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| kawashima |
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 kawashima World Chat Champion

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| kawashima |
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 kawashima World Chat Champion

Joined: 03 May 2005 Karma :    
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 Posted: 19:37 - 15 Dec 2012 Post subject: |
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TDM normal handle bar width is about 80cm.
The above picture
Hardy road bar HIGH type width is 66cm.
I think I will be less tired if I attach narrower handle bar but I haven't tried yet.
Do you think 80cm to 66cm change is acceptable?
have you ever changed to narrower handle bar? I want to know what it feels like.
I also want to know why TDM or DL1000/650 type bike always have wider handle bar which seems to be more tired on long touring. ____________________ own:2020 Serow 250
owned: 2012 YB125SP, 2008 TDM900, 2005 W650, 2002 LS125R, 2002 CB400SF, NS50F, C50 / Trip to UK(2009), Hokkaido touring(2013)
Last edited by kawashima on 20:11 - 15 Dec 2012; edited 1 time in total |
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| nowhere.elysium |
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 nowhere.elysium The Pork Lord

Joined: 02 Mar 2009 Karma :    
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| kawashima |
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 kawashima World Chat Champion

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 Posted: 19:51 - 15 Dec 2012 Post subject: |
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| nowhere.elysium wrote: | That's a big change. Have you experimented with just rolling the bars towards you? That can often feel like a massive change, even though it's only a few degrees difference. |
I added bar riser(+25mm up) and rolled the bar toward me,
but now the wires are tight and limit, it helped a lot compared to normal. But I want to pull more towards me. Then I need to change bars and wires, then I felt it interesting trying narrower one too.
And rolling my bars changes the bar angle a little bit strange, I felt I should change bars to try more different position. ____________________ own:2020 Serow 250
owned: 2012 YB125SP, 2008 TDM900, 2005 W650, 2002 LS125R, 2002 CB400SF, NS50F, C50 / Trip to UK(2009), Hokkaido touring(2013) |
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| nowhere.elysium |
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 nowhere.elysium The Pork Lord

Joined: 02 Mar 2009 Karma :    
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 Posted: 20:10 - 15 Dec 2012 Post subject: |
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Fair enough. I just find that I'm a little reticent to change one thing so much; I tend to work on the basis of smaller changes adding up quickly, so I'd also take a look at the footpeg position and the seat height, if I had discomfort issues; although it's your arms that are drawing you forward at the moment, the legs and lower back define the rest of your position just as much. It'd offer you some more flexibility, in that you can achieve more variation in rider position if you have more points of movement to work with.
There's also the fact that by changing the bars for ones with greater rake, you'll affect the overall handling and steering response a bit, because you're modifying the bike's geometry at that point. If you go for a peg or seat conversion, you're modifying the rider's geometry without affecting the bike itself. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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| kawashima |
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 kawashima World Chat Champion

Joined: 03 May 2005 Karma :    
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 Posted: 20:23 - 15 Dec 2012 Post subject: |
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| nowhere.elysium wrote: | Fair enough. I just find that I'm a little reticent to change one thing so much; I tend to work on the basis of smaller changes adding up quickly, so I'd also take a look at the footpeg position and the seat height, if I had discomfort issues; although it's your arms that are drawing you forward at the moment, the legs and lower back define the rest of your position just as much. It'd offer you some more flexibility, in that you can achieve more variation in rider position if you have more points of movement to work with.
There's also the fact that by changing the bars for ones with greater rake, you'll affect the overall handling and steering response a bit, because you're modifying the bike's geometry at that point. If you go for a peg or seat conversion, you're modifying the rider's geometry without affecting the bike itself. |
Thanks! Changing bars need to be carefully done! It may worsen handling and steering response. 80cm to 66cm may be too big change. I think I should search for a little bit wider than 66cm one.
I haven't tried changing pegs and seat yet. But TDM's pegs are fine for me. Seat is a little bit higher than best for me but acceptable.
If I try changing handle bars, I will keep the original bar so that I can go back any time.
Thanks for your helpful post
I'll go to bike shop on Sunday. ____________________ own:2020 Serow 250
owned: 2012 YB125SP, 2008 TDM900, 2005 W650, 2002 LS125R, 2002 CB400SF, NS50F, C50 / Trip to UK(2009), Hokkaido touring(2013)
Last edited by kawashima on 20:24 - 15 Dec 2012; edited 1 time in total |
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| barrkel |
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 barrkel World Chat Champion
Joined: 30 Jul 2012 Karma :   
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 Posted: 20:24 - 15 Dec 2012 Post subject: |
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| nowhere.elysium wrote: | There's also the fact that by changing the bars for ones with greater rake, you'll affect the overall handling and steering response a bit, because you're modifying the bike's geometry at that point. |
This isn't true. Changing the handlebars won't alter the rake, which is the angle of the steering axis of the front wheel to the vertical.
Changing where the user grips the steering axis will affect the handling a bit - it will help move the combined centre of gravity, probably higher and further back, so the bike will turn a little slower, and the rider sitting more upright will mean they have slightly less force to steer the bike suddenly (Twist of the Wrist's pivot steering, i.e. pushing against the opposite peg in order to give you extra leverage while you push on the handlebars, only really works if you're leaning over the handlebars, as otherwise pushing on the peg just lifts you out of your seat). Wind resistance will probably increase too, and the bike will be slightly more likely to wheelie.
But the dynamics of the bike on its own are not really affected by the position of the handlebars. ____________________ Bikes: S1000R, SH350; Exes: Vity 125, PS125, YBR125, ER6f, VFR800, Brutale 920, CB600F, SH300x4
Best road ever ridden: www.youtube.com/watch?v=s2MhNxUEYtQ |
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| nowhere.elysium |
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 nowhere.elysium The Pork Lord

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 Posted: 20:34 - 15 Dec 2012 Post subject: |
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I was commenting more on the rake of the bars than the forks; I know that the forks are in a fixed position, but if the point at which the rider influences the movement of the forks is moved further back and outwards, as those bars would suggest, then it requires a very different movement to steer the bike. I know that the majority of it will be done with leaning, as opposed to turning the bars, but still; it's a very different position from which to apply force to the bars, and will alter handling as such, in my experience. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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| noobRider |
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 noobRider World Chat Champion

Joined: 23 Sep 2012 Karma :   
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 Posted: 20:36 - 15 Dec 2012 Post subject: |
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Surely if the bike is that far away from your comfort level you'd be better selling it and getting one that suits you better. ____________________ Licence: Nov 2012, Bikes: Suzuki GN125, Moto Guzzi Strada 750, Triumph Sprint ST 955i x 2
AnPhonEh: I need plans, I need contingency plans also, I need back up contingency plans |
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| kawashima |
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 kawashima World Chat Champion

Joined: 03 May 2005 Karma :    
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 Posted: 20:40 - 15 Dec 2012 Post subject: |
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I could understand both barrkel and nowhere.elysium's post.
With narrower bar I can't steer quickly and I need more power to steer.
But the bike itself won't change into cruiser handling which will go straight. But also more upright position will lead to less weight on front tyre, which will affect its handling.
I still can't do pushing against the opposite peg technique properly yet I'm not good at cornering  ____________________ own:2020 Serow 250
owned: 2012 YB125SP, 2008 TDM900, 2005 W650, 2002 LS125R, 2002 CB400SF, NS50F, C50 / Trip to UK(2009), Hokkaido touring(2013) |
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| kawashima |
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 kawashima World Chat Champion

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| keggyhander |
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 keggyhander World Chat Champion

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| bikertomm |
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 bikertomm World Chat Champion

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 Posted: 22:28 - 15 Dec 2012 Post subject: |
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I think that would make a huge difference as to how the bike feels / turns!
As said, take things in small increments just incase  ____________________ 07' Honda Hornet now full powaah! My guide on performing an oil change! |
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 noobRider World Chat Champion

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| kawashima |
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 kawashima World Chat Champion

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| Joe f |
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 Joe f Derestricted Danger
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| doggone |
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 doggone World Chat Champion

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 Posted: 09:43 - 16 Dec 2012 Post subject: |
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Good choice, they look smart too
You can easily fit different shaped bars quite cheaply later. |
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| kawashima |
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 kawashima World Chat Champion

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Old Thread Alert!
The last post was made 13 years, 20 days ago. Instead of replying here, would creating a new thread be more useful? |
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