Weight of CF tires?

[holmberg]

Does anyone know how much the Hoosier CF bias-ply R60A-compound tires weigh? I'm referring to Hoosier item numbers 43130 and 43307. I've looked everywhere on the Internet and can't find it. It's not in the Hoosier catalog.

Also, how much do the Hoosier FF bias-ply R25-compound tires weigh? Item numbers 43127 and 43309.

For comparison, the American Racer CF tires (part numbers JCDNA and JCDHD) weigh 10.5 and 14.5 lbs.

[holmberg]

I emailed Hoosier. Here's what they said:

43130 – approx. 10 lbs.
43307 – approx. 18 lbs.
43127 – approx. 11 lbs.
43309 – approx. 15 lbs.

[holmberg]

So here's what the various sets weigh and cost:

American Racer bias-ply: 50 $490
Hoosier FF bias-ply: 52 $974
Hoosier CF bias-ply: 56 $656
Hoosier FF-spec radial: 68 $764

[CM/FFdriver]

What does the CF tires look like?

I'm very curious as to what they look like?

And are they taller then the Bias ply tires?

Ben

[holmberg]

I don't know, I've never seen them.

Here is the data I have on the Hoosier CF tire.

Brand	Car class	Part number	Size	Radial or bias	Notes	Tread width inches	Rim width inches	Typical rim	Weight lbs	Cost	Circum inches	Diameter inches	Difference inches	Height diff inches
Hoosier	CF	43307	22.5x7.2	bias	hard R60A	7.3	5.5	5.5	18.0	$179	71.00	22.60	0.00	0.00
Hoosier	CF	43130	20x6	bias	hard R60A	6.0	5.5 to 6.5	5.5	10.0	$149	65.00	20.69	0.00	0.00

Hoosier also has a vintage FF tire, which is a bias-ply treaded tire.

Hoosier	VFF	44170	165/580	bias	vintage treaded	6.8	5.5	5.5	17.0	$185	71.20	22.66	0.06	0.03
Hoosier	VFF	44165	135/545	bias	vintage treaded	5.4	5.5	5.5	13.0	$175	67.20	21.39	0.70	0.35

[CM/FFdriver]

Hoosier also has a vintage FF tire, which is a bias-ply treaded tire.

Hoosier	VFF	44170	165/580	bias	vintage treaded	6.8	5.5	5.5	17.0	$185	71.20	22.66	0.06	0.03
Hoosier	VFF	44165	135/545	bias	vintage treaded	5.4	5.5	5.5	13.0	$175	67.20	21.39	0.70	0.35

There you go that's what I've been looking for, Just a little taller tire

Ben

[Speedy_Farmer]

Does any one have the specs on American Racer 133, to compare them to Hoosier treaded vintage tire .

[holmberg]

Does any one have the specs on American Racer 133, to compare them to Hoosier treaded vintage tire .

Here's all my tire data, including the AR 133, the Hoosier FF, spec-FF, CF, and VFF. And a lot of others too.

I tried to paste it into the forum as a table, but it just wasn't working.

Greg

[holmberg]

There you go that's what I've been looking for, Just a little taller tire

Ben

Especially the front tire.

The vintage tire is also a lot narrower than the CF or FF tires. Plus treaded while the others are slicks. So the vintage tire is going to be much slower, of course.

[DanW]

American Racer slicks Compound 133
published dimensions from Roger Kraus Racing

Dimensions are APPROX.

Tire Size Price Tread Width Section Width Diameter Circumference Weight lbs
20.0/6.0-13S 124.00 6" 7.2 20.4 64 10.5
22.5/7.5-13S 148.00 7.5" 9.5 22.3 70 14.5

The rear tires are a cantilevered design. They grow in diameter at speed like a drag slick.
They were designed for mini-stocks running on paved ovals with a working temperature of +200F. CF cars seldom see more than 150F.

[holmberg]

Dan, that's also what I have. I got my numbers from the AR website.

[fshort]

Things have changed since the 1980's!

Regards,
James