|
|
20 Nov 2008
|
Registered Users
HUBB regular
|
|
Join Date: Feb 2008
Location: Stoke UK
Posts: 70
|
|
Quote:
Originally Posted by Brad XT
Hi guys, just fitted the Michelin T63s to my new XT600E and I am currently running the standard manufacturers pressure of 22psi front and 33psi rear. I have to say they are awful on tarmac, the bike feels like I am riding on oil and is weaving all over the place at anything over 55mph. The bike is mechanically sound i.e. shock, wheel bearings, head bearings etc are all OK. I will experiment with tyre pressures, but does anyone have any thoughts on this issue please, as these tyres seem to come highly recommend for use on tarmac. I took off a part worn set of TCK80s which were poor on tarmac, but the T63s are even worse! I have yet to use them off road and whilst I don't envisage any problems on the dirt, I have a long way to ride on tarmac to get to the desert!
Any help, clues or observations as to the possible problem would be much appreciated. Many thanks.
Cheers.
|
Hey Brad, I may be quite a bit lighter than you - 10.5 stone - and on standard pressures they are good for me up to about 70. I can't recall Yamaha's advice on how hard to go with the pressures, but it's quite a jump. (Their idea of high speed riding is over 60 I reckon). Go with Michelin's advice in any case. They are just guidelines too, if you're, erm, a bit on the large side, you may have to go up a bit?
Allways measure pressures on stone cold tyres, as air expands quite a bit as the tyres warm up. (so no riding to the petrol station if you want a true reading. Cold outside doesn't mean cold inside either!).
I wouldn't want to go much over 70 on them, but I'm close to the pegs pretty regular.
|
22 Nov 2008
|
Registered Users
Veteran HUBBer
|
|
Join Date: Apr 2002
Location: bizovac, croatia
Posts: 240
|
|
Quote:
Originally Posted by Brad XT
Hi guys, just fitted the Michelin T63s to my new XT600E and I am currently running the standard manufacturers pressure of 22psi front and 33psi rear. I have to say they are awful on tarmac, the bike feels like I am riding on oil and is weaving all over the place at anything over 55mph. The bike is mechanically sound i.e. shock, wheel bearings, head bearings etc are all OK. I will experiment with tyre pressures, but does anyone have any thoughts on this issue please, as these tyres seem to come highly recommend for use on tarmac. I took off a part worn set of TCK80s which were poor on tarmac, but the T63s are even worse! I have yet to use them off road and whilst I don't envisage any problems on the dirt, I have a long way to ride on tarmac to get to the desert!
Any help, clues or observations as to the possible problem would be much appreciated. Many thanks.
Cheers.
|
T63 awful on Tarmac? Well, after 6-7 pairs I can say that T63 are very, very good on
tarmac. Front 1.6-1.8 bar, rear 1.7-2.0 bar. If go on very soft terrains, slightly lower
pressures. Feelings you have now are usual, you will get used on T63 in time.
__________________
AnteK
|
22 Nov 2008
|
Registered Users
HUBB regular
|
|
Join Date: Feb 2008
Location: Stoke UK
Posts: 70
|
|
Quote:
Originally Posted by AnteK
T63 awful on Tarmac? Well, after 6-7 pairs I can say that T63 are very, very good on
tarmac. Front 1.6-1.8 bar, rear 1.7-2.0 bar. If go on very soft terrains, slightly lower
pressures. Feelings you have now are usual, you will get used on T63 in time.
|
Yeah, knobblies don't feel like road tyres, like a trail bike doesn't feel like a road bike, so maybe it's a confidence thing? ("Feels like I'm riding on oil"??)
You'll find the grip is definately there - just keep lapping a quiet roundabout faster and faster, keep a foot out if you need to, but the angle of dangle will impress you. Personaly, I've bottled it before sliding. (I guess I'm at the age were the number of years has become greater than the number of degrees I'll lean to!)
I've found myself going into wet roundabouts or bends a bit hot, and putting a foot out in preperation for the slide, only to find I get through just fine. And that includes riding past road bikes.
Are you sure that the suspension / bushes etc are all OK?
|
24 Nov 2008
|
Contributing Member
HUBB regular
|
|
Join Date: Mar 2006
Location: U.K.
Posts: 51
|
|
XT600E Tyres - Recommendations??
Many thanks AngusTo You and Antek for your further contributions. To cover the points you have mentioned guys, I am a "trim" 12.5 stone and I like to think it's not a "bottle problem". I am essentially talking about the effect of straight line performance on tarmac. With the TCK80s fitted the bike was happy at 80mph plus on tarmac. I work in PSI me self so up to 1.8bar is 26psi front and up to 2.0bar is 29 rear, so will try upping front tyre pressure and reducing rear pressure and see how I go. Yamaha recommendations are 1.50 bar front (22 psi) and 2.25 bar rear (33psi). Not sure what Michelin recommend but will check their website and see if I can get some info on recommended pressures. Suspension/bushes etc seem fine, but I will take the bike to my local friendly dealer and get him to give it the once over to make 100% sure. Other possible option is to get the wheels balanced if altering the tyre pressures doesn't bring about any improvement???
Thanks again guys, I am sure I will crack the problem in the end.
__________________
Brad XT
|
24 Nov 2008
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Jan 2008
Location: Bexhill, East Sussex, England, UK
Posts: 673
|
|
Michelin SIRAC's are the dogs....
I put a set of Michelin Sirac's on my 1999 (5,000 miles) XT600E at the start of last Summer. I must tell you how hugely impressed I am with them compared to Trail Wings. I would describe them as a road biased tyre but with an agricultural tyre pattern (70% road, 30% light trails). I have used them for light green laning and they were Okay. As an all round adventure type tyre you can't beat em. They look quite good on a big trailee as the rear tyre is quite agricultural looking...
__________________
Triumph Bonneville 800 (2004), Yamaha XT600E (1999), Honda XBR500 (1986).
|
25 Nov 2008
|
Registered Users
HUBB regular
|
|
Join Date: Feb 2008
Location: Stoke UK
Posts: 70
|
|
Quote:
Originally Posted by Brad XT
Other possible option is to get the wheels balanced if altering the tyre pressures doesn't bring about any improvement???
Thanks again guys, I am sure I will crack the problem in the end.
|
You can give that a go, but you would normaly get wobble rather than a weave with out of balance tyres. A weave is usualy indicative of something soft, be it tyres or suspension.
You'll probably have to take the the wheels off, but spin them, when they stop, mark the bottom and spin them again, and again, and again, and see if they stop spinning in the same position. (Heavy spot down).
Just shuffling the tyres round the rims might help.
They are on concentricaly aren't they? There should be a fitting line, all around the tyres on each side, which is high enough above the bead of the tyre to be seen by the rim. This should show an even amount above the rim all the way round, and on both sides.
Even professionals make a pigs ear of fitting some times!
|
26 Nov 2008
|
Registered Users
HUBB regular
|
|
Join Date: Dec 2007
Posts: 36
|
|
Hi Brad,
I think you might be running too high a pressure.
I suggest 20psi in the rear max and 15psi front. Just make sure you have good tyre anchors fitted fron and rear.
Try them out carefully and see how you get on. Quite often a mannual is for road biased tyres. you will want to drop them even lower when you hit the sand of the oh so wonderfull Sahara.
Good luck and enjoy your trip.
Regards Sam.
|
27 Nov 2008
|
Contributing Member
HUBB regular
|
|
Join Date: Mar 2006
Location: U.K.
Posts: 51
|
|
XT600E Tyres - Recommendations??
Hi there guys and Scottish Sam. I have checked the bike over thoroughly and all is OK other than a couple of loose spokes in the front wheel which I have tightened. Next stage was to experiment with tyre pressures, so tried 26psi front and 29 psi rear. Again terrible! Ok lets go for it! 30psi front and 36psi rear and see what happens. Wow, what a transformation! I am riding a different motorsickle! I have clearly been running far too low tyre pressures for tarmac riding, despite what seems to be the recommended pressures for T63s. I will continue experimenting with pressures to get the optimum figures for tarmac, but I ain't far out with 30/36. Then I will follow the same process of experimentation for off road using lower pressures. Never had this problem before with tyres pressures! Ain't life strange sometimes!
Cheers to all!
__________________
Brad XT
|
30 Nov 2008
|
Registered Users
HUBB regular
|
|
Join Date: Feb 2008
Location: Stoke UK
Posts: 70
|
|
Quote:
Originally Posted by Brad XT
Never had this problem before with tyres pressures! Ain't life strange sometimes!
Cheers to all!
|
Glad things are sorted out.
|
17 Dec 2008
|
Registered Users
HUBB regular
|
|
Join Date: Jan 2008
Location: Cluj Napoca, Romania
Posts: 24
|
|
I just want to add that when I switched from road tires to trail ones (Pirelli MT21) I had the same strange feeling on road, that I was riding on oil But then I got used to it and now I am pretty confident when leaning (boot touches pavement) . Grip when going offroad is excelent! However, they seem to run out pretty fast if you also ride on road (2500 km from the rear).
I think I'll try the T63 next.
Take care,
Adrian
|
Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...
2020 Edition of Chris Scott's Adventure Motorcycling Handbook.
"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)
Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers.
Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.
Ripcord travel protection is now available for ALL nationalities, and travel is covered on motorcycles of all sizes!
What others say about HU...
"This site is the BIBLE for international bike travelers." Greg, Australia
"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK
"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia
"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA
"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada
"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa
"This is the answer to all my questions." Haydn, Australia
"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany
Lots more comments here!
Diaries of a compulsive traveller
by Graham Field
Book, eBook, Audiobook
"A compelling, honest, inspiring and entertaining writing style with a built-in feel-good factor" Get them NOW from the authors' website and Amazon.com, Amazon.ca, Amazon.co.uk.
Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!
New to Horizons Unlimited?
New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!
Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80G/S.
Read more about Grant & Susan's story
Membership - help keep us going!
Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events all over the world with the help of volunteers; we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.
You don't have to be a Member to come to an HU meeting, access the website, or ask questions on the HUBB. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.
|
|
|