Hi guys,
Just a quickie, Michelin Sirac 110/80-18 TT58R tyre, Michelin market it as a REAR tyre. Can I use it on the front of my 92 TDM 850? I know it fits the rim but will it perform very well?
Cheers
9 replies to this topic
#1
MikeyMex
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Posted 31 October 2017 - 03:14 am
DT50M '78, KH100EX '86, RD350LC (many), RD250LC '83, VF400F '83, Z200 '77, RD400 '76, LTD450 '88, R45 '80, R100RS '82, GSX750SE KATANA '84, FJ1200 '92, GPZ750A1 '84, R100CS '78, (then came 17 years in Mexico and hundreds of Chinese scooters later.... I finally get another real bike) TDM850 MK1 '91 and a KLR 650 '88 for the rough stuff.
#2
g650xtdm
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Posted 31 October 2017 - 05:16 am
I can't tell you if it will perform well, but most people reverse the tread when mounting a rear tire on the front. It is done fairly often, so I doubt there is any danger in it. Not ideal, but probably not an issue either.
#3
MikeyMex
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sticking around
- Location:Jalisco the birthplace of Tequila and Mariachi
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Posted 31 October 2017 - 08:21 am
Thanks for the opinion, I am of the same mind, reverse the tread. You're right it's not ideal but where I am (pacific coast Mexico) my selection is very limited, don't wanna go full dirt knobbly tyres, but need something to cover fairly rugged terrain sometimes.
DT50M '78, KH100EX '86, RD350LC (many), RD250LC '83, VF400F '83, Z200 '77, RD400 '76, LTD450 '88, R45 '80, R100RS '82, GSX750SE KATANA '84, FJ1200 '92, GPZ750A1 '84, R100CS '78, (then came 17 years in Mexico and hundreds of Chinese scooters later.... I finally get another real bike) TDM850 MK1 '91 and a KLR 650 '88 for the rough stuff.
#4
g650xtdm
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Posted 31 October 2017 - 11:27 pm
It looks like they make a Pirelli MT60 in a 110/80-18. The Michelin T63 looks like a knobby, but it isn't very aggressive. They make it in a rear, but I don't think it is directional. Good luck and enjoy your trip!
#5
Studley Ramrod
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Monkey Boys Monkey
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- TDM model: 1993
Posted 01 November 2017 - 10:59 am
Thanks for the opinion, I am of the same mind, reverse the tread. You're right it's not ideal but where I am (pacific coast Mexico) my selection is very limited, don't wanna go full dirt knobbly tyres, but need something to cover fairly rugged terrain sometimes.
Hi, there are a few on here who have reversed a Sirac. Try searching the All about TDM section for sirac. 
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#6
chrisr
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Posted 01 November 2017 - 08:28 pm
What’s the reason you reverse them?
The Blue One : 2004 model owned 2010-2018 much loved, much missed and now living with a man in Scotland Spain.
The Black One : 2010 Model Registered 2013 owned 2018 - present .Beowulf Cans. Renthal 755s Grip Puppies,15w fork oil,DL650 handguards ,givi engine bars ,led spotlights,gipro gear indicator, shortened dogbones, LeeHenty CSM kit and stainless bits, Topsellerie seat,MRA Xcreen,.PC III (dynoed). K&N airfilter,Fenda extenda. Lots of stainless/titanium.
#7
Bjørge
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Posted 02 November 2017 - 06:25 am
What’s the reason you reverse them?
Methinks it is about longevity 
Bjørge
#8
fixitsan
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Posted 02 November 2017 - 08:40 am
What’s the reason you reverse them?
I heard it's because when fitted as a rear tyre the tread pattern is designed to give best traction under drive. When fitted at the front the tread pattern is reversed to give best traction under braking.
Or blind summit like that
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#9
Swarf
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Posted 03 November 2017 - 03:20 pm
Carcass construction, apparently the layers overlap one way to cope with acceleration forces on a rear tyre and the other way to cope with braking forces on the front.
#10
harvey krumpet
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Posted 03 November 2017 - 08:37 pm
Carcass construction, apparently the layers overlap one way to cope with acceleration forces on a rear tyre and the other way to cope with braking forces on the front.
Concur. If you don't reverse a rear on the front the braking forces are opposite and pull the lamination joins apart.
TDM 850 Loud and unusual. CRM 250r Woo hoo! DT 230 Lanza Fiddled with.... Bloody hell, is that legal? GG Randonee AKA "I didn't think that was possible".
Also tagged with one or more of these keywords: MIchelin, sirac, tire, tyre
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