The Suzuki GSX-R750RK, also known as the RR (which stood for race replica) was a "straight-out-of-the-crate" racer and only 500 were produced. They weren't imported into North America, so here is a rare opportunity to pick one up here in the states.
I will admit that I was not familiar with the RR/RK model from 1989, but according to the sellers post (and wikipedia), the bike had a significant number of upgrades from the standard model
"The 'Double R' received a new 40mm Slingshot carburetor, a 4-into-1 exhaust pipe, a close ratio gearbox, new rear swingarm and sub frame, new aerodynamic fiber bodywork with large air intake duct, solo seating with race number box and a 19 liter aluminium fuel tank as standard equipment. The dry weight 411lbs and 120hp at the wheel rivals some modern sport bikes to this day."
Perhaps the biggest changes were in the engine which reverted back to the long stoke design while also receiving upgrades.
"The RK was designed to be a bike which could be tuned easier than its short-stroke predecessor. Racing teams which were already adept at tuning the long stroke engine and so were more familiar with this revived long stroke design, The newly redesigned engine reverted to the original long stroke (70 x 48.7mm) configuration. Crankcase, crankshaft connecting rods and clutch were among the critical areas receiving more attention necessary for the race duty."
This particular example certainly looks very clean but the pictures indicate two different exhausts were on the bike and the windscreen may be an aftermarket piece. Also, it does have 10k+ miles which for a repli-racer may mean some aggressive track use in the past and the seller indicates the bike is registered in California but has an EU title (???) so it may take a bit of work to get titled with the local DMV.
Prices for bikes like these are hard to figure but a bit of research shows that back in 2012 another RR was estimated to be worth 20-25. That's right in line with other WSBK repli-racers like the RC30 and OW01.
Note: This is my first official post as a contributing author to RSBFs.com. Hope you enjoy!