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2016 BMW R1200RS Gears - RPM - Speed

Discussion in 'R1200RS Tech and Performance Chat' started by Ben Russo, Jun 2, 2015.

  1. Ben Russo

    Ben Russo Active Member

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    You've got to be careful about running out of straight when over the ton.
    Takes a LOT longer to slow down at those speeds !!!
     
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  2. KOCook

    KOCook Active Member

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    I have lots of experience at it.
     
  3. KOCook

    KOCook Active Member

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  4. Brian63

    Brian63 Active Member

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    Yep i know what you mean 165 on the Auto bharn last year on my k1300s was very focusing but it was time to move on 28k on k1200 & 1300s 1 ticket and got a speed awarness course !
    as fellow Advanced rider pointed out i was well aware of the speed but not the police Helicopter it was north Wales after all 68 in a 60 trying to be good but failing lol
     
  5. hdready

    hdready Active Member

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    Interesting that the RS has the same gear ratio as the GS. On previous 1150 models, there was a road ratio (on R, RS) and a slightly different offered ratio (on GS and the Rockster as well) with the first three gears closer together and 4-6 further apart.
     
  6. Thomas Frothingham

    Thomas Frothingham New Member

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    Is it clear that the GPS speedometer is more accurate than the analog speedometer?
     
  7. Kyriv

    Kyriv Active Member

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    FYI, all speedometers are 5-10% optimistic, independently of the odometer, for legal reasons.

    Both will read high if your tires are a different profile than OEM, or over/under inflated. I would trust the GPS, short of counting mile markers with a stopwatch/chronograph.
     
  8. Brickhead

    Brickhead Active Member

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    A road-measuring speedometer (analog or digital) is sensitive to things like variances in wheel circumference (varies with tyre types and wear), and it is required to err on the "safe" side, rather than ever give too low a reading. A GPS on the other hand, may be only moderately accurate in absolute positioning, but *relative* positioning is accurate to within centimeters. Measuring distance travelled is always a relative one, the difference between two absolute positions. The other measurement the GPS' speed reading relies upon, is time. The chronometer inside every working GPS has to be very accurate, otherwise it wouldn't know its whereabouts at all. (If it's just 1 ms off, the calculated distance to each satellite is off by almost 300 km.) That's why the GPS always compares its time with the timestamp from the satellites, and even that needs to be compensated for the time the signal has spent "in flight".

    So yes, a GPS' ability to show a more accurate speed than the vehicle is pretty well established.
     
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  9. Teddy Bear

    Teddy Bear Member

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    Somebody was having fun in Poland: "2016 BMW R 1200 RS 0-200 km/h Acceleration & Top Speed"
     
  10. Grumpy Goat

    Grumpy Goat Well-Known Member Contributor

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    Granite Grey too ... :)
     
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  11. kent

    kent New Member

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  12. KOCook

    KOCook Active Member

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    Kents know great motorscooters when they see them. :)
     
  13. Bazza Beemer

    Bazza Beemer Well-Known Member

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    It takes about 10 minutes to write the ticket so 6 per hour x the fine. The helicopter probably costs 2000 quid per hour. They are desperate aren't they?
     
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  14. Hyun Soo

    Hyun Soo New Member

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    km version :)
     

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  15. wildoat

    wildoat Member

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    Interesting thread this, I recently rode my r1200r lc(2015) back to back with a r1200gsa and I'm certain my r1200r is higher geared, I'm getting approx 60mph to 3,000rpm in top gear,
    please bear in mind by bike is the much faster Cordoba blue colour!, lol.
    cheers
     
  16. Brickhead

    Brickhead Active Member

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    Well, the final drive ratios are identical on the R and the RS.

    K53 R, K54 RS: 31:11=2.82
    K50 GS, K51 GSA: 32:11=2.91
    K52 RT: 33:12=2.75 (optional: 31:11=2.82)
     
  17. Randal

    Randal Active Member

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    I clocked 230 km/h on a level staight , no wind and handling superb. Once got 240 on clock with slight decline and bike felt as if still excellerating, but neeldle could not move past the max indicated speed (without any luggage boxes). Bike gets to 220 easily without any strain.
     
  18. Randal

    Randal Active Member

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    With pro shift assist the excelleration will even be faster.
     
  19. SteveF

    SteveF New Member

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    124 mph (GPS) on New Mexico "autobahn" with panniers fully loaded. Seemed very stable. Worried a little bit about jackrabbits though and didn't push it very long. Bike might have done more if had the courage.
     
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  20. Grumpy Goat

    Grumpy Goat Well-Known Member Contributor

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    Grump managed 140 indicated (135 true) with panniers and top box loaded and 200# me on it. i backed off but it was still accelerating, albeit very slowly.
     
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