Shift cam or not?

[Boxerlust]

So much wrong information....The aircooled R Nine T boxers were EU-3 from 2014-16 and are EU-4 from 2017 on.There are no EU-5 R Nine T bikes and we will see if there will be any from 2021 on.THe EU-3 R Nine T's had a nice sounding backfire and a little stronger mid-range...I had a EU-3 2016 R Nine T myself and compared it to a EU-4 R Nine T Pure.Not too big of a difference though.
As for the EU-4 2017/18 R1200GS they were dogs and felt like the mid-range was missing compared even to the EU-3 2013-2016 EU-3 R1200GS...I hated my 2017 R1200GSA and could not believe how EU-4 had ruined the bike.Now the 1250GS shift-cam is night and day better than even the EU-3 boxers.Real strong mid-range and none of that mechanical clatter sounding like an old slash/five in dire need of valve adjustment sitting at a red light...The 1250 shift-cam is much better than any 1200 boxer air or watercooled.So much TORQUE and much smoother mechanically... All it needs is another 25 hp on top and it is the perfect motorcycle engine...
But 1200 or 1250 it not even a contest how much smoother and stronger 1250 is...
Faster in roll-on than a 1260MS or 1290 KTM where the old 1200,especially EU-4 sucked only exhaust fumes....
I hope the EU will be history soon and we go back to EU-3 where motorcycles did not did need mechanical wizardry like shift-cam to run strong to appease the sick and twisted bureaucrats and banksters out to make billion$$$ on the C02/man made climate change scheme...The climate always changed long before people lived on this planet or drove cars/motorcycles for the last 50 or so years of mass motorization...

 

[Boxerlust]

As for he dreadful EU-5 regulatons from the criminal bankster$$$ and useful idiots and killjoys in Brussels what it means for the R Nine T and 1250 boxers we'll see come 2021...Only bike I know that runs as strong as the already strong running EU-3 2015/16 S1000RR is the new S1000RR with shift-cam !
The 1250GS EU-4 with shift-cam runs much stronger than even the EU-3 R1200GS but who knows if EU-5 will spell disaster as it did when the R1200GS went to EU-4 in 2017/18.
And if the R Nine T get's a EU-5 downgrade or the axe we'll know in a couple of month since the R18 Harley boat anker is getting ready to be shipped...1800 cc and only 90 hp means 50 hp per liter...a R75/5 from 1969 had already 65 hp per liter... What a joke... And no Telelever either...I'm surprised they spared us the points,carbs and drum brakes...

 

[CPJS]

As for he dreadful EU-5 regulatons from the criminal bankster$$$ and useful idiots and killjoys in Brussels what it means for the R Nine T and 1250 boxers we'll see come 2021...Only bike I know that runs as strong as the already strong running EU-3 2015/16 S1000RR is the new S1000RR with shift-cam !
The 1250GS EU-4 with shift-cam runs much stronger than even the EU-3 R1200GS but who knows if EU-5 will spell disaster as it did when the R1200GS went to EU-4 in 2017/18.
And if the R Nine T get's a EU-5 downgrade or the axe we'll know in a couple of month since the R18 Harley boat anker is getting ready to be shipped...1800 cc and only 90 hp means 50 hp per liter...a R75/5 from 1969 had already 65 hp per liter... What a joke... And no Telelever either...I'm surprised they spared us the points,carbs and drum brakes...

The Triumph Rocket3 only makes about 55bhp per Litre, would you like to put your 1250 against it in a top gear roll-on?

 

[Boxerlust]

The 1250GS will eat the Rocket 3 alive...if I remember right it was 3 seconds faster roll-on 60-180...
The 1250GS is uses 9,9 seconds where even the "Beast" (1290 SuperDuke EU-5) needs 12,5 seconds !
It is shift-cam as in optimized cam profile for low / high rpm + gearing...only bikes faster than 1250 GS are S1000RR and 1100 V4 Ducs as also S1000R...

 

[Arsey]

17” wheels

 

[Mr Bean]

The 1250GS will eat the Rocket 3 alive...if I remember right it was 3 seconds faster roll-on 60-180...

Would be good to read that comparison. Do you have a link?

 

[Boxerlust]

You can find it under motorradonline.de....I don't have the mag handy but roll-on on the Rocket was nothing to write home about...These "torquey" Harleys are dreadfully slow...The 1250GS only looses to heavy artillery like S1000RR,1100V4,S1000R and H2R in that order ! High praise indeed...

 

[Mr Bean]

You can find it under motorradonline.de....I don't have the mag handy but roll-on on the Rocket was nothing to write home about.

Done a search and can't find a comparison report between the two.

It would be great for a link, please.

 

[midnitemo]

Had a 2009 GS/A for 8 years from new , a brief spell with a DCT Africa Twin and now i've just got a shiftcam RS.....some motor in the new bike , i missed out the jump to liquid cooling but the difference between a 1200 hex and a shiftcam is light years , New bike is so smooth and Torquey , gearchange is slick , fuel consumption is a tad better too....loving it

 

[Boxerlust]

Mr Bean ; Motorrad 5/2020 Rocket 3 60-180 11.3 sec / 1250GS 9.9 sec
midnitermo ; The step / upgrade in power/torque from the aircooled to the watercooled 1200 was smaller than going from the LC 1200 to the 1250 ! The difference in power between the 2010 TC to the 2013 LC felt way smaller than going from a EU-3 (EU-4 even more so) 1200LC to a 1250...60-180 12.5 sec vs 9.9 sec... That shows how big the TORQUE difference is because the gearing is the same...Shift cam works wonders and is everything but a marketing gimmick ! 2 separate cam lobes , one for low to mid range Torque and the other for more power in the upper rpm range.

 

[Mr Bean]

Shift cam works wonders and is everything but a marketing gimmick ! 2 separate cam lobes , one for low to mid range Torque and the other for more power in the upper rpm range.

I have a 1250 and appreciate how smooth and the torque it has,. I was however surprised that the Rocket 3 was that much slower in a top gear roll on - assuming that's what it was?

 

[stanley]

Thanks Boxerlust regarding R9T EU models... Noted
My EURO 4 bike goes at least as well as my old TCs then!
Cheers


Sent from my SM-A520F using Tapatalk

 

[beemerboy9]

BMW doing all they can to keep the opposing twin.

Absolutely spot-on there - as confirmed by the head of BMW Motorrad. A "trade-mark" silhouette, like the Ducati and Guzzi V-twins, etc......

 

[fred_jb]

Shift cam works wonders and is everything but a marketing gimmick ! 2 separate cam lobes , one for low to mid range Torque and the other for more power in the upper rpm range.

Agreed, and what people ignore when they complain that the shiftcam lift and profile is only optimum at two load/rev combinations is that although that is of course correct, this also means that the amount by which it is non-optimum for any given load/rev combination can be much reduced over a single cam scenario. This is basically because the ECU has a choice of two cams at all times, so can always choose the one which is nearest to being optimum. Having this choice must reduce the total error across the entire range of load/rev combinations compared to a single cam where there is no choice.