R1150gs gearbox special ratios

[Steptoe]

So does anyone know if there is a possibility of using evo and non evo gears in a gearbox build.?

Ask Mike O, he seems to know

 

[MikeO]

So does anyone know if there is a possibility of using evo and non evo gears in a gearbox build.?

No, they can't be interchanged. You'll either need all gears from an early pair (codes are G**) or from a late pair (J**).

 

[MikeO]

Ask Mike O, he seems to know

Neil, I bow to your knowledge on all matters BMW - but I have had two of these built and been talked through the work involved by the people that built them (Anton Largiader and Steve Scriminger). If you've got the parts and can split the intermediate shaft, then it's no more difficult than any other gearbox rebuild. If there is something I've missed or forgotten, please share it...

 

[Steptoe]

Neil, I bow to your knowledge on all matters BMW - but I have had two of these built and been talked through the work involved by the people that built them (Anton Largiader and Steve Scriminger). If you've got the parts and can split the intermediate shaft, then it's no more difficult than any other gearbox rebuild. If there is something I've missed or forgotten, please share it...

My earlier point was parts can't be mixed from just any old 1150 gearbox. .. Hence it's not so simple.

 

[MikeO]

My earlier point was parts can't be mixed from just any old 1150 gearbox. .. Hence it's not so simple.

 

[mikeyboy]

Mikey boy, do you have an evo RT 6th gear set please?
After much digging it appears i have an EVO adventure low first gear set,(narrow gears and teflon bushed forks) and a GAE spare gearbox which is pre EVO so the gear widths are different.The output shaft on the GAE box has snapped off but i do have the output shaft from the GAE box.I had planned to use the output shaft from the GAE to fix this enduro tranny, but the gears are different widths, so hence the question about an RT EVO top gear.
Cheers Pauly

Hi Paul,I have boxes of clusters that I got from Steve scrimm.maybe best to phone me so you can better describe what you need.
Mike 07786 340692

 

[Pauly S]

Thanks Mikey boy, ive rung you.Thanks Mike O for your help.And everybody else that chipped in.Ive got the gist of what i need now. I just need a 20 ton press. !

 

[tuftywhite]

Thanks Mikey boy, ive rung you.Thanks Mike O for your help.And everybody else that chipped in.Ive got the gist of what i need now. I just need a 20 ton press. !

Or, you just need to know a man with a 20 ton press.

 

[pharme]

Hi fellas ,I obviously can't post in for sale and wanted ,cos I'm not prepared to to talk ££££ .
I have been going through all the 6 speed stuff that I have bought and I have at least two sets of low " enduro" gears.
I think I also have a number of high top( overdrive gears)
So low 1st high 6th.
I have loads of casings and plenty of clusters.
So I can build a very small number of specials,
Does this appeal to anyone?

I'm 2 years late.
Heillo to @mikeyboy, would you still have these low 1st high 6th gear cogs combo? I have 2 trans cases with suffix JAJ (sports) looking for these gears; will they go well?

 

[davegs]

It's the gearbox that should have been a standard fit, if you ask me. The trouble is as much as I would love to have one, I can't really justify the cost.

I have managed to get around the higher gearing of the R1150GS by fitting the lower geared final drive from the R1100GS. It doesn't completely solve the problem, as you know, as Pulling away from stationary would still be easier with a lower gear that your 'Special Ratio Gearbox' offers. However, I find my 6th gear more usable with my set up, and with your Gearbox fitted, I would be back to standard with an unusable 6th gear on all but motorways.

Having said that, if my gearbox ever needed rebuilding, which it doesn't, then I would if possible choose your 'Gearbox' ratios.

Good luck
Ian

This is a brilliant mod, easy to do and reversible at any time, makes for brilliant traffic work giving th clutch a much easier lfe. I carried out this mod before doing an end to end ride of Alaska to Ushia in 2007, including of course the Dalton Highway!. Nicky’s box would be very good but being unable to source sae is why I did this,
On the American site someone said to fit a box from an 800 gs but this much too low, good for riding up the side of a house but not much else, so go with Mikky if you can but the other option works well.