Buell Introduces The Race Only 1125RR


“The Buell 1125RR is designed to give privateer racers a turn-key machine to compete in the American Superbike class in AMA Pro Racing. We want to build on our program that has proven so successful for privateers in the Daytona SportBike class,” said Erik Buell, Chairman and Chief Technical Officer, Buell Motorcycle Company. This racing bike features a modified Helicon 1125cc (103mm bore x 67.5mm stroke) liquid-cooled 72-degree V-Twin engine. Power increases come from components including a larger airbox and intake manifold, revised valves and camshafts, a higher compression ratio, titanium exhaust system and other weight-reduced components. 

The 1125RR chassis is the standard 1125R design with fuel-in-the-frame, plus a billet axle adjustment system and chain-drive to allow gearing changes. Suspension travel is managed by fully adjustable units, with a Showa 43mm front fork and a remote-reservoir rear shock. A ZTL2 (Zero Torsional Load) eight-piston front caliper is mated with a modified front rotor. Buell Motorcycles.


9 Responses to “Buell Introduces The Race Only 1125RR”

  1. 1 nicker Jul 20th, 2009 at 10:03 pm

    Very Cool!

    Please add Nitrus & a Blower.


  2. 2 Boss Hawg Jul 21st, 2009 at 6:51 am


    Looking forward to see the BUELL kick some ass on the track.

    Boss hawg

  3. 3 Dave Blevins Jul 21st, 2009 at 9:19 am

    Definitely the best looking Buell in the past few years.

  4. 4 FUJI Jul 21st, 2009 at 10:59 am

    It is good to see the Company getting back into racing with a bike that is better suited for racing. BUT ! Lets have some parity in the classes they race in or create a class just for the Buels.

    Maybe with this bike being mass produced in race trim that will be possible.

    It’s like a two hundred pound bully teenager beating up on a five yer old with the current rules.

    “Pro Stock drag racing rules” are about as twisted as the AMA rules are. DMG [Daytona Motor Group] controlled.

  5. 5 Matt Wright Jul 21st, 2009 at 6:22 pm

    They better throw some sterroids at that thing. I’m guessing it would be racing in the superbike class due to it being bigger than a 1000. Some of the 1000’s are making 190hp. 220hp is probably a safe estimate out of superbike motors. Harley says it’s baby brother 1125r only pumps out 146hp.

    I wish it the best. HD has brought a lot of money and spectators to NHRA Pro Stock. Keep it up.


  6. 6 FUJI Jul 21st, 2009 at 7:52 pm

    Matt Wright

    Suzuki has had its day in the light. It became a one bike show for many years.with no other competition. LOW ENTHUSIASM !

    The NHRA needs to make the pro stock bike class for v- twins only. As it stands the four cylinder bikes are at a 900 cc plus disadvantage with little weight difference

    To say that Harley and Buell have bikes that are winning is a far stretch of the word. The engines that are being used by the Harley and Buell are a closer cousin to a block of aluminum that they are to a Motor Co casting. All they have is a stamped serial no in the name of Harley Davidson and Buell to make them legal. There is no relative closeness to a Harley engine.

    These bikes are as much Harley Davidson as John Forces funny car is a Ford other than the decals they carry. But fun to watch.

    What ever it takes to fill a grand stand is a direct reflection of the rules.

  7. 7 Matt Wright Jul 22nd, 2009 at 10:08 am

    Not really a response I expected on this board. Larry McBride doesn’t pilot a Kawasaki either. It is a beautiful Billet masterpiece

    I have taken your side of the argument for years It’s just not a popular on if you’re watching from the stands. Harley guys love seeing those bikes win

    I love seeing more people going to the track and spending money on our industry. HD funded Vance and Hines to field the Screamin’ Eagle bikes in NHRA ProStock just prior to their move out here to Indy. Harley paid for it, slaps their name on it, and fills the stands with V-twin lovers. It’s a win for everyone in the sport and industry.

    You are right though I believe I was told by Eddie Krawiec they use a genuine HD gas cap sticker on the bike. Everything else is purpose built.

    I’m not a huge fan of V-twin racing. Without being insulting you can throw as much or more money at a top fuel Harley, and never see times like Larry McBride runs. I have a piston on my desk that went 5.89@242. It’s smaller than a baseball. You can bet it didn’t come out of a V-Twin.

    The above article states it is a “turn-key machine to compete in the American Superbike class in AMA Pro Racing”. It will be as competitive as taking a stock 2002 gsxr 1000 out. That’s a big expensive class to run in. I hope someone steps up and proves me wrong. I’d love to see thousands more V-Twin riders at every AMA road race.

  8. 8 just my opinion Jul 23rd, 2009 at 6:22 pm

    cool bike but I bet it won’t keep up with a yamaha or honda

  9. 9 aaron Aug 5th, 2009 at 10:00 pm

    as far as I know, this thing will be racing 600cc fours, 675cc triples (triumph!), 850 cc watercooled desmo twins (ducati), 1000cc watercooled vtwins that are at least a 5 year old model (aprilia).

    so rotax takes several years of tech advances since they built the aprilia motor, boosts displacement by 12.5%, and fails to obliterate bikes half its size. let ducati race a 1098 motor in that class and watch what happens… wait, that wouldn’t be fair… they aren’t american!

    something’s wrong here… I’m guessing that if honda was still developing the rc51 v-twin, it would be prohibited from the class at 999cc – and who else gets to campaign a race only model in the “production racing” class? even if we disregarded the displacement advantage, do you think a buell could stand up to a moto2 bike?

    rant over – for now… watch harley rebadge an mv agusta inline 4, and be allowed to race a 750, 910, or larger in this class… how can a company with the resources of harley inc. continuously be allowed to play the underdog?

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