BMW AG Presse - BM Bikes, BMW Motorcycle Information
BMW AG Presse - BM Bikes, BMW Motorcycle Information
BMW AG Presse - BM Bikes, BMW Motorcycle Information
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<strong><strong>BM</strong>W</strong> <strong>AG</strong> <strong>Presse</strong><br />
Engine capacity increased by 45 cc, engine modified<br />
A number of technical measures and improvements serve to provide this<br />
increase in power and performance:<br />
Engine capacity, for example, has been increased from 1085 to 1130 cc by<br />
extending engine bore from 99 to 101 mm (3.90-3.98"), as on the R 1200 C.<br />
Stroke, in turn, remains unchanged at 70.5 mm or 2.78". This means that the<br />
R 1150 GS now features the cylinders of the R 1200 C (without the polished<br />
fins), including new pistons.<br />
Features carried over from the R 1100 S are the cylinder heads including the<br />
spark plug covers as well as the crankshaft. Like the R 1100 S, the R 1150<br />
GS (and all other Boxer models in future) furthermore comes with <strong><strong>BM</strong>W</strong>'s<br />
lighter cylinder head covers made of magnesium. Then there is also the new<br />
camshaft with valve timing serving even more than before to optimise the<br />
engine's torque curve.<br />
Motronic MA 2.4 and fully-controlled catalytic converter fitted as<br />
standard worldwide<br />
Like on the R 1200 C and R 1100 S, the digital engine management on the R<br />
1150 GS is masterminded by Motronic MA 2.4 replacing the former MA 2.2<br />
unit. And like every new <strong><strong>BM</strong>W</strong> motorcycle launched since 1997 (K 1200 RS, R<br />
1200 C, R 1100 S, and K 1200 LT), the new machine is fitted worldwide as<br />
standard with a fully-controlled three-way catalytic converter. Reflecting its<br />
increase in power and, as a result, the enhanced cooling requirements, the R<br />
1150 GS comes last but certainly not least with the larger oil cooler already<br />
featured on the R 1100 RT.<br />
New high-grade steel exhaust and silencer system contributing<br />
approximately 50 per cent to the increase in output<br />
Approximately 50 per cent of the improved power and performance of the<br />
new R 1150 GS is attributable to the all-new exhaust and silencer system<br />
made of chrome-plated high-grade steel and requiring suitable modification of<br />
the aluminium engine oil sump protector. Like on the R 1100 S, the two<br />
exhaust manifolds extending out of the cylinders, increased in diameter from<br />
38 to 45 mm (1.501.77") and connected with one another by an interference<br />
pipe,<br />
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