Tyre Inserts?

[FrogPrince82]

Hi All,

I was just wanting to ask the wise sages here of what inserts I will need for my Yellow Mini Spikes?

I take it the medium firmness is the best?

Also, are the standard size foams the best, or are the Schumacher "Tubby" foams worth a look? I'm guessing they help the tyre keep it's shape more with out them becoming too hard a ride (e.g. as if using firm foams). But not sure if this is a desired effect on our slippery wood flooring?

Looking at maybe putting an order in, unless the success/popularity of the 3 rolls of carpet means we will be running higher grip levels for the next few weeks!

Thanks

[AfroP]

Usual. Regular medium foams
Mini spikes still work on the carpet. But wear quicker.
Yellow mini pins and medium inserts for carpet.

[Andyp]

I generally use medium "tubbys" in all my tyres, hard to say what tyres are the best to use, both got there pros and cons, think Jeff and clarky were on spikes all night and generally they were the quickest,Chris P was on used pins from Worksop, he tried spikes but soon returned to pins, he wasn't slow, I tried both pins and spikes, setting my quickest time on spikes finding my car easier to drive on them

[FrogPrince82]

Cheers for the responces.

I've seen the closed cell type foams too. I always thought they seemed a little expensive, but do they provide any performance benefits? I've seen the tyre removal techneque using nail polish remover so may invest in some if they are reusable through this method and are beneficial.

Does anyone know how they compare to the Tubby and standard style of inserts???

[chrispattinson]

I always use Schumacher Tubby inserts. You'll get slightly more grip low speed from softer inserts, but the tyre will collapse on the carpet sweeper. I'd just stick to Medium tubbys.

A bucket of industrial strength acetone (not nailvarnish remover) is what you're after for tyre removal.
Cut the tyre, remove insert (you dont want the insert in the acetone as it ruins the insert, then plonk the wheel & tyre in a sealed bucket with 3 cm of acetone in the bottom. The vapours wil loosen the glue.
you can get the acetone here:
http://www.ecfibreglasssupplies.co.u...0-acetone.aspx
I can pick some up for you if you want, (they sell the sealed buckets aswell) as its near my house.

I used minipins on Sunday, but I think mini spikes would be easier to drive. My car was very 'tippy', often on 2 wheels, and quite difficult to drive. You can see on the video from the A final how often my car is on 2 wheels

I tried new mini spikes, for one lap, but they wouldn't have been any good until they'd been used for 5 minutes to wear them in, and I didn't have that run in time, so I went back to minipins.

[FrogPrince82]

Thanks Chris.

As the mini pins are grippier on carpet, and guessing that this because of the smaller pins biting into the carpet rather than them flexing to generate grip like mini spikes, would they be better with a firm insert to help them keep their shape and stop them creating excessive grip from flexing?

[Steven Forster]

A bucket of industrial strength acetone (not nailvarnish remover) is what you're after for tyre removal.
Cut the tyre, remove insert (you dont want the insert in the acetone as it ruins the insert, then plonk the wheel & tyre in a sealed bucket with 3 cm of acetone in the bottom. The vapours wil loosen the glue.
you can get the acetone here:
http://www.ecfibreglasssupplies.co.u...0-acetone.aspx
I can pick some up for you if you want, (they sell the sealed buckets aswell) as its near my house.

Alright chris could you get me some acetone if you dont mind please ???

How much would you recommend also ???

Cheers