Michelin Activ Size

Discuss all things 1970 & later Airheads right here
Post Reply
hudson
Posts: 91
Joined: Tue Sep 14, 2010 5:08 pm

Michelin Activ Size

Post by hudson » Thu Jun 01, 2017 11:25 am

I need to put some new tires on my 71 R75/5. I heard good feed back on the Michelin Activ. I am ordering online, so I just want confirmation on the correct size:

Front: (3.25 H19)100/90/19 - Michelin 100/90/19 57V
Rear: (4.00 H18)110/90/18 - Michelin 110/90/18 64H

Not sure what the 57V & 64H mean. I assume the letters are the speed rating? Any idea what those numbers are? BTW, I don't want the thinner 90/90/19 tire on the front.

thanks for the help!

User avatar
melville
Posts: 1302
Joined: Tue Aug 03, 2010 8:32 am

Re: Michelin Activ Size

Post by melville » Thu Jun 01, 2017 9:18 pm

Mine are showing just the inch sizes, not the metric.

The numbers and letters are load and speed rating IIRC. H is 130 mph, so academic for Airhead purposes. V is 150+ mph.
Call me Mel. Some years ago- never mind how long precisely- having little or no money in my purse, and nothing particular to interest me at home, I thought I would ride about a little and see the other parts of the world.

User avatar
jagarra
Posts: 725
Joined: Mon Dec 26, 2011 12:42 pm
Where are you located?: Reno, Nevada
Location: Reno, Nevada

Re: Michelin Activ Size

Post by jagarra » Thu Jun 01, 2017 9:48 pm

Those numbers in front of the letters are load rating, but I haven't figured out exactly how to convert that to actual pounds. Can't seem to find a graph explaining it. 57 and 64 seems like it represents something that is something other than 57 or 64 pounds total, maybe it's per square inch which may make more sense.
1974 R90/6 built 9/73
1994 BMW R1100RS
1964 T100SR Triumph
1986 Kawasaki Concours

User avatar
SteveD
Posts: 3938
Joined: Tue Aug 03, 2010 3:29 am
Where are you located?: Victoria, Oz
Location: Melbourne, Oz.

Re: Michelin Activ Size

Post by SteveD » Thu Jun 01, 2017 10:00 pm

Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. http://photobucket.com/R100RSsupergallery r100rs U-toobed. http://youtu.be/8jfcFO0tC_s
2006 K1200R.
Image

hudson
Posts: 91
Joined: Tue Sep 14, 2010 5:08 pm

Re: Michelin Activ Size

Post by hudson » Fri Jun 02, 2017 9:27 am

Thanks for the input!

Hudson

Post Reply

Who is online

Users browsing this forum: Yahoo [Bot] and 7 guests