Schumacher Stagger Ribs

[DCM]

How are we mounting them, I know about cutting the inner bead off the rim, but what about the tyre and do you need an insert?>

[sparrow.2]

I never cut any ribbing off the wheels. All you need to do is trim the bead on the tyre down buy about 1.5mm so it fits the wheel nicely and then glue the outer bead only, leaving the inner one unglued.
Either that or trim the outer rib off the wheel so that the tyre bead sits properly. I feel that makes the front end have a little more grip overall but feels less precise.
If you dremel the staggers they will last longer too and have a bit more grip.

Noone I know runs inserts in them.

[simoncrabb]

I had this same conversation with TomCock a few weeks ago. Mounted on narrow wheels with no insert.

And dremelled like this:

http://rclazy.com/wp-content/uploads/2010/04/P1020512-1280x960.jpg

I mounted some up recently (on Kyosho rims) and didn't have to trim the tyre at all?

[DCM]

thanks a lot, so no insert and narrow rim, trim tyre bead to suit the wheel.

Top banana

[DCM]

is there any reason behind all the dremmeling of the tyre?

[coolcars782]

What are these like to run with? Considering buying some for the next race, but thought i'll ask before i order from mk racing :thumbsup:

Carl

[simoncrabb]

is there any reason behind all the dremmeling of the tyre?

I think it's to give them more bite, without them digging in like minispikes can.

I found standard ones pushed at Tally, I went to minispikes but I think I'll try dremmelling a set just to see too.

[DCM]

seems like a lot of work though!!

[millzy]

Nah its not that much work- putting a slot in the blocks dose make them much better

[DCM]

what you use to do it, the XFactory tool??

[Chrislong]

Careful when dremmeling, I did a set and ended up with burning hot rubber sprayed up a t-shirt which wouldn't wash out, so I binned. Oh, and don't get it in your eyes.

Ive run them back to back at Belgium, and although cut tyres is marginally better. Effect on lap times is tiny, and for the bother of spending ages dremmelling, I decided to not bother and use a front wing instead.

[millzy]

hahah now now. yes i used my Fav set up tool, i have tried the both + - cut into the blocks, didnt see any diffrence in the two.

[DCM]

which dremmel too do you use to make the cuts?

[sparrow.2]

A thin cutting disc. And hold the dremel so it's spinning away from you or you'll get covered in tyre gunk.

It smells great too :thumbsup:

[elvo]

Metal Diamond disk is best. Stone disk works but tends to spray liquid rubber everywhere.

[millzy]

I used a thin metal disk, and did 2 passes on the cuts

[MRD]

I ran staggers for the first time on Sunday at Bury and they seemed good even with foams in (Read this post a few days too late) and without cuts, I just found the car pushed a little. Is it worth taking the foams out an risk knacking the tyre or just put cuts in and hope they arn't worse?

I mounted them on a cut down JConcepts wheels and they fitted great :)

[Matt-h]

i managed to fit them to standard B4 proline rims with a mr O soft insert.

Just a bit of huffing and puffing for 10mins.

Have i done this wrong?

matt

[mikeyscott]

When I got a set ready at Petit RC people said I should do them without foams. Too late as mine are on B4 rims with foams and will go on the SV when it arrives. I'll get them off if they are rubbish and do them again.

Just need to look into this cutting of the wheel to suit the slim staggered rib

[MRD]

I used a tyre truer and a hacksaw to cut down the rim nice and neat :thumbsup:

[super__dan]

A pair of lexan scissors does a pretty good job too, and take about 10 seconds a rim ;)

[tjf]

Can they be used on grass?

[janus_77]

Cutting:

Only one cut-off wheel will do: the Dremel 545

http://mdm.boschwebservices.com/MDMCache/English%20[US]/t06/0000000/r00115v1.jpg

then start cutting until it looks somewhat like this:

http://lh6.ggpht.com/_6J6Viu0M2HQ/S8y2aEd1KFI/AAAAAAAALyw/cmPgLhw8SwI/s512/_MG_9796.jpg

the x-cut on the inside is not for everyone, it gives a bit more “snap” at full-lock, most drivers will be happy with the +-cut on both the in and outside.


Insert:

Not really needed, but if reaction is to slow and traction is plentiful a touring insert will do the job just nicely ( the foam ones, not preformed / molded). There nice and low-profile and can be stretched to the size of the stagger-rib.


Mounting:

For most conditions, a narrow mount is best since this gives the most traction in the low speed corners. This is done by cutting the inside edge of the wheel away and just mounting the tire in the inner edge the (now) narrow rim. Sometimes the stagger will not fit the outer bead nicely, then it’s better to cut away part of the wheel than a part of the tire. ( see upper drawing of attachment )

For high grip conditions (new astro ) with very fast flowing lines it can be nicer to mount the stagger wide ( less grip, more control ). Than cut the wheel as the lower drawing of the attachment. Now the tire is mounted like an 1/8 tire. Be careful not to stretch the tire to much, than the middle of the tire will be become hollow.
.http://lh5.ggpht.com/_6J6Viu0M2HQ/S5bKy6pfUeI/AAAAAAAALPs/iXOCKftJwsM/s512/_MG_3127.jpg

[GRIFF55]

the DREMEL MASTER speaks!!! Janus, you are the man when it comes to cutting staggers:thumbsup: (yellow wheels too!!!)

[simoncrabb]

There's a rumour that Schumacher will soon be producing cut staggered ribs...

[Chrislong]

I ran staggers on my 4wd a lot too, especially at Belgium..... even tried them on the REAR! :lol: (its wasn't bad either!)

[elvo]

I ran staggers on my 4wd a lot too, especially at Belgium..... even tried them on the REAR! :lol: (its wasn't bad either!)

They were AWESOME!

[GRIFF55]

around bends:woot:

[Big G]

am I right in thinking I need to remove all the mounting ribs on the wheel in the inner part of it and then glue the tyre straight to that?

I got a set of these when I bought my car and thought they were just tatty old things until I actually tried them and love them to bits. The previous owner had removed the inner lip to the wheel, but the brand new tyres look completely different to anything else I've seen.

Can someone clarify how much of the tyre needs removing and/or how much of the wheel needs removing/reducing.

Cheers. love you all

[/tobys]

wheel: from the inside, remove material to the first rib (sharp scissors or a dremel will do the trick)
tyre: trim the tyre beads (if required) so they are a nice fit

[Big G]

so basically just the lip you can see car side of the wheel?

[super__dan]

I wouldn't touch trimming the tyre as it has a unique way of folding back on itself, I ruine a set once trimming what I thought was the beam and cutting through it.

On the wheel I just trim the outer rib off with lexan scissors though dremmeling down the lip I've seen when racing abroad, don't know what the difference is back to back.

[simoncrabb]

Or use wheels that the bead fits in the groove - they fit perfectly in the new Cougar front wheels!

[bigred5765]

but they are to wide for the tyre to sit on them and give a good profile, yes they go on but are spread so wide they dont work right, u still need to remove the inside edge of the rim,

[Big G]

I tried them on a set of B44 front Jconcepts wheels and they seem to fit nicely without any modding. I'll try a set of skinny 2wd fronts next.

cheers for the info

[DCM]

I took a set of normal B4 front wheels, removed the inside rib to narrow the wheel, trimmed the bead so it would sit tidy on the wheel, cleaned, whacked it on and glued it, works a treat, like the grip of a slim without all that nasty snatching...

[mikeyscott]

When are Schumacher realising the slim wheels?

[c0sie]

I took a set of normal B4 front wheels, removed the inside rib to narrow the wheel, trimmed the bead so it would sit tidy on the wheel, cleaned, whacked it on and glued it, works a treat, like the grip of a slim without all that nasty snatching...

Steve did you get rid of the inner rib on the wheel?

I think ive just fecked a set of staggers up..but aint sure cos ive no idea what im doing LOL

Trimmed down the outer beading on the tyre and placed that in the outer bead of the wheel, then trimmed the inside of the wheel down to get it slim and then cut down the other side tyre bead and slipped that in the other side of the wheel. It looks gash though :(

[DCM]

I went from a wheel looking like

|__|____|__| <- inner rib

TO

|__|____|