BMW Other tech info
BMW Other description
2013 Bmw R 1200 GS, Here Now!!!! - BMW has revolutionized its sacred boxer-Twin. It is not the first time, but switching from traditional air cooling (air/oil cooling, lately) to liquid cooling symbolizes the most radical departure from the reasons that, in 1923, led BMW technician Max Fritz to turn 90 degrees an already-existing longitudinal boxer-Twin to create the R32 model. This was the first bike featuring a transversely mounted boxer-Twin that cooled much better than when placed according to the original orientation. Now, what BMW calls “precision cooling,” derived from its experience with Formula One engines, circulates a specific coolant only around the sections of the engine that experience the highest temperatures: the heads and upper section of the cylinders where hot combustion gases expand. The rest of cooling remains entrusted to air circulating through appropriately dimensioned fins. The coolant is based on glycolethylene like that used in aircraft piston engines and allows the use of two inconspicuous radiators to keep the BMW R series’ “clean” look. Compared to the previous air/oil cooling system, this latest one increases weight by six pounds. The new engine retains the same 101.0 x 73.0mm bore-and-stroke measurements of the previous R1200, but that is where the commonality ends. The thermodynamic section is totally new and much more rationally designed and laid out than it was in the last “radial-valve” unit that, among other complexities, included camshafts with one inlet and one exhaust cam lobe each. Now, the dohc valvetrain is simplified and driven by a single loop of chain. Valve diameters are 40mm (inlet) and 34mm (exhaust), and the valves are angled at 8 degrees and 10 degrees, respectively, for an included angle of only 18 degrees. This narrow included angle and the finger-type cam followers are also inspired by F1 engines. The combustion chamber is very compact and a 12.5:1 compression ratio has been achieved with slightly dished pistons for a high thermodynamic efficiency. The engine breathes through downdraft 52mm throttle bodies to deliver a claimed 125 horsepower at 7700 rpm and 92.2 foot-pounds of peak torque at 6500 rpm. The crankshaft is now much more compact, thanks to the reduced width of the connecting rods and consequent reduced parallel misalignment of the opposing cylinder. This was possible thanks to the enlarged diameter of the crank journals, from 48mm to 50, which increased the load capacity of the related bearings, thus reducing their width. The main journal diameters were reduced from 60mm to 55. The new crankshaft is more rigid and lighter. The reduced misalignment of the cylinders causes less rocking imbalance and related vibrations, and favors the much-higher rotational speed needed to produce the new level of power. Also new ar
BMW Other for Sale
- 2012 bmw r 1200 gs sport touring (US $17,000.00)
- 2012 bmw k1300s standard (US $14,990.00)
- 2002 bmw k 1200 lt touring (US $6,200.00)
- 2009 bmw r 1200 rt touring (US $12,995.00)
- 2006 bmw r series gsa dual sport (US $13,500.00)
- 2008 bmw g650 xcountry(US $2,850.00)
Moto blog
WSBK: 2012 Misano Results – Video
Tue, 12 Jun 2012Max Biaggi strengthened his hold on the 2012 World Superbike Championship lead with a pair of wins at Italy’s Misano circuit. The Aprilia rider out-battled the Althea Ducati duo of Carlos Checa and Davide Giugliano to win Race One before taking a relatively easier Race Two victory. Before the races, WSBK riders lined up on the starting grid to hold a banner expressing their support for the Emilia region in northern Italy which has been suffering from earthquakes and continuing aftershocks since late May.
2015 BMW R1200GS Receives Minor Update and New Options
Fri, 04 Jul 2014The liquid-cooled BMW R1200GS receives a slight tweak for 2015 along with new optional quick shifter and keyless ignition system. The Adventure version also gets these new options as well as new choices to lower the seat height. The 2015 GS receives the heavier crankshaft introduced on the 2014 R1200GS Adventure and R1200RT.
2012 US Motorcycle Sales Results – Industry Reports 2.6% Increase
Tue, 05 Feb 2013The Motorcycle Industry Council reported a 2.6% increase in motorcycle sales in the U.S. market for 2012. According to the industry group’s figures, American consumers purchased 452,386 motorcycles in 2012 compared to 440,899 motorcycles in 2011.
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