JConcepts Thread
Any update on when the 2.2 truck goosebumps will be back in stock? They have been out of stock for a couple months now.
These are about the only loose dirt truck tires on the market. I wish there was a little more selection for stadium truck on outdoor tracks.
These are about the only loose dirt truck tires on the market. I wish there was a little more selection for stadium truck on outdoor tracks.
Be cool if those sirens asnd drop steps could be offered in a dirt compound.
Jcons has the lockness and siren tires that would be a good starting point for rear tires. They don’t really have much for front 2wd spike tires. You might want to run rib tires OR look at Schumacher since they have a big line of grass/astro tires such as the mini spike, full spike and stud
Ribs up front give me a push on my track. Found that true with both 2.2 Buggy/ST and 2.2/3.0 SCT ribs. So pins, blocks or spikes up front are the go-to. Perhaps when JC weighs in they'll have a buggy front recommendation. Much prefer the narrower 2wd buggy front over the wider 4WD front.
Cheers. -AC
Thanks for the reply and recommendations, RossKo. Wish listed a pair of Siren. Amain doesn't list the lockness. Went to the JC website and found them. They look even better for my application. Both are under consideration for now. Looking like my sprinter will have to accept a low profile tire as that seems the trend now.
Ribs up front give me a push on my track. Found that true with both 2.2 Buggy/ST and 2.2/3.0 SCT ribs. So pins, blocks or spikes up front are the go-to. Perhaps when JC weighs in they'll have a buggy front recommendation. Much prefer the narrower 2wd buggy front over the wider 4WD front.
Cheers. -AC
Ribs up front give me a push on my track. Found that true with both 2.2 Buggy/ST and 2.2/3.0 SCT ribs. So pins, blocks or spikes up front are the go-to. Perhaps when JC weighs in they'll have a buggy front recommendation. Much prefer the narrower 2wd buggy front over the wider 4WD front.
Cheers. -AC
Thanks for the reply and recommendations, RossKo. Wish listed a pair of Siren. Amain doesn't list the lockness. Went to the JC website and found them. They look even better for my application. Both are under consideration for now. Looking like my sprinter will have to accept a low profile tire as that seems the trend now.
Ribs up front give me a push on my track. Found that true with both 2.2 Buggy/ST and 2.2/3.0 SCT ribs. So pins, blocks or spikes up front are the go-to. Perhaps when JC weighs in they'll have a buggy front recommendation. Much prefer the narrower 2wd buggy front over the wider 4WD front.
Cheers. -AC
Ribs up front give me a push on my track. Found that true with both 2.2 Buggy/ST and 2.2/3.0 SCT ribs. So pins, blocks or spikes up front are the go-to. Perhaps when JC weighs in they'll have a buggy front recommendation. Much prefer the narrower 2wd buggy front over the wider 4WD front.
Cheers. -AC
Any update on when the 2.2 truck goosebumps will be back in stock? They have been out of stock for a couple months now.
These are about the only loose dirt truck tires on the market. I wish there was a little more selection for stadium truck on outdoor tracks.
These are about the only loose dirt truck tires on the market. I wish there was a little more selection for stadium truck on outdoor tracks.
There was a little easter egg in this RC10T body release that might be something to watch for


Unfortunately I don't have any experience running on natural grass, but I would think the Drop Step or Siren to be a good choice in the rear. As mentioned, we don't have a full pin style slim 2wd front, so you would could go with a Swagger or Swaggoo. Or you could get a little more aggressive and use a standard width 2wd front wheel with the Siren 4wd front tire, which fits nicely 

[ Edit: And, oh yeah also on order is a JC 17T brush motor. This is a brush motor build with an ages old 19T Reedy in it now. Figure the newer 17T will add a bit to its performance.]
Last edited by AHR43; 04-18-2025 at 06:53 AM. Reason: add a sentence
Few questions on some 1/8 tires:
- When do you find you go with Relapse versus Rehab
- How often do you find that id you end the day on A2 Compound, that you start on Green or is it Blue more common
- When will the Kosmos for 1/8 be up ro actually order?
- When do you find you go with Relapse versus Rehab
- How often do you find that id you end the day on A2 Compound, that you start on Green or is it Blue more common
- When will the Kosmos for 1/8 be up ro actually order?
- That all depends on track conditions; is it cooler in the mornings, did they water at night or in the morning, etc...
- I'm assuming you are referring to the truggy Kosmos? They are in route and should be available soon. Buggy Kosmos are currently available.
Quick comment here for the JConcepts website Blog. Esp. the weekly Race Team Update. My go-to for oval track results around the country. Like the listing of JC products used too,
Keep on keepin on. Happy 4th. -AC
Keep on keepin on. Happy 4th. -AC



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