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Old 05-04-2013, 07:00 AM   #1
zenduddhist OP
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Hacked Triumph Bonneville T-100 Rear Tire choice?

Hi all,

I have to replace the stock rear tire on my 2010 Triumph Bonneville T-100. I have a CSM Freedom Bullet sidecar mounted to it. I would appreciate any recommendations on a choice for a new rear tire. This motorcycle is for sidecar duty only. I do not remove the sidecar.

Thanks much!
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1969 Triumph Bonneville T120R
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1975 Norton Commando 850
1980 Vespa P200e
2010 Triumph T-100 w/sidecar
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Old 05-04-2013, 09:56 AM   #2
Fabone
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Stock tire is the 130/80-R17?
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Old 05-06-2013, 08:40 AM   #3
jaydmc
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No good options with out a custom wheel. I would go with a cheap tire. Cheap tires tend to have harder rubber and last longer. Even if it does not last longer, at least it was cheap.
BTW, we make new from billet triple tree's for your bike that reduce trail for lighter steering.
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Old 05-06-2013, 09:09 AM   #4
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Yes, stock tire is 130/80/17. Any recommendations on good, cheap, hard tire?
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1972 Norton Commando 750
1974 Norton Commando 850
1974 Vespa Rally 200
1975 Norton Commando 850
1980 Vespa P200e
2010 Triumph T-100 w/sidecar
2011 BMW R1200RT
2013 Honda CB1100
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Old 05-06-2013, 10:04 AM   #5
Fabone
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Shinko 705 or 700 are 2 inexpensive tires that come to mind. The 705's do pretty well.

I have the same problem tire size wise. The only other option is to lace up a different wheel, which opens another can of worms and your wallet.
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Old 05-06-2013, 02:14 PM   #6
kailuasurfer
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I think Bridgestone Potenza 175/55/17 may work but not available in the U.S. Check out this thread in the Vendor section: http://advrider.com/forums/showthread.php?t=662744
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Old 05-10-2013, 03:49 PM   #7
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I put a Shinko SR712 front and 130/90-17 rear on my Bonnie. They have about 1500 miles on them, still look new and they are really cheap.
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Old 05-11-2013, 03:07 AM   #8
RidingDonkeys
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I'm prepping to do a rear tire change to my Bonnie too. Here is my line of thinking thus far.

The stock rear tire is a 130/80 R17. I obviously want something with as flat of a profile as possible.

This tire size gets us close to the size of a compact car spare, right? So why not check it out further?

I found a tire called Continental CST. I like the tread pattern and the price.

I have found it in a 125/80/17 and a 135/90/17 here in the US.
http://simpletire.com/continental-cst17-tires

I really like the idea of the 135/90/17 because it gives me about a 1" increase in height, which my rig could use. But I haven't sold myself on this because I'm not entirely sure how these will mate up. If I recall correctly, if a car tire mounts up to a 5.5-6" rim on a car, you are going to want to mate it to a slightly more narrow rim (4.5-5") on a motorcycle. So I'm still marinating on this for the time being. I've got 6 more weeks until I'm reunited with my Triumph, so a lot of thought is going to happen between now and then.

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Old 05-11-2013, 11:13 AM   #9
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those conti cst's are listed as temporary spares, does it still work good as a bike tires? do they fit a bike rim like on my gl 1000?
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Old 05-11-2013, 11:27 AM   #10
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Originally Posted by ANKOF View Post
those conti cst's are listed as temporary spares, does it still work good as a bike tires? do they fit a bike rim like on my gl 1000?
I have no clue.

This is really kind of an experiment in my head. They are certainly load rated and speed rated high enough for a hack. I imagine they would be very structurally sound too.
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Old 05-11-2013, 12:20 PM   #11
RidingDonkeys
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I'm getting conflicting specs on the CST17. This site lists the speed rating at an M, which would put it at 130kph/81mph. I regularly run my rig at 70-75, so this is cutting it a little close.

http://www.ityre.com/en/tyres/catalo...al/size/62807/

Also, being that it is a spare, the tread depth should be lower, but still deeper than the average motorcycle tire. Nevertheless, with the speed rating, I'm not sure that this is worth investigating further.
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Old 05-11-2013, 01:37 PM   #12
ANKOF
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the speed rating like all ratings like it is normaly with a big safety margin. and the bike is much lighter than a car. Im more worried how it handles on wet roads etc.
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Old 05-11-2013, 01:37 PM   #13
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Quote:
Originally Posted by kailuasurfer View Post
I think Bridgestone Potenza 175/55/17 may work but not available in the U.S. Check out this thread in the Vendor section: http://advrider.com/forums/showthread.php?t=662744
I just measured mine - it is 6 inches wide and 3.5 inches high. I believe width is not a problem. 0.5 inch increase in height (as measured from rim to edge of tread). This will definitely fit a T-100 wheel.
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Old 05-11-2013, 01:53 PM   #14
RidingDonkeys
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Quote:
Originally Posted by kailuasurfer View Post
I just measured mine - it is 6 inches wide and 3.5 inches high. I believe width is not a problem. 0.5 inch increase in height (as measured from rim to edge of tread). This will definitely fit a T-100 wheel.
If we are comparing a stock 130/80/17 to a 175/55/17, there should be a decrease in height since the profile (sidewall height) on the Potenza is smaller.
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Old 05-11-2013, 02:06 PM   #15
kailuasurfer
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Originally Posted by RidingDonkeys View Post
If we are comparing a stock 130/80/17 to a 175/55/17, there should be a decrease in height since the profile (sidewall height) on the Potenza is smaller.
My bad eye sight - 175 is about 3.25 and 130 is about 3.5. It looks like (almost) a perfect fit.
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