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Rapid Dyno Day

 

 
 
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BIKE TESTS

DIAL 1300 FAST

They might have optional heated grips but that's about as nancy as these insanely fast 1300s get. Hold on and grin.

Test by Jeff Ware, Photography by Keith Muir & Pixel Pig


BMW

are on the move. In fact, they are rapidly encroaching on our turf. That is, infiltrating the performance world. WSBK racing on the soon to be released S 1000 RR, cleaning up in the WEC on the HP2 Sport and now giving performance buff's two seriously spec'd options for tearing up the tarmac in the K 1300 S and R. Who would've thought it. Before you yawn and turn the page - listen to me. If you are a Hayabusa or Blackbird fan, the K 1300 S will rock your world too. If you love the B-King, Speed Triple or Monster S4R, FZ1s, Brutale's or Z1000s then the K 1300 R is going to completely blow your mind. So keep reading.

WHAT'S NEW

In short, everything. So stick to reading all about that in the separate technical breakouts. BMW have revised the K 1300s from front to back. More than a simple capacity hike, the engine is internally brand new and so is the management system - which is much more refined. The chassis is lighter, sharper, more stable and the suspension is now compliant. Styling is improved beyond belief and the bike even sounds tough now. It's amazing. Before I delve into the experience of riding these things, I'll just remind you that the K 1200 S and R, as good as they were, never really impacted or impressed the sportsbike, hyperbike or performance nakedbike worlds. When the bikes were released they had the numbers on paper but without the performance on tap. Fuel management was woeful and the suspension was not up to the opposition either. Over the years BMW refined and improved the bikes, however, the S came last in our Hyperbike comparo in 2007 and the R came second to the B-King in our 2008 comparo of the two muscle nakeds. BMW needed to fix this bike. And a rebore was never going to do it. They needed to completely revise the bike - and they have. For 2009, the comparo's are going to be a much closer battle. Ze Germans are here!


The tech breakouts will teach you all about this technology. But on the street, it is the riding experience that highlights these features. We had what must have been the ultimate test loop for any bike. Freeway, twisties, rain, heat, wind, grippy conditions, slick conditions and even some dirt. Something that really stood out was how an almost identical-spec bike can become so much more of a radical machine once the 'bars are moved and fairings ditched. The S was smooth, refined, comfy and slick on the road. The R was completely pointless but at the same time, it was the most fun I've had on two wheels in a long time. With no fairing and a really upright riding position, the R is probably the fastest accelerating non-turbo bike I've ridden (we'll have to do a B-King head-to-head) and just makes any situation a laugh. Sustained speeds are difficult, comfort is not great, but if you want to get off your chosen bike in hysterics every time you ride then this is your bike. Quickshifter. Intake roar. Massive power. Total idiot factor. We want one badly here at Rapid HQ! I'm not going to make any excuses for BMW by focussing on safety or userfriendly features or matching riding gear or heated slippers. This is a revhead's machine.

Normal mode is OK most of the time and the Sport mode is harsh on all but smooth roads. The problem I had with the bike is the way the rear packs down and does not recover over a series of bumps - so you really cop a hard whack in the backside after about the third bump. The front reacts harshly to sharp bumps, which could be a high-speed damping issue. Either way I personally prefer the ride of a conventional set-up. 


ENGINE

The K 1300 S and R feature BMW's ESA (Electronic Suspension Adjustment) system, where not just the springs and dampers may be adjusted electronically at the touch of a button - but now also the spring rate. The front suspension features the Duolever launched in 2004 but now possesses a new longitudinal arm made of lightweight forged alloy. This reduces unsprung mass by approximately one-kilogram, with 115mm of spring travel available. The rear suspension uses BMW's proven lightweight Paralever with a wheel load distribution of 50/50. This enables the rider to lean the motorcycle over in a bend by more than 50-degrees (measured geometrically) thanks to the overall configuration of the suspension and engine. The overall weight of the main frame is a mere 11.5-kilograms. The engine is bolted firmly to the frame at six points and acts as a stressed member. The Paralever swingarm is made of a high-strength cast aluminium alloy and was redesigned for the K 1300 S in order to make an allowance for the change in dimensions, resulting in the upgraded ESA II system around the rear strut. The final drive housing is tailored to the inner contour of the angle drive, avoiding even the slightest waste of space. The new 10-spoke rims give the front wheel excellent radial stability and take up a high wheel load. At the same time, the front wheel takes up the main load exerted by high circumferential forces (when applying the brakes). The K 1300 S features the EVO brake system, already well known from the previous models. The brake lines on the EVO brake system are clad in steel for extra protection, with the rotors measuring 320mm up front and 265mm at the rear. The upper section of the fairing is 18mm slimmer and therefore even more sporting than before..


ELECTRONICS

There's more electronic rider aids than you can poke a stick at on the K 1300 series. ESA II lets the rider adjust the spring base and rate as well as the compression and rebound damping on the rear wheel. On the front wheel, adjustment is limited to rebound damping. To make this control function as simple as possible, the rider only has to enter the current load condition - solo, solo with luggage, or passenger with luggage. Adjustment of the appropriate spring base and spring rate is then automatic, with the system adjusting the individual values to one another. The rider may also choose the Comfort, Normal or Sports mode, electronic management then applying this data to determine the appropriate damping rates in accordance with the optimum parameters saved in the Central Vehicle Electronics (CVE). In all, this allows no less than nine different adjustment variants on the new K 1300 S. The K 1300 S comes as an option with ASC (Automatic Stability Control) fitted at the factory. ASC prevents the rear wheel from spinning when accelerating and thus losing lateral stability. By comparing the speed of the front and rear wheels with the help of the ABS sensors, the electronic control unit determines when the rear wheel is spinning, with the engine management retarding the ignition and intervening in the fuel injection process to reduce engine power accordingly.


 


CHASSIS & STYLING

The crankshaft of the K 1300 S is made from forged heat-treated steel and comes with eight counterweights as well as an offset angle of 180-degrees, traditional at BMW in order to ensure consistent firing intervals. The bore has been enlarged by one mm, while the stroke has been lengthened by 5.3mm to give 64.3 x 80mm figures and an overall 136cc capacity increase over the K 1200 S, now at 1293cc.


Both the main and connecting rod journals measure 38mm in diameter. The intake camshaft angle and the valve timing as well as the stroke of the outlet valves have been modified, with the outlet valve springs being re-set from the ground up.The conrods are extra-light, forged heat-treated steel components and measure 119mm in length. Newly developed lightweight box-type pistons measure 80mm in diameter and house two slender piston rings. Together with the bolts and rings, piston weight is a mere 287-grams. The balance shafts turn twice as fast as the crankshaft. To minimise any noise or sound waves generated in the process, the balance weights are connected to the balance shafts by means of elastomer units.


SPECIFICATIONS:

Please visit motorcycles.bmw.com.au or your local BMW dealer for the full info on the accessories and options available for the K 1300 Series.

2009 BMW K 1300 S & K 1300 R motorcycles.bmw.com.au Prices + ORC: K 1300 S $25,750 ($28,625 as tested) K 1300 R $22,700 ($27,835 as tested) Warranty: Two-years/ unlimited km Colours: Light Grey Metallic, Lava Orange Metallic, Graphite Grey Metallic/Light Grey Metallic/Magma Red Claimed Power: 127kW[175hp]@9250rpm Claimed Torque: 140Nm[103ft-lbs]@8250rpm Claimed Dry Weight: 228kg (S), 217kg (R) Fuel Capacity: 19L, 4L reserve Engine: Liquid-cooled, DOHC, four-valve, inline, four-cylinder, four-stroke Bore x Stroke: 80 x 64.3mm Displacement: 1293cc Compression Ratio: 13.0:1 Fuel Delivery: EFI, Digital Motor Electronics with Integrated Knock Control (BMS-K) Ignition: Digital Lubrication: Dry sump Exhaust: Four-into-one with three-way catalytic converter Gearbox: Six-speed, cassette style Ratios: 1 2.398, 1.871, 1.525, 1.296, 1.143, 1.015 Final Ratio: 2.82:1 (S) 2.91:1 (R) Final drive: Shaft Clutch: Wet, multi-plate, hydraulically operated Frame Type: Aluminium bridge frame, load-bearing engine, cast aluminium single-sided swingarm with Paralever Wheelbase: 1585mm Rake: 39.6-degrees Trail: 104mm Front suspension: BMW Duolever, central spring strut Rear suspension: Monoshock, ESA optional Front brakes: Semi-integral ABS, dual 320mm rotors, four-piston calipers Rear brake: Semi-integral ABS, single 265mm rotor, twin-piston caliper Front wheel: 3.50 x 17in cast alloy Rear wheel: 6.00 x 17in (S), 5.50 x 17 (R) cast alloy Front tyre: Continental 120/70 - 17 Rear tyre: Continental 190/55 - 17 (S), 180/55 - 17 (R) Seat height: 820mm Overall height (without mirrors): 1221mm (S), 1095mm (R) Overall width (with mirrors): 905mm (S), 856mm (R) Overall length: 2182mm (S), 2228mm (R) Instruments: CAN-bus system with BMW Info-Flatscreen containing coolant, time, gear, speedometer, odometer, tachometer, ESA, ASC, fuel level, reserve and average consumption, high beam, indicators, neutral, trip meters, average speed (K and S feature different layouts)

 

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