Correct Size 2011 Street Glide Front Tire (Mistake in Owners Manual?)?
#11
09-25-2012, 11:11 PM
Hi, I know its a slightly older post but just picked up a pair of new OEM mag 2013 wheels to replace my 09 FLHX wheels that that are normal wire spokes. Wheels are shipping so I don't have them yet and was looking to get a new front tire - rear wheel is same size from my checks so should be OK. My 09 has a 17" front rim and the newer bikes come with an 18" rim which is what I bought.
After purchase I go to my favorite seller - J&P Cylces - and use their tire finder service. I have Metzeler ME880s now on my bike and wanted the same and they list the front Metzeler for the 18 inch wheel as 140/70-18 and not 130 as mentioned here is previous posts. I could never get my head around the metric sizes so does Metzeler do something different resulting in the different size??
Am I good to go with the Metzeler 140/70-18??
Thanks
Mike
After purchase I go to my favorite seller - J&P Cylces - and use their tire finder service. I have Metzeler ME880s now on my bike and wanted the same and they list the front Metzeler for the 18 inch wheel as 140/70-18 and not 130 as mentioned here is previous posts. I could never get my head around the metric sizes so does Metzeler do something different resulting in the different size??
Am I good to go with the Metzeler 140/70-18??
Thanks
Mike
http://www.jpcycles.com/product/216-012
and the Metzeler ME880 in the 180/65B16 rear tire
http://www.jpcycles.com/product/216-151
Last edited by Wv7o; 09-27-2012 at 11:51 PM. Reason: Corrected front tire link
#12
09-26-2012, 12:14 AM
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#13
09-26-2012, 03:55 AM
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The US Government passed a Law in 1975 to go metric, they just didn't say when! Are you saying you are not being educated in the metric system?!
Sorry, couldn't help it. Converter here. Tyres have been metric in part for around 40 years, meaning the stupid things have inch diameters and metric widths.
#14
09-26-2012, 11:33 AM
But this...:
Section Width
Following the letter(s) that identify the type of vehicle and/or type of service for which the tire was designed, the three-digit numeric portion identifies the tire's "Section Width" (cross section) in millimeters.
P225/50R16 91S
The 225 indicates this tire is 225 millimeters across from the widest point of its outer sidewall to the widest point of its inner sidewall when mounted and measured on a specified width wheel. This measurement is also referred to as the tire's section width. Because many people think of measurements in inches, the 225mm can be converted to inches by dividing the section width in millimeters by 25.4 (the number of millimeters per inch).
Sidewall Aspect RatioThe 225 indicates this tire is 225 millimeters across from the widest point of its outer sidewall to the widest point of its inner sidewall when mounted and measured on a specified width wheel. This measurement is also referred to as the tire's section width. Because many people think of measurements in inches, the 225mm can be converted to inches by dividing the section width in millimeters by 25.4 (the number of millimeters per inch).
225mm / 25.4 = 8.86"
Typically following the three digits identifying the tire's Section Width in millimeters is a two-digit number that identifies the tire's profile or aspect ratio.
P225/50R16 91S
The 50 indicates that this tire size's sidewall height (from rim to tread) is 50% of its section width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. We know that this tire size's section width is 225mm and that its section height is 50% of 225mm. By converting the 225mm to inches (225 / 25.4 = 8.86") and multiplying it by 50% (.50) we confirm that this tire size results in a tire section height of 4.43". If this tire were a P225/70R16 size, our calculation would confirm that the size would result in a section height of 6.20", approximately a 1.8-inch taller sidewall.
Even with all that I could not tell you it was a 31' tire diameter (or whatever it adds all up to)!!!The 50 indicates that this tire size's sidewall height (from rim to tread) is 50% of its section width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. We know that this tire size's section width is 225mm and that its section height is 50% of 225mm. By converting the 225mm to inches (225 / 25.4 = 8.86") and multiplying it by 50% (.50) we confirm that this tire size results in a tire section height of 4.43". If this tire were a P225/70R16 size, our calculation would confirm that the size would result in a section height of 6.20", approximately a 1.8-inch taller sidewall.
Just sayin...
Last edited by Icetek; 09-26-2012 at 11:43 AM.
#15
09-26-2012, 12:19 PM
Old post but may as well put the right sizes up for the next person.
Look at the correct line
ALL MODELS EXCEPT FLHRC FRONT 17 inch D408F 130/80B17 65H
FLFRC Front 16 inch D408F 130/90B16 67H
FLTRX, FLHX Front 18 inch D408F 13070B18 63H
ALL MODELS Rear 16 inch D407 180/65B16
Page 23 2011 owners manual
Look at the correct line
ALL MODELS EXCEPT FLHRC FRONT 17 inch D408F 130/80B17 65H
FLFRC Front 16 inch D408F 130/90B16 67H
FLTRX, FLHX Front 18 inch D408F 13070B18 63H
ALL MODELS Rear 16 inch D407 180/65B16
Page 23 2011 owners manual
Last edited by smitty901; 09-26-2012 at 12:21 PM.
#16
09-26-2012, 12:29 PM
Club Member
#17
09-26-2012, 12:49 PM
J&P lists the Metzeler ME880's in the 130/70B18 front tire
http://www.jpcycles.com/product/216-150
http://www.jpcycles.com/product/216-150
J&P lists the 140/70B18 (http://www.jpcycles.com/product/216-145) as the tire for the 18" wheel which I just bought that came from a 2013 FLHX.
Doing the math from online (and if I am doing the metric conversion right??):
130/80B17
The 80 indicates that this tire size's sidewall height (from rim to tread) is 80% of its section width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. We know that this tire size's section width is 130mm and that its section height is 80% of 130mm. By converting the 130mm to inches (130 / 25.4 = 5.12") and multiplying it by 80% (.80) we confirm that this tire size results in a tire section height of 4.1".
So an 18 inch wheel with this tire will result in a (17+(2*4.1)) 25.2 inches diamter.
For the 140/70B18
140/25.4 * .70= 3.85
So an 18 inch wheel with this tire will result in a (18+(2*3.85)) 25.70 inches
So the difference in tire diameter between the tires is 0.5"
Again if I am doing this correctly the 140/70B18 tire is just over 1/2" larger in diameter than the 130/80B18. Will I have no issues with rubbing or anything with this larger diameter tire?? I've read that you can almost fit a 21" wheel on a stock FLHX but might need to lift the fender about 1/8 inch to avoid rubbing at speed as the tire expands. But not sure what tire they are running on a 21" wheel.
(See grbrown I can do metric (I think)... I just need access to Google!!! But now my head hurts!!! LOL)
And just because I have never ever posted a 'Smiles' and my kitten has been chewing on my leg while writing this:
So I can cross 'Posting a Smiles" off my bucket list!!!
Last edited by Icetek; 09-27-2012 at 12:48 AM.
#18
09-27-2012, 11:54 PM
Icetek, id did post the wrong link I corrected the front fire link in my earlier post.
For those that may need it i have posted it hear also.
http://www.jpcycles.com/product/216-012
For those that may need it i have posted it hear also.
http://www.jpcycles.com/product/216-012
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