mention the cb1100r, I actually thought about that bike when figuring out how to write this piece. While the cb1100 came first, it was only sold in very limited numbers and didn't see anywhere near the same sales boom that the Gsxr had the year after its debut when its came to the US. Also the cb1100 was built to compete with the gs1100 (or was it the other way around?) and it remained more of a race machine than a production model. I'll finish this out by saying I was born in 89' so my expertise is fairly limited in this area.

 

the concept of having a bike with velocity stacks I think would make me nervous. I love the size and shape and appearance of them, but there's something about them I have difficulty trusting. Is there a mesh screen or something inside? How is debris filtered out?

Nadz

89 months ago

I think as long as you are moving forward, the rain wouldn't get into the velocity stacks.

Just as a point of note, in 1981 through to 1983 honda was producing the CB1100R series (I had a CB1100RD myself, an absolute ball tearer, even by today's standards, lol) which with its carbon fibre fairings and fully adjustable suspension-both in damping and anti-dive, was to my mind a racing bike that was only made road legal by a few additions like indicators and such.  I do feel that this bike was probably the reason why Suzuki's Katana series was brought into existance and as a result I feel that these two bikes are what really started the superbike wars.  🙂

TimHuber

89 months ago

Does anyone know how those velocity stacks are effected by rain? I've wondered this for a while.