72 replies to this topic

[Mark Crowley]

Saw that JK has new natural donut that is listed as DS* Premium.

 

JKP-D1 _ 0.375"ID x 0.850"OD Natural Donut (pr) * PREMIUM *

 

Anyone know the difference from the DS? (Besides a $1).

 

Mark

[JimF]

Not sure what the diff is but I notice an interesting pricing strategery on the regular non-premium DS donut. It is $3.50 ea. or $46.66 for ten. Now there's a deal for ya.

[Cheater]

LOL... I'd bet that gets adjusted soon, now that you've pointed it out, Jim.

[Dave Crevie]

Don't know if there is a difference between the "DS" rubber from what Jerry previously sold as natural rubber.

 

I do know that it worked great for my vintage cars, plus was the only donut available anywhere with a large enough OD to use on the old mid-'60s cars.

[JK Products]

Fixing the pricing now, oops. There will still be many more mistakes I'm sure. Over 12,000 prices to try to get right.

 

The new premium donuts have a much tighter pore structure, firmer than our regular rubber, excellent grip, and a little longer life. The ISRA guys love them. 

[Eddie Fleming]

Any chance you will sell the premiums as a finished tire in the future?

[tonyp]

Tim,

 

If those are the donuts I tested, you need to get these released on rims.

[JK Products]

Yes, Tony. I can make them into tires. As you can image, with the huge assortment of tires/rims/sizes we offer it would be too difficult to make all of them.

 

What sizes would you guys like?

[Tim Neja]

I'd go with the Retro sizes – big hub, small hub, and .815" diameter – other classes with smaller diameters can cut them down!! 

[tonyp]

I second that.

[Eddie Fleming]

That sounds good.

 

Just a premium version of your 8703, 8713 tires.

[JK Products]

They'll be online shortly.

 

Remember when I said I wanted to increase communications with raceways and racers? 

 

Thanks for the input, guys. Keep it coming. 

[stemmy]

Also .765"s for wings and flexis.

[Tim Neja]

Also 765's for wings and flexis

 

Those are the ones that can be cut down from Retro sizes!

[JK Products]

Plan to come out with small hub (0.400") and 0.765" or smaller diameter. Also medium hub (0.470") and 0.820" or smaller diameters. I should have them available in a week.

 

If anyone has an emergency we could probably make the small hub tires custom for you but would have to charge more since it's not part of our normal production yet. 

[JimF]

Tighter pore structure... now that sounds like some of those tires that are unobtanium sometimes and very expensive when you can get 'em.

 

I think I'll hold off my next tire order 'til these are ready.

 

WTG, Tim.

[Mark Crowley]

Wow glad I asked. Ten pair of JKP-D1 for $28. A 20% discount. Previously my choice from the track's distributor was very limited in JK donuts. They just carried the D4 for $4.65 a pair.

 

I now have a choice of any of the JK donuts, a discount for buying 10 (which I do anyway), plus there is a new premium fish donut to try.

 

Thanks, Tim.

 

Mrk

[Frank The Tank]

The new premium donuts have a much tighter pore structure, firmer than our regular rubber, excellent grip, and a little longer life. The ISRA guys love them.

Is "premium" the same rubber as on the D14 natural?

[Jay Guard]

I wouldn't want the new DS "Retro" tires to start out at .815" diameter, that's way too small to allow any break-in or to do a light touch up on the tire truer. I would highly recommend making them available at .830".

[Eddie Fleming]

I agree, Jay.

 

The .820"s I have been getting seem to measure  about .830" or just over. That is fine by me. Nothing starting out smaller please.

[JK Products]

No, Frank, very different rubber than our D14.

 

Jay, we've got you covered. Thanks for the input.

[Mark Wampler]

The .850" OD that is listed for natural on the website is perf. On a large hub they'll be bigger. No prob. I like starting out with .830" finished and ready for practice

[Samiam]

.830" works good for me too. I use them at .820" on my Retro Stockers, then use them at .812" for CA and Coupe. Then at .790" for F1. After that they get used on Flexi cars at .750". After that my cats like to play with them. But they prefer "fish rubber."

[Mark Crowley]

Is there a rule of thumb on which id size donut is correct for a given hub size?  Such as:

 

.375" ID tire for .400" and .425" hubs.

.425" ID tire .470", .510", and .600" hubs

 

My local track owners just notified me that they are now listed on the JK website and thanked me for the info. Without Slotblog I would not have found out about JK's new direct to track sales. I want to direct the thanks I received to Cheater for Slotblog and also JK-Tim for using this valuable resource to spread the word.

 

Mrk

[Zippity]

.690" is way too large for the cars we race on our flat track.