Rear tire size


Information and questions on GL1800 Goldwings (2001-Present)
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dtrider
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Rear tire size

Postby dtrider » Sun Mar 08, 2015 6:20 pm



I was looking at the various online stores for tire prices, and I noticed on CruiserCustomizing.com they state:
Your front tire is a 130/70-18 and your stock rear tire a 180/60/16. You have the option of selecting a 180/70/16 for a 10% higher profile to give you more ground clearance when cornering plus it will be a bit easier to put the bike on the centerstand. It will also correct the speedo to more accurately show your exact speed rather than overstating it.

How noticible is that "higher profile" as far as handling goes? How much does it really raise the bike? I think I'm tall enough to be able to handle it, or is it really a significant difference?


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robb
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Re: Rear tire size

Postby robb » Sun Mar 08, 2015 8:09 pm

1.42" taller so height would be near 3/4" rise in rear. If 1800 reads speed from rear , at 55 mph speedo reading the bike is running 58.2 mph. If off front wheel it's not a problem.

I run a 1.75" taller tire on my GL1500 and it rides great. Engine rpm is lowered by 400.

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Re: Rear tire size

Postby bstig60 » Mon Mar 09, 2015 7:56 am

Curious? What rear tire do you run on your 1500?
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robb
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Re: Rear tire size

Postby robb » Mon Mar 09, 2015 11:28 am

Michelin Agilis 10 ply truck tire, 195/75-16

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PastoT
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Re: Rear tire size

Postby PastoT » Tue Mar 10, 2015 3:04 pm

There is a slight advantage for a 70 vice the 60, in that is does help correct the speedo error. Secondly it only raises the rear a small amount, it is important to maintain is the tire width, there is little room to play with. More critical is finding a tire with the weight rating adequate for an 1800, at 897# dry that's a heap more than most scooters and we tend to add more with cargo, passenger and trailer hitch and tongue weight. If you do load up you'll notice 1st has a little less advantage but shifting to 2d is put off just a bit longer from a dead stop. I wouldn't eye it as a mpg boost, it takes more wrist to pull away from a stop and the EFI adjusts for the variant engine load and accelerator anyway, it would be a minor change at best.
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2002 GL1800 (Illusion Red) Non-ABS, 108k miles
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Ti04
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Re: Rear tire size

Postby Ti04 » Sat Mar 28, 2015 6:11 pm

I have been using the 70 series (Avons) on my wing since 2005. I like the extra clearance, my speedo is now correct, and I "may" be getting a little longer life on the tire. I don't track the tire milage because I tend to get a little cupping with the Avons and never go to the wear marks. I put up with the cupping because of the great traction in the rain.
I think the average speedo error is about 7% and the taller tire makes mine match the GPS perfecrtly.

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gtomei
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Re: Rear tire size

Postby gtomei » Sun Mar 29, 2015 11:19 am

I have been running the larger tire now for 4 years. I have not noticed any change in how the bike looks, handles or feels when riding,
It does correct the speedometer however to exactly what the gps reads and that is why I like it. I do not have ABS brakes however and I'm not sure it would be wise to change tire size if you have ABS...unless there is some way to adjust the braking system to compensate.
I should mention too I have not noticed any change in how long the tire lasts.
I ride a Goldwing but I love all bikes.

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Re: Rear tire size

Postby WingAdmin » Mon Mar 30, 2015 11:14 am

gtomei wrote:I have been running the larger tire now for 4 years. I have not noticed any change in how the bike looks, handles or feels when riding,
It does correct the speedometer however to exactly what the gps reads and that is why I like it. I do not have ABS brakes however and I'm not sure it would be wise to change tire size if you have ABS...unless there is some way to adjust the braking system to compensate.
I should mention too I have not noticed any change in how long the tire lasts.


Tire size will not affect the operation of ABS. It is not checking the speed of one wheel against the other, it is watching individual wheels and monitoring for sudden deceleration which would indicate that that wheel has (or is in the process of) locking up.

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gtomei
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Re: Rear tire size

Postby gtomei » Mon Mar 30, 2015 10:23 pm

Good to know...Thanks for the info.


I ride a Goldwing but I love all bikes.


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