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Discussion Starter #1 (Edited)
I've been using Shinko 705s for awhile, but have come the realization that I don't do enough dirt/gravel roads to put up with the hum and vibration. I'm thinking of putting a pretty much dedicated street tire on both ends for more spirited riding, and have come across several tire brands that offer a 120/70-19 front. So...question:

Has anyone tried this yet?

Will it fit under the stock fender?

The 120/70 calculates out to an 84 mm sidewall height; the stock 110/90 calculates out to a 99 mm sidewall height; so the tire is gonna be a bit less tall. I can't envision any really bad handling quirks this combination would create, but if anyone on here is true tire guru and has an opinion, feel free to give it.

EDIT/ADD: I'm talking a Wee here, and the front forks are raised the max in the triple clamps with a fork brace. No other mods to the suspension. And yes, I know it will make my speedo even MORE inaccurate...
 

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Stock is 110/80-19, not 110/90-90.

Firstly, this is a solved problem: there are already some excellent sporting tires available in the correct size, including the Continental Road Attack, the Bridgestone BT-023, and the Michelin Pilot Road 3.

Secondly, the DL has a 2.5" wide front rim. A 120/70-19 tire would require a 3.5" wide rim. Sure, you could stuff it on there, and it might even fit under the fender, but it would be pinched pretty far out of shape. Handling would be mighty goofy at best, and very possibly dangerous.


In sum, there's no earthly reason to dink around with tire sizes when excellent 100% pavement sporty tires are already available. Plus, the lower profile tire size you have in mind requires a much wider rim, which will goof up handling.
 

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Shinko 712 110 90 19 option

I have had a Shinko 712 110 90 19 on the front of my 09 Wee for five thousand miles and it appears it is good for another five. For my type of riding, all street, mostly two up and usually for fairly long rides, no comutting it has worked very well. A huge benefit beyond it's relatively low cost is because of it's slightly larger circumference it makes the speedometer spot on correct. The only downside I have noticed is it is closer to the fender. Sometimes a stone will get in the groves and it will rake the bottom of the fender. This has only happened a few times at slow speeds, usually in a driveway or gravel road. Never at speed. It doesn't damage the fender but the noise it makes does get your attention. Also, it would never work in the mud.
 

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Discussion Starter #4
BWR: Good points, altho I didn't realize that a 120/70 would require a full 1" wider rim width over the stock 110/80. Given that is only 10 mm difference (0.4") in width, kind'a seems like overkill.... :confused:

Having ridden sport bikes for decades, with rim sizes from 16" to 17" and tire profiles from 60-70-75, I thought the wider tire with lower profile sidewall would give me some increase in handling. I suppose what I failed to account for is the pretty large difference in rake/trail between a DS bike and sport bike.

So, having been schooled on tire/rim theory, anyone recommend a quality road tire for the Wee? I've got a friend who recently put a Mich PR3 on the front, but he's only ridden it once since and I haven't gotten his take on how he likes it.
 

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Discussion Starter #5
SVTR: Thanks for the reco. I'll take a look at the Shinko 712. I've certainly not been disappointed in my experience with the 705.
 
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