1150rt advice please

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babyrhino
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1150rt advice please

Postby babyrhino » Sun Mar 10, 2019 9:01 am

Just got my rt yesterday lovely ride home wish I bought one years ago for 1 up riding no luggage what tyre pressures would you recommend and what rear preload setting seems really stiff on the rear end at the moment

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Bav
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Re: 1150rt advice please

Postby Bav » Sun Mar 10, 2019 9:10 am

Welcome to the forum!


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1976 R100/7
2016 R1200GS

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windmill john
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Re: 1150rt advice please

Postby windmill john » Sun Mar 10, 2019 9:18 am

I don’t want to start thinking about this because my head will hurt! But the general consensus is 36F, 42R for all modern bikes. There is an article about this.

Now..... two weeks ago I bought a 700 Transalp. The ride home was superb. The ride to and from work the next day also great.
I looked in the manual and it said 29 F and B, 40 in the back two up.
I assumed that the bike would be 36 ish and 42 ish, but when I checked, they were 29 and 35... I was surprised. The reason for my surprise was that on my Airhead, when the front dropped from 36 to below 33, the front definitely felt heavier in slow speed turns.

Not a digression.... sort of, but for you 36 and 42 will give you a bench mark.
http://www.kittos.co.uk
Best roads: 623 Burgos to Santander. A back road to Metz; can't remember which!
Bumble, my 700 Transalp.
Sold my Airheads, what an idiot, but Honda is also great.
Too many bikes have come and gone, trying to be sensible now!

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Jaythro
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Re: 1150rt advice please

Postby Jaythro » Sun Mar 10, 2019 9:36 am

Windmill John

Do not use the manual (Although in your case its significantly newer than my old K100RS)

I used the manual 30F 32R and had strange handling problems, stable as a big stable thing all day on the straights and long corners "but" try to change direction and it got all weird!

By accident one day I was on Pirelli's website checking to see what they offered for a friends K1100LT Except I entered K100LT and surprise surprise there were the same tyres as mine "but" showing preferred pressures at 36 F and 42R for the MT01 and MT02

I changed the model of bike to mine on their selector and bingo it was the same I had been running the tyres too soft all this time

IN hindsight it was not terrible as the bike got new head races and shock and wheel bearings and swingarm bearings

My Lesson Learned now!! It was 32 F 36R when the R1150RT was new ( I used to PDi them ) but Bridgestone's release for the bike was 36F 42R

My advice Check the TYRE manufacturers website for recommended pressure ratings for your bike as the printed versions go out of date
"Put your Ass on a motorcycle and ride with an attitude and the "Grim Reaper" will ride in your shadow!"

Islandmagee in case you're interested?

babyrhino
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Re: 1150rt advice please

Postby babyrhino » Sun Mar 10, 2019 12:46 pm

sound advice that's what I will do

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windmill john
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Re: 1150rt advice please

Postby windmill john » Sun Mar 10, 2019 3:21 pm

Jaythro, I’ve tended to live by the 36/42 combo for a number of bikes and I don’t hang around.

But I’m greatly surprised by what I can do with the Trannie running 29/35.

The only thing I notice is physically pushing the bike around.

It surprised me when I discovered the front on 29, it should have been wallowing, like the Airhead did, but no. On my R65 I was not aware of 34 or 35, but when it hit 33 psi, I could tell.

The Trannie came with brand new Michelin Pilot Activ tyres, road tyres.... I would have fit Tourance or Anakees, but there ya go; next time.
Last edited by windmill john on Mon Mar 11, 2019 5:23 pm, edited 1 time in total.
http://www.kittos.co.uk
Best roads: 623 Burgos to Santander. A back road to Metz; can't remember which!
Bumble, my 700 Transalp.
Sold my Airheads, what an idiot, but Honda is also great.
Too many bikes have come and gone, trying to be sensible now!

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Froglodyte
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Re: 1150rt advice please

Postby Froglodyte » Mon Mar 11, 2019 5:07 pm

I run my R850R at 36/42. If I run stock pressures the handling is terrible. Feels like I have a flat.

Richard(Sande)Sanders
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Re: 1150rt advice please

Postby Richard(Sande)Sanders » Mon Mar 11, 2019 8:47 pm

I run my 1100 RT at 36/42 & have no
problems with handling.

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windmill john
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Re: 1150rt advice please

Postby windmill john » Mon Mar 11, 2019 10:07 pm

Like I said, I’ve run 36/42 on many bikes, I’m just very surprised how the Transalp front end is doing at 29.
I will say of course that at this time of year, 29 is probably stiffer than summer time.
I might whack a bit more in the front next week and see what it’s like, but today’s ride to and from work felt pretty good. There’s one 5 mile stretch across the marshes where I ride spirited and all seems great. As mentioned if I had below 33 psi on the Airhead, I’d be all over the show on bends; slight exaggeration but you get my drift.... pardon the pun!
http://www.kittos.co.uk
Best roads: 623 Burgos to Santander. A back road to Metz; can't remember which!
Bumble, my 700 Transalp.
Sold my Airheads, what an idiot, but Honda is also great.
Too many bikes have come and gone, trying to be sensible now!

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P-K
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Re: 1150rt advice please

Postby P-K » Wed Mar 13, 2019 9:55 am

The article on tyre pressures is on this link.

https://www.bmbikes.org.uk/viewtopic.php?f=37&t=15593
Phil,
'17 R9T Urban G/S : '12 R1200R
Site Administrator, Assistant Webmaster and Official Club Tweeter @BMRidersClub


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