mikko
New Recruit
Posts: 4
|
Post by mikko on Feb 12, 2023 19:54:41 GMT
Hello,
I just bought a 1984 CB400N and it has 2.15x18 Boomerang wheels. Both tyres are 25 years old and need to be replaced. At the moment 110/90 rear and 100/90 front. I can't find any info about the correct tyre sizes, any help?
|
|
|
|
Post by buster on Feb 12, 2023 20:24:32 GMT
I think cmsnl give the correct tyre sizes for your model, you'll probably have to cross reference those sizes with modern metric equivalents, plenty of free conversion charts online.
just as an addition, theres a few fans of the later boomerang wheels on here and we'd love to see a pic or two of your bike
|
|
|
|
Post by joesoap on Feb 12, 2023 20:51:32 GMT
Hello, I just bought a 1984 CB400N and it has 2.15x18 Boomerang wheels. Both tyres are 25 years old and need to be replaced. At the moment 110/90 rear and 100/90 front. I can't find any info about the correct tyre sizes, any help? Original sizes were given as 3.60 19 on the front, 4.10 18 on rear. |
|
|
|
Post by johnfcbn44dx on Feb 12, 2023 23:41:52 GMT
I will use (am using statically) 90/90 18 front mostly, but 100/90 18 front on the 450dx (knowing that the muddy has plenty clearance as still the same one for the 19" original). I will use 110/80 x 18 on almost all M.T 2.15 rear rims.
90/90 x 18 under the red muddy (just clears enough to allow tyre growth)  And some mucking about with the metzlers still fitted......   
The load ratings are slightly lower than the original on the rear, but the imperial sizes on some brands seem a little big sometimes, to a alternative size spec perhaps. if going two up touring perhaps more scrutiny, but doubt I would be worried for what I would be doing...   |
|
mikko
New Recruit
Posts: 4
|
Post by mikko on Feb 13, 2023 15:44:39 GMT
Thanks very much, this is my first bike and the tyre size charts are very confusing...
Are there instructions somewhere on how to post photos here?
|
|
|
|
Post by buster on Feb 13, 2023 17:11:42 GMT
Thanks very much, this is my first bike and the tyre size charts are very confusing... Are there instructions somewhere on how to post photos here? forgot to say before, welcome to the forum there should be a reply at the top right of your screen, if not see if you can switch to desktop mode, it will then give you the option to add photo |
|
|
|
Post by McLellan on Feb 13, 2023 21:01:18 GMT
If on an iPhone or IPad make sure you click desk top mode first.
|
|
|
|
Post by shuttlespanker on Feb 14, 2023 19:22:15 GMT
If on an iPhone or IPad make sure you click desk top mode first. Android too |
|
mikko
New Recruit
Posts: 4
|
Post by mikko on Feb 14, 2023 19:59:15 GMT
|
|
mikko
New Recruit
Posts: 4
|
Post by mikko on Feb 14, 2023 20:00:29 GMT
Above is the bike as I bought it. It came with all the original parts and no mods to the frame. Below is where I'm at now. Basically no rust on the frame and 31000km on it. Today I got some aftermarket mirrors (a matching pair) and installed those, also replaced rhe battery with a gel battery. Next week I will have a full new set of Emgo blinkers, since the ones I got are all broken.  |
|
