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i want to put some on that will suit the scrambler look, i want a pair that look the part as well as be able to take on road and on light gravel road.
im looking at the firestone ans military tire and i really like it, it looks as if it could have come with the 72 CL originally. i know that the 400-18 size will fit the rear as ive got that on at the moment, but the front on the CL is a 300-19.
ive got a 325-19 on the front right now, and im wondering will 400-19 on the front be pushing it too far or will it fit?
what sizes can the front rim take?
thanks guys.
EDIT: I just looked at the Dunlop K70, according to some adv riders they are great on gravel and sealed roads. plus the tread is the same pattern as the tires that came with the CL originaly!
Joined: Dec 26, 2007 Posts: 1281 Location: Scottsdale, Arizona
Posted: Fri Apr 22, 2011 6:54 am Post subject:
It'll look and handle best with the same style and size that came on the bike. But a lot of guys are after a certain look and don't care about correct sizes for the rims, as long as they're able to get the tires on and they fit between the forks and fenders. What's more important to you? If you want OEM style and sizes, I can help you.
Joined: Sep 07, 2010 Posts: 21 Location: melbourne, australia
Posted: Fri Apr 22, 2011 7:51 am Post subject:
i think im going to go with the K70's. ill be using the bike in the city to commute, but also on unsealed roads, so it needs to grip that loose gravel well, and judging by reviews it is one of the best for what im looking for. plus it is in the right size for my wheels.
Joined: Sep 07, 2010 Posts: 21 Location: melbourne, australia
Posted: Sun Apr 24, 2011 12:45 am Post subject:
Bikegeezer wrote:
No, they're actually way too wide for those skinny little rims. But if you're okay with that, so be it.
Stu
really? ive got a 325-19 on the front right now that was an original tire from the 70's, and a 400-18 on the back that came stock. the front apparently can comfortably have up to 360-19 and the back up to 420-18.
ive ridden with what i have on there now and it was more than comfortable, so im not sure where your getting your info. im going to get the K70 in 325-19 on the front and a 400-18 on the rear. that will be perfect.
met a guy today who had the same set up and said it was perfect on road and on unsealed road.
Joined: Nov 02, 2008 Posts: 1085 Location: New Zealand
Posted: Sun Apr 24, 2011 1:02 am Post subject:
One of the factors that further confuses is that while two different makers may describe their tyre as say 4.00 x 18, on the rim and inflated they can actually take up considerably different widths,and their profile can also be quite different.So the reality is that once you push out to the extreme's of tyre size that will fit there can be a good result from one brand and much less so from another.
Many years ago I did enormous distances on a GS650E with sidecar.The sidecar fitment plays havoc with the rear tyre and we were often also using the same bike as a solo mount on the same wheels. I used to squeeze the widest cheap tyres I could fit on that back rim in an effort to increase the contact patch for drive with the chair fitted and then once the bike was solo ride with some caution until I understood just how the big, and oddly worn, back tyre would behave. Some of the oversized hoops when squeezed into the rim were barely different from stock and the bike could be ridden almost normally but others of the same size in other brands were horrendous.
Joined: Aug 28, 2009 Posts: 272 Location: Central IL
Posted: Sun Apr 24, 2011 1:14 am Post subject:
Your front rim is .300 inches (7.62 mm) narrower than Dunlop's recommended minimum rim width for the 3.25-19 K70. You can call Dunlop and talk to them. They will tell you that for your personal safety, you should not use their tire in that application. Having said that, I know that a lot of people do it anyway.
Joined: Dec 26, 2007 Posts: 1281 Location: Scottsdale, Arizona
Posted: Tue Apr 26, 2011 5:09 am Post subject:
jack15 wrote:
really? ive got a 325-19 on the front right now that was an original tire from the 70's, and a 400-18 on the back that came stock. the front apparently can comfortably have up to 360-19 and the back up to 420-18.
You said your bike is a CL350K4? Those tires are neither stock nor original size. Your bike came stock with a 3.00-19 front tire and a 3.50-18 rear. Your front rim is a 1.60-19, the rear is a 1.85-18. Comfortably? Though you asked what tire sizes the rims could take, I believe you're actually asking what can be wedged between the forks and swing arm, not what will correctly fit the rims. At least lace up some wider rims to accept those tires. Though you obviously don't realize it and don't care, the tread profiles of those tires are pulled out of shape when mounted on those skinny rims, and they don't have the contact patch shape or size they were designed to provide. Yes, that is important. Where do I get my info? Mainly from 35 years in the motorcycle service industry. But you can get the same knowledge from researching information available on most tire manufacturers' websites. That beats an ill-conceived notion that looking the part and available space between the suspension components are the main concerns with tire selection. Buy whatever you like, and have a great day.
It'll look and handle best with the same style and size that came on the bike. But a lot of guys are after a certain look and don't care about correct sizes for the rims, as long as they're able to get the tires on and they fit between the forks and fenders. What's more important to you? If you want OEM style and sizes, I can help you.
Stu
I would be very interested in your input on the proper tire for my '72 Cl350K4.
Joined: Dec 26, 2007 Posts: 1281 Location: Scottsdale, Arizona
Posted: Mon Nov 14, 2011 7:57 am Post subject:
[quote="soos"]
Bikegeezer wrote:
I would be very interested in your input on the proper tire for my '72 Cl350K4.
Unfortunately, it's gotten more difficult now, and I'm not sure what tires I'll mount next. The fellow who bought all of Cheng Shin's remaining street tire stock in the US has recently run out of sizes for the CL350. They were a universal tread similar to the Dunlop K70. Guess I should have bought a spare set while I could. The problem we have is that oddball, skinny front 19" rim.
Dunlop K70
If you want purely road oriented tires with the vintage tread style, the actual K70s can still be had from Dunlop, but not in the sizes we need. Closest sizes are 3.25-19 and 4.00-18. If I decide to go that route, I'll be lacing up wider rims to accept them. Another alternative, especially if you'll be actually doing some off road riding, is to mount up vintage styled dual sport tires that fit the rims correctly. Both IRC and Shinko make them, and they look like this. Sizes available to fit the CL rims correctly are 2.75-19 and 3.50-18. They're P-rated (94 mph). I have them on a Suzuki dual sport, and they work real well on the street. But they just wouldn't look right (my opinion) on the Honda scrambler, and I don't use the bike off road. Might install them anyway to avoid the hassle of swapping rims. If I run across other possibilities, I'll let you know.
I would be very interested in your input on the proper tire for my '72 Cl350K4.
Unfortunately, it's gotten more difficult now, and I'm not sure what tires I'll mount next. The fellow who bought all of Cheng Shin's remaining street tire stock in the US has recently run out of sizes for the CL350. They were a universal tread similar to the Dunlop K70. Guess I should have bought a spare set while I could. The problem we have is that oddball, skinny front 19" rim.
Dunlop K70
If you want purely road oriented tires with the vintage tread style, the actual K70s can still be had from Dunlop, but not in the sizes we need. Closest sizes are 3.25-19 and 4.00-18. If I decide to go that route, I'll be lacing up wider rims to accept them. Another alternative, especially if you'll be actually doing some off road riding, is to mount up vintage styled dual sport tires that fit the rims correctly. Both IRC and Shinko make them, and they look like this. Sizes available to fit the CL rims correctly are 2.75-19 and 3.50-18. They're P-rated (94 mph). I have them on a Suzuki dual sport, and they work real well on the street. But they just wouldn't look right (my opinion) on the Honda scrambler, and I don't use the bike off road. Might install them anyway to avoid the hassle of swapping rims. If I run across other possibilities, I'll let you know.
Stu
IRC
What is so detrimental to putting a 3.25 on a 3.00x19 front rim and a 4.00 on a 3.50x18 rear rim?
My own research for finding a matched set of tires is narrowed down to 3 brands, IRC, Dunlop and Bridgestone. You are hesitant to use IRC for asthetic reasons. But this is the only tire that can be found in the corect tire sizes although the 2.75x19 for the front is found and listed under the rear tire chart on one tire site that I looked at. I wonder about this.
As for the Dunlop, you've covered this size difference, hence my opening question.
The third is Bridgestone. They offer a street tire in the 90/90H19 front and a 110/90H18 for the rear which equates to a 4.00x18. Which of these 3 evils would you choose?
Joined: Oct 19, 2007 Posts: 52 Location: Wisconsin
Posted: Mon Nov 14, 2011 9:14 pm Post subject:
Heidenau offers tires in the sizes you are looking for. They aren't as cheap as what the Cheng Shins were or as cheap as the current Shinkos but they are in vintage sizes and tread patterns.
Joined: Dec 26, 2007 Posts: 1281 Location: Scottsdale, Arizona
Posted: Tue Nov 15, 2011 6:03 am Post subject:
soos wrote:
What is so detrimental to putting a 3.25 on a 3.00x19 front rim and a 4.00 on a 3.50x18 rear rim?
The rims are not 3.00-19 and 3.50-18. Those are the tire sizes mounted on the rims. The rims are 1.60 front and 1.85 rear. Why do I have a feeling I'm not getting through to you?
Quote:
You are hesitant to use IRC for asthetic reasons. But this is the only tire that can be found in the corect tire sizes although the 2.75x19 for the front is found and listed under the rear tire chart on one tire site that I looked at. I wonder about this.
Check the applications for the GP-1 dual purpose tire on IRC's website, and wonder no more. http://www.irc-tire.com/mce/ Note, I said I might install them, regardless of the fact I don't like their appearance on the bike, simply because they fit the existing rims properly - tread profile will be correct. The decision for me will be between displaying the bike with period-correct tires, or actually riding it. BTW, the Heidenau tires shown above are a good alternative on your existing rims.
Quote:
As for the Dunlop, you've covered this size difference, hence my opening question.
Once again, you're confusing tire sizes with rim sizes. The rim widths acceptable for a 3.25-19 and 4.00-18 are wider than the rim widths currently on your bike. And, I said I'd lace on wider rims if I decided on the Dunlops to prevent the tread profile from being distorted. Look - you asked for information. Information like this is what I do for a living, and I thought I did a decent job of explaining it. You don't like it or don't understand it, and you seem more intent on proving me wrong than on learning anything. Sorry. I'm done.
You assume that I know and understand tire fitment. If that were true, I wouldn't have asked for your input. No I don't know that a 3.00x19 rim is a 1.60 and a rear 3.50x18 is a 1.85. I have never seen or heard about this type of designation. This means absolutely nothing to me. An explanation on the 1.60 or the 1.85 designations would have helped when you realized that I thought a 3.00 rim was a 3" rim.
I wasn't questioning your judgement about the IRC's either. I was merely point out that they were the closest to correct tire size for the CL application. My apprehension was about the front 2.75x19 tire being listed within the "Rear" tire chart on the Tires Unlimited website. Note the the last entry in the chart below.
As for my question about putting a larger tire on a rim, it was a valid one. You didn't cover the implications when you talked about the Dunlop K70's in your previous post. So I asked why. You did answer in your subsequent post about the profile distorting when you chose to chastise me and YES I am confusing tire size with rim size because I never knew there was a difference.
I don't know where you got the impression that I am more intent on proving you wrong than on learning anything. That statement couldn't be further from the truth. I asked for help. Why would I want to prove you wrong? I even asked which tire you would pick. I found the condescending tone of your post insulting. I too am done.
Last edited by soos on Tue Nov 15, 2011 8:32 pm; edited 1 time in total
Joined: Oct 19, 2007 Posts: 52 Location: Wisconsin
Posted: Tue Nov 15, 2011 6:37 pm Post subject:
If you take a really close look at your rims you should find some letters and numbers. Those will probably give you the manufacturer of the rim and the size. The rim is narrower than the tire that gets installed on it. If you put tires that are to wide or to narrow for the rim width you change the geometry of the installed tire.
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That beats an ill-conceived notion that looking the part and available space between the suspension components are the main concerns with tire selection. Buy whatever you like, and have a great day.
