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What did you do to your bike today?

Discussion in 'Biker's Cafe' started by edd1e, May 3, 2012.

  1. Malt_Vinegar

    Underboss

    Joined: Oct 20, 2002

    Posts: 15,100

    Location: In a house

    Did a quick chain tension on the hornet, added new controls to the baby blade, just missing the new throttle.
    The generic controls I bought only had a pull throttle, so have ignored that, and bought a generic push/pull instead.
     
  2. NooBish AbbZ

    Mobster

    Joined: Mar 21, 2013

    Posts: 2,785

    Location: Fareham, Portsmouth

    Picked it up on the new PR5's, and forgive me, it felt ******* ****. Checked tyre sizes, all fine; next port of call, tyre pressures, rear(Should be 36), were 48.

    wait, 48?

    Forty-eight?

    48?!

    Needless to say i've reduced them. Having a quick snack and then heading out for a test run. Needless to say, if it fixes it I'll phone the guy who fitted them and let him know. Could easily be pretty dangerous.
     
  3. Maccapacca

    Tea

    Joined: Apr 13, 2010

    Posts: 16,691

    Location: Sunny Sussex

    Picked up the BMW r1200 GS from the mot guy. I think it needed pads plus he reckoned it hasn't been serviced.... ever in 45000 miles

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

     
  4. Munchies

    Gangster

    Joined: Oct 4, 2010

    Posts: 130

    48 is far too high, usually Michelins are inflated to 42R 36F. I run 40 / 36 on the road on the SDR which is similar in weight to your Yammy.
     
  5. NooBish AbbZ

    Mobster

    Joined: Mar 21, 2013

    Posts: 2,785

    Location: Fareham, Portsmouth

    I dropped them to the manufacturer 33F 36R and I've just been out, difference is massive as you'd expect. Felt far better though still not as flickable as it used to be, though it did seem to improve when the tyres were warm, ie slightly higher pressure. I'll give it a few days and see how I feel; I've got a decent commute to a different office tomorrow and Friday through twisties.

    What I will say, the braking potential is ******* phenomenal. I had at least 2 stoppies testing what they could manage. I'll gradually give the pressures an increase towards yours if it still feels off :)

    Can anyone suggest a decent tyre pressure gauge they use? I guess they're a much of a muchness but nevertheless want to get a decent one :)
     
    Last edited: Jun 24, 2019
  6. Diddums

    Capodecina

    Joined: Oct 24, 2012

    Posts: 18,851

    Location: London


    You bought a GS? Damn mate never realised you were that old :(
     
  7. Kreeeee

    Man of Honour

    Joined: Jul 13, 2004

    Posts: 41,893

    Location: /* */

    I run 34/38 on my MT-10, and 33/36 on lighter bikes such as the Street Triple. Getting the pressures right makes an enormous difference, but annoyingly it varies depending on the bike, tyre, roads, riding style and weight so it takes a while to figure out what works for you.

    I bump the rear up to 42 when carrying luggage or a pillion.

    I really like the draper pen-like gauges as I just leave it under the seat and I can use it if I ever adjust my tyres away from home. I also have to reduce the pressure whenever the garage changes the tyres as they never listen when I tell them what pressures I use.
     
  8. NooBish AbbZ

    Mobster

    Joined: Mar 21, 2013

    Posts: 2,785

    Location: Fareham, Portsmouth

    33 Front 36 Rear, felt better today though not perfect. Impressed with how they felt this morning in the rain; got a good amount of temperature in on the way back home :)

    Advice, it feels as if the bike isn't turning in quick enough; higher pressure or lower pressure?
     
  9. Fireskull

    Sgarrista

    Joined: Oct 31, 2006

    Posts: 9,655

    Location: Eastleigh / Winchester

    I would say you'd need to up your pressures then if you feel its affecting your turn in.

    I remember diagnosing a problem for a friend once, said the handling felt weird but the tyre pressures felt ok (They didn't have a pressure gauge) and to be fair the front tyre felt ok just pressing it, one of those cheap hard carcass tyres, first roundaobut I got to felt like I was cornerning on Jelly, got it home and it had 12psi in I think :/
     
  10. NooBish AbbZ

    Mobster

    Joined: Mar 21, 2013

    Posts: 2,785

    Location: Fareham, Portsmouth

    That matches with what Kreeeee said earlier up. I'll add a few PSI and see how it feels :)
     
  11. Maccapacca

    Tea

    Joined: Apr 13, 2010

    Posts: 16,691

    Location: Sunny Sussex

    What an absolute pos but with mot and a fresh service owes me less than a grand

    Dash looks like it's just scrolling through all the warning lights, abs has been bypassed, alternator works intermittently, screen rattles, every rubber is perished, seat need a 're foam, you have to hold the indicators on (New today?) and the Speedo and rev counter suddenly just stop working.

    Apart from that all fine :p

    [​IMG]
     
  12. Kreeeee

    Man of Honour

    Joined: Jul 13, 2004

    Posts: 41,893

    Location: /* */

    You want a steeper (and maybe a reduced radius if you have the choice) tyre profile and maybe raise the forks/drop the triple tree to change the geometry.

    Tyre pressures won't really adjust that to the levels you might be seeking, but see how 34/38 feels for you.
     
  13. NooBish AbbZ

    Mobster

    Joined: Mar 21, 2013

    Posts: 2,785

    Location: Fareham, Portsmouth

    I'm hoping tyre pressures will fix it. I'm comparing it directly to how it felt literally last week on the older tyres :)
     
  14. MowyTone

    Mobster

    Joined: May 4, 2009

    Posts: 3,366

    Location: Southampton

    Have you checked to make sure they have mounted the rear wheel straight? Could be an alignment issue
     
  15. Munchies

    Gangster

    Joined: Oct 4, 2010

    Posts: 130

    Usully old rubber has slower turn in which you notice after fitting new rubber. Are the tyres the same profile? What brand were your old tyres?
     
  16. NooBish AbbZ

    Mobster

    Joined: Mar 21, 2013

    Posts: 2,785

    Location: Fareham, Portsmouth

    Yeah tyre sizes are the same; first thing I checked. Old tyres were Dunlop’s. New are Pilot Road 5’s
     
  17. tom_e

    Man of Honour

    Joined: Dec 26, 2003

    Posts: 26,627

    Location: West mids

    Some tyres do just generally turn in differently due to different carcass shapes, the pr5s are touring tires so won't be razor sharp
     
  18. Munchies

    Gangster

    Joined: Oct 4, 2010

    Posts: 130

    That's what I was getting at, depending what Dunlops he had, they may have had a slightly racier profile. Never used Dunlops myself though.

    If it is a case of the above, as tom says the R5 is a sports touring tyre so short of adjusting geometry / suspension it's going to feel different. You can try adjusting the pressures to get a feeling you are comfortable with but you won't make massive differences. Tyres are a very personal thing on a bike, you'll learn what you like and find a tyre that suits you / your motorcycle Michelin R5's may not be for you / your riding style. Or you may learn to love them.
     
    Last edited: Jun 28, 2019
  19. Kreeeee

    Man of Honour

    Joined: Jul 13, 2004

    Posts: 41,893

    Location: /* */

    PR5 is a touring tyre so it has a slower turn in due to a shallower profile and stiffer walls than sportier rubber. That could very well be the reason you feel such a difference.
     
  20. NooBish AbbZ

    Mobster

    Joined: Mar 21, 2013

    Posts: 2,785

    Location: Fareham, Portsmouth

    All noted gentlemen :) What I will say is other than the very initial turn in, i love the tyres. So much confidence in them :)