Buell 1125R: review, history, specs

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Gambar motor Buell-1125R 2010 3.jpg
Buell 1125R
Manufacturer
Production 2008 - 2011
Class Naked
Engine
liquid-cooled, four-stroke, 72-degree V-Twin
Bore / Stroke 104.1mm x 104.1mm
Compression ratio 12.3:1
Horsepower 146.04 HP (108.9 KW) @ 9800RPM
Torque 81.87 ft/lbs (111.0 Nm) @ 9000RPM
Spark Plug NGK DCPR7E '08
Battery YUASA YTX12-BS '08
Transmission Gear box: 6-speed, manual

Final Drive: belt

Clutch: slipper clutch
Final Drive Belt `08-09[1]
Suspension Front: 47mm Showa upside-down fork
Rear: Showa fully-adjustable shock absorber
Brakes Front: single 375mm disc, 6-piston caliper, ZTL2-type
Rear: single 240mm disc, 2-piston caliper
Front Tire 120/70 ZR17
Rear Tire 180/55 ZR17
Wheelbase 54.49 inches (1384 mm)
Length 78.58 inches (1996 mm)
Width 28.19 inches (716 mm)
Seat Height 30.51 inches (775 mm)
Weight 375.01 pounds (170.1 Kg) (dry), 170.0 kg (wet)
Oil Capacity 0.82 Gallon (3.10 Liters)
Fuel Capacity 5.28 Gallon (20.00 Liters)
Manuals Service Manual


The Buell 1125R was a liquid-cooled, four-stroke, 72-degree V-Twin Naked motorcycle produced by Buell between 2008 and 2011. Max torque was 81.87 ft/lbs (111.0 Nm) @ 9000 RPM. Claimed horsepower was 146.04 HP (108.9 KW) @ 9800 RPM.


History[edit]

In July 2007, Buell announced the 1125R, a sportbike which departed from Buell's history of using Harley-Davidson Sportster based middle weight powertrains and tapping into the XBRR racing bike learnings. The Rotax powertrains uses four valves per cylinder, dual over-head cam, liquid-cooled 72 degree V-Twin displacing 1,125 cc and producing 146hp. It produces 83ft-lbs of peak torque but varies less than 6ft-lbs of torque from 3,000 to 10,500 rpm. There is a vacuum assist slipper clutch to give predictable drive performance in hard cornering and deceleration and a 6-speed transmission.

The engine was developed by Rotax and built in Austria.[2] The design had significant Buell input, and was funded through Buell's cashflow, likely for 15–20% of the V-Rod engine development cost.[2]

The 1125R did not have a full fairing, as that would have put it in the same class as Japanese sportbikes.[2] Erik Buell agonized over this, saying "it's not about listening to the voice of the customer."[2] Cycle World said the 1125R was "a bit of an oddity."[2] The bike was initially released with a crude spark map, leading to criticism of the bike at low speeds.[2] The Rotax engine also ended up costing significantly more by production time due to fluctuation in exchange rates.[2]


Engine[edit]

The engine was a liquid cooled liquid-cooled, four-stroke, 72-degree V-Twin. A 104.1mm bore x 104.1mm stroke result in a displacement of just 1125.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).

Drive[edit]

The bike has a 6-speed, manual transmission. Power was moderated via the slipper clutch.

Chassis[edit]

It came with a 120/70 ZR17 front tire and a 180/55 ZR17 rear tire. Stopping was achieved via single 375mm disc, 6-piston caliper, ZTL2-type in the front and a single 240mm disc, 2-piston caliper in the rear. The front suspension was a 47mm Showa upside-down fork while the rear was equipped with a Showa fully-adjustable shock absorber. The 1125R was fitted with a 5.28 Gallon (20.00 Liters) fuel tank. The bike weighed just 375.01 pounds (170.1 Kg). The wheelbase was 54.49 inches (1384 mm) long.



2010[edit]



2009 Buell 1125R[edit]

The 2009 MY Buell 1125R is the first model to be equipped with an in-house developed engine, a liquid-cooled, four-stroke. 1125cc, 72-degree V-Twin powerplant mated to a six-speed manual transmission with a belt final drive and can produce a claimed 146 horsepower and 111 Nm of torque.

It also comes with standard features such as a small fairing with an adjustable windscreen, two side-mounted radiators, a large, ZTL2-type, 375mm single disc as a front braking system with a 6-piston caliper, a fully-adjustable Showa suspension package composed of an upside-down fork in the front and a mono-shock in the rear, a digital and analogue instrument cluster and a hollow aluminum frame that doubles as a fuel tank.


2010 Buell 1125R[edit]

The 2010 MY Buell 1125R is a powerful, American-built street-fighter that comes with a small fairing with an adjustable windscreen, two side-mounted radiators, a large, ZTL2-type, 375mm single disc as a front braking system with a 6-piston caliper, a fully-adjustable Showa suspension package composed of an upside-down fork in the front and a mono-shock in the rear, a digital and analogue instrument cluster and a hollow aluminum frame that doubles as a fuel tank.

In the engine department, it sports a liquid-cooled, four-stroke, 1125cc, 72-degree V-Twin powerhouse paired to a six-speed manual transmission that can reach a maximum power output of 146 horsepower and 111 Nm of torque.


2011 Buell 1125R[edit]

The 2011 MY Buell 1125R boasts a maximum power output of 146 horsepower and 111 Nm of torque from its liquid-cooled, four-stroke, 72-degree V-Twin engine that was mated to a six-speed manual transmission with a low-maintenance belt final drive.

Also, it boasts standard fittings such as a small fairing with an adjustable windscreen, two side-mounted radiators, a large, ZTL2-type, 375mm single disc as a front braking system with a 6-piston caliper, a fully-adjustable Showa suspension package composed of an upside-down fork in the front and a mono-shock in the rear, a digital and analogue instrument cluster and a hollow aluminum frame that doubles as a fuel tank.

References[edit]

  1. 2019 Western Power Sports Catalog. Western Power Sports. 2019. 
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Anderson, Steve. "The Demise of the Buell Motorcycle Company", Cycle World, 2010-05. Retrieved on 24 March 2010.