K1600 GT reverse gear

Only just seen this.

I'm almost certain it is an electrical drive in reverse, not an actual reverse gear. Revs to produce enough electricity.

I can't say I've ever missed reverse gear, and the only time I had ro reverse uphill (on K1200GT) I asked pillion passenger to get off and push!

I love my K1600 but have to admit the new lighter and DCT Gold Wing is starting to look appealing... lighter is a relative term only. It is still quite a lot heavier than the already heavy K1600GT

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Only just seen this.

I'm almost certain it is an electrical drive in reverse, not an actual reverse gear. Revs to produce enough electricity.

I can't say I've ever missed reverse gear, and the only time I had ro reverse uphill (on K1200GT) I asked pillion passenger to get off and push!

I love my K1600 but have to admit the new lighter and DCT Gold Wing is starting to look appealing... lighter is a relative term only. It is still quite a lot heavier than the already heavy K1600GT

.

I am sure I read that it uses the starter motor for the reverse motion :thumb2

I have not tried a new one but I really have never had an issue with the bike weight maybe I am just more of a man than you :comfort :D
 
I had a very brief go, sitting on a new bike, with the reverse gear. It's initially quite an unerving experience.

Lift the bike to upright, if it's not there already.

Raise the side stand, if it's not already up

Start the engine, if it's not already running

With the bike in neutral, push the button R on the left hand bar. R will appear in the gear position indicator screen

Push the starter button....

Nothing will happen for a moment.... Then the rev's will rise.... that is a bit unnerving at first as it sounds as if the bike is about to speed off.... and the bike will then drive - under engine power, not just on the starter motor- backards at a reasonable pace. Lift your thumb off the starter switch and the bike will stop, the engine still running. Push it again and the rev's rise again and back it goes. Repeat until happy.


The OP sounded as if he was aghast ... “wide-eyed” at the technology... at least some understand it’s electric. It is certainly NOT “engine “ driven as the OP thought ! (Twat )

Quinten and Norfolk Tiger grasp it ....
 
The bike does NOT drive rearward under engine power ;
That would be nuts ! And need involvement of the clutch ...


The starter now has “two ends” one for turning the crank in the normal way ..The additional gear on the “other “ end of the starter simply rotates a gear in the transmission.

This only works when the engine is running. The sprag clutch on the engine side will not lock up, because the engine is running faster than the starter gear.

It’s an ingenious method to us the same motor for two
purposes.
 
Similar technology is being used in VW cars where the electrics have moved to 48V from 12V.

The starter motor is now powerful enough to drive the car (forwards this time Wapping!! Do keep up !:D ) to supplement the petrol engine for extra acceleration or drive the car slowly in cities with no petrol intervention.
 
Here is a diagram of the system on the K16 .......... http://www.mcnews.com.au/wp-content/uploads/2017/07/2017-BMW-K1600-GT-Gearbox-Reverse-1024x706.jpg

Looks like what it is, a horrid bolt on device that shouts out for proper integration. Many owners, including those with the new bagger K1600B, have had problems - it's noisy when actuated, some have got stuck in reverse, some have sheared the gear wheel at the starter, some have found they can't downshift below 3rd gear. The Mothership appear to have addressed the issues, but with the bagger aimed at new conquests in the US, one would have expected better at this pricepoint.
 
Whilst I haven't tried it personally, I gather it doesn't like reversing the bike up a slope. I suspect the noise comes from over-stressing & so damaging the gears at each end of the flexi-drive - looks like a pinion & crown wheel at the starter & a worm drive to the shaft. Any undue noise & warranty will be needed.
 
Here is a diagram of the system on the K16 .......... http://www.mcnews.com.au/wp-content/uploads/2017/07/2017-BMW-K1600-GT-Gearbox-Reverse-1024x706.jpg

Looks like what it is, a horrid bolt on device that shouts out for proper integration. Many owners, including those with the new bagger K1600B, have had problems - it's noisy when actuated, some have got stuck in reverse, some have sheared the gear wheel at the starter, some have found they can't downshift below 3rd gear. The Mothership appear to have addressed the issues, but with the bagger aimed at new conquests in the US, one would have expected better at this pricepoint.

BMW do have a penchant for afterthought ideas. Surely they could have worked out from day one that a reverse gear was going to be needed. Goldwings have had them for years.
 
In fairness to Wappers (why?) I think many folk have been confused by the fact that the revs rise when the system is engaged, including a few sales staff. Presumably it's just to help the battery out with a bit of extra charging current & 14.5 volts.
 
Hi Mike , .....For getting the “wrong end of the stick “!

In his words; “the bike will drive under engine power, not on the starter motor, backwards “ :D:D

(Not grasping the simplistic fact; that the engine would need use of the clutch lever if it was to power the bike backwards .... and not thinking “if I’m pressing the starter button .. maybe the starter is the motive power for moving astern !”:blast

I think it’s fine ...when people don’t understand bikes ...
But perhaps they should refrain from pontificating on here as if they are knowledgeable!
I wouldn’t have quoted it ...but he does the same on other topics too! ......

(Incidentally Squibb, Cooperman, Wreford, LS and everyone else grasped it !):beerjug:
 
I read his report on using the reverse gear. I also read someone explaining that he'd either been misinformed or misunderstood, and him acknowledging that (IE "that makes sense").

It wasn't a case of not understanding bikes - merely of a specialist and unusual system. I read no pontificating at all (which is a refeshing change from Wapping's standard posts :p).

On what planet would an apology be necessary? :nenau
 
On what planet would an apology be necessary? :nenau

How about ?

" I wrote; Then the rev's will rise.... that is a bit unnerving at first as it sounds as if the bike is about to speed off.... and the bike will then drive - under engine power, not just on the starter motor- backards"..." I'm an old and dopey twit ...I totally misunderstood that the engine couldnt possibly have powered the bike without me operating the clutch !

Dopey in the extreme?

Mea Culpa

Wapping :blast
 
How about ?

" I wrote; Then the rev's will rise.... that is a bit unnerving at first as it sounds as if the bike is about to speed off.... and the bike will then drive - under engine power, not just on the starter motor- backards"..." I'm an old and dopey twit ...I totally misunderstood that the engine couldnt possibly have powered the bike without me operating the clutch !

Dopey in the extreme?

Mea Culpa

Wapping :blast

I still don't see where the need for an apology comes in? :confused:

Here's a picture of a motorbike:

i-rTZbnts-L.jpg
 


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