18x4 tires for Retro and ct?

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18x4 tires for Retro and ct?

Post by jgia » Mon Nov 16, 2015 11:37 pm

Trying to get ideas of what tires are available for Urals with 18 inch wheels (18x4 with good weight ratings).

Here is the list I have so far. I have not verified these tires work. List is based on suggestions and/or specs on the manufacturer website. If you have experience with any of these tires, please comment. For the moment, the higher on the list, the more likely they have been used on a Ural. YMMV

Heidenau K28 4.00 – 18 M/C 70P TT
Metzler Block K 4.00 - 18 M/C 64P (K)
Avon Safety Mileage MKII 400-18 TT 64S - listed as 4.4 inches wide on Avon website
Duro HF308 4.00-18 TT Max load 610lbs, width 4.3 inches listed on durotire.com
Duro HF307 Trail 4.00-18 TT Max load 610lbs, width 4 inches listed on durotire.com
Kenda 270 4.00-18 6ply 69P, part #042701850B0. Don't get the 4.10-18, it is only 4 ply.
4.00-18TT Dunlop K70 Load 64S - width listed at 4.17 inches.
PIrelli MT43 - 4.00 - 18 64P TL
Shinko SR241 - 4.00-18 TT 64P - 4.25 inches wide
Continental K112 4.00-18 64H TL
IRC Battle Rally TR1 Part #T10160 4.00-18 TT 64P
IRC Trails GP-1 part#302369 4.00-18 TT 64P



I know I've edited this post numerous times. Please be patient and I appreciate any comments suggestion. This also appears to be what happens when I am bored at work.

Removed Kenda Challenger. Load rating is only 61.
Last edited by jgia on Wed Dec 16, 2015 5:23 pm, edited 12 times in total.
'09 DL650, '02 VFR800 and '15 Ural cT

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Re: 18x4 tires for Retro and ct?

Post by rebelrider » Tue Nov 17, 2015 2:13 am

I'm considering the Metzlers for my next set. I'm still running with the stock tires until they wear out.

I've seen a few other tires that meet the 4.00-18 size requirement. I don't know if they would be suitable for a Ural or not. There's also weight and speed to consider. Other folk here will know better than me.

Dunlop Vintage K70
Pirelli MT43
Shinko SR241
Kenda K270
IRC TR-11

Riding style also plays a factor. I'm on paved roads with the chair on the ground most of the time. So the flat profile of the Metzler Block K is looking good to me. But again, I've only got 8,000 km with the Ural, so I'm still a bit of a noob. :)
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Re: 18x4 tires for Retro and ct?

Post by Brian Crean » Tue Nov 17, 2015 7:49 am

Back in my Retro days, I swore by Metzler Block K's. 4.00-18. They are designed for sidecar use, with a flat tread profile for max meat on the road. The wear, and handle well. They are a bit pricy though.

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Re: 18x4 tires for Retro and ct?

Post by lwcollmann » Tue Nov 17, 2015 8:49 am

I have run a lot of different tires on my retro. I got it in 2004. I have had the best miles with Kenda challenger. They are 6 ply. They are a little over $50.00. For me I got more miles For less money than the block tires.

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Re: 18x4 tires for Retro and ct?

Post by BigJames » Tue Nov 17, 2015 12:55 pm

Only have 73K on my Retro...your's isn't even at the stage that it is running really well yet! I am slightly envious... Block K handles incredibly well, have not tried Heidenau, had clearance issues with the Kenda and Shinko. On my Retro at least, there is mighty little clearance with the stock Duro as they are a wee bit larger than 4.00 x 18, more like 4.10 X 18 and I need that .10. The Block K gives me plenty of clearance, lots better mileage than the Duro, no Kenda Krunch or black marks on my drive shaft. Check the actual size of the tire! Most 4.00 x 18 are larger than 4 inches wide, some as much as a quarter to a third inch wider. The Kenda, per Kenda's web site for a 110/90-18 (narrowest 18" rear they have) is 110MM wide - 4.33 inches, to wide for my Retro at least, but not Lowell's odd and completely believable. The joys of hand built vehicles...I bought a challenger once and it ended up on my sidecar. Lasted a long time but could not use it on the rear... So measure your current tire's actual width at the sidewall, add the clearance between the driveshaft and the tire, subtract at least .10 and that is how wide your rear tire can be. What could be easier? :foilhead:
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Re: 18x4 tires for Retro and ct?

Post by lwcollmann » Tue Nov 17, 2015 3:53 pm

After reading Big James post I went out and measured my tires. I have a ready to change block metzeler on the pusher. It measure 4 and1/8". I have a Kenda chandler on the front and sidecar wheel they measure 4and 5/16". On my retro I have 1/2" from the block tire to the drive shaft. That leaves me with 3/16" clearance for the kenda. My retro is a 2004. I think that Big James is a11 which I suppose that could make the difference. If they were USA made I would say that isn't possible. But the Urals a not.

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Re: 18x4 tires for Retro and ct?

Post by barnone » Tue Nov 17, 2015 3:58 pm

:lurker:

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Re: 18x4 tires for Retro and ct?

Post by sixbennetts » Tue Nov 17, 2015 5:08 pm

pPass me that popcorn,, Barnone!
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Re: 18x4 tires for Retro and ct?

Post by jgia » Tue Nov 17, 2015 5:19 pm

Ok, Adding Kenda Challenger to the list since someone has listed having used it on a retro.
'09 DL650, '02 VFR800 and '15 Ural cT

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Re: 18x4 tires for Retro and ct?

Post by 4Paws » Tue Nov 17, 2015 8:56 pm

At 10k replaced stock pusher with Avon Safety Mileage for my retro. Enjoyed the tire, rode everywhere in every condition, only problem was spinning the tire while in dirt going up a mountain. Seriously uphill. Excellent tire.

Purchased 3 new tires and price became more of a factor. Went with Block Ks, replaced front and tub at about 22k and pusher a month later at 24k. Excellent mileage on stock tires though I am excessively anal about tire pressure.
Like the Block Ks, no problems with traction or handling.

My MAJOR fu was to run dyna beads. Originally installed them when I first changed out the pusher ( bought pre-filled tubes from Heindl - good folks) and "thought" they made a difference. When I swapped out front and tub I used dyna beads again, disaster. Front wouldn't hold air. Tried everything. New schrader valves (plural), high pressure blasting, rain dance, nothing worked. Replaced tube. When I changed out pusher - no dyna beads.

Price difference made Metzler Block K the better choice for me, I can't swear they are better or worse and bike still handles "fine". No complaints, been running them four or five months on the usual roads and check air pressure before riding. No clearance issues. Read a lot of posts here before deciding. Big James experience was contributing factor, thank you.
Looked at 3.75 tire for rear, went with 4.0.
Small tires door com.
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Re: 18x4 tires for Retro and ct?

Post by jgia » Wed Nov 18, 2015 12:38 am

Thanks for the input Dan.

Before I started really looking today I didn't think there was any aggressive tread tires for the ct. I'll probably go with a Block K for my next pusher but I might spring for a set of HF307s to keep around for off-road trips.
'09 DL650, '02 VFR800 and '15 Ural cT

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Re: 18x4 tires for Retro and ct?

Post by BigJames » Fri Nov 20, 2015 5:24 pm

lwcollmann wrote:After reading Big James post I went out and measured my tires. I have a ready to change block metzeler on the pusher. It measure 4 and1/8". I have a Kenda chandler on the front and sidecar wheel they measure 4and 5/16". On my retro I have 1/2" from the block tire to the drive shaft. That leaves me with 3/16" clearance for the kenda. My retro is a 2004. I think that Big James is a11 which I suppose that could make the difference. If they were USA made I would say that isn't possible. But the Urals a not.
TerryG and I bought our bikes at the same dealer, same model (I have a 9 gear in the FD, Terry has an 8 gear) just weeks apart and the clearances are different! It really is the joy of hand built versus the boredom of assembly line "perfection"! 40 or so a year, that's it for Retros...now less than that since the M70 has pretty much replaced our /2 look a likes!
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Re: 18x4 tires for Retro and ct?

Post by huklbery » Mon Nov 23, 2015 6:11 pm

I run the Avon on the rear, just has a touch of clearance when new to the swing arm front (no side clearance issues though its close the the drive slide boot). On the front I have the kendra challenger and its a trifle heavier handling than the Heidenau it came with. The sidecar is still running the Heidenau at +28,000 km. I have a Metzler Block K waiting in the wings for the sidecar but that lasts forever.

When I changed the front tire out at 24,000km there was just 1/32 or so left of the front brake pads, I took that closer to the limit than I had intended.

The real issue for me was getting the heavy plastic armor strips, the pusher kept wearing through the rubber strip and duct tape. It may never be an issue for your wheels but then again it wasn't with mine till it became one. Motion Pro (11-0062) 18"-19" Armor Rim Strip Tape (amazon)
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Re: 18x4 tires for Retro and ct?

Post by jgia » Mon Nov 23, 2015 8:30 pm

Thanks for the update. Huklbery.

I checked the setup on my rig. Now I know why my pusher and sidecar tire are so worn compared to the front. Measured 3 inches of toe-in. Doh. I'll probably rotate some tires around next week. Hopefully that and the fixed toe-in/lean out will let me put off buying tires for a bit longer.
'09 DL650, '02 VFR800 and '15 Ural cT

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Re: 18x4 tires for Retro and ct?

Post by jgia » Wed Dec 16, 2015 5:24 pm

Added a couple IRC tires.
Removed Kenda Challenger as it was way under on load index.
'09 DL650, '02 VFR800 and '15 Ural cT

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