Black Hole

i hate car ads without pricing. What is the seller afraid of or games they are trying to play?

This sets a new standard for marketing. One head on shot, I can't even tell if it has an Al or painted body. No specs. No price. Maybe they don't want to sell it?

If you can't go to Spa, watch some footage of the 1955 Grand Prix. 9 mile lap. 120 mph avg speed. No safety for drivers or spectators.

Some judicious tugging on the cycle stay arms and a bit of mallet work allowed the fender to clear the tire. Best news was it was 50 degrees in CT today and I was able to self isolate and do a test drive to verify it did not rub. The tires felt more responsive than the CR500, but that may just be a placebo effect as I have not driven the car since around October. Not often inside a 7 is the safest place to be :rofl:

Are you around next Saturday. I assume you are working Sunday.

Did you get it installed? Yes I would like to try it out

I put some spacers in and alignment does become an issue pretty quickly, I could get the bolts in by flexing the wing, but it essentially straightened out the wing between the stays drawing it closer to the tire. The spacers helped but I still have essentially zero gap (you can't really measure with a feeler gauge between the wing and tire as the tire is not rigid). As Croc noted, with distortion I expect it will rub. Likely headed towards the bighead route as moving the wing outboard should fix the problem. And then I won't have to worry about the long bolts (though they had a large amount of clearance to the old tires, the new tires are listed by Avon as nominally 1.39" larger in diameter and that eats up the margin for error!)

Thanks, I will likely try that. There may be a bolt alignment issue with the stays as the wing moves to a "larger diameter"

Thankfully my web search only found the company and no collateral damage Perfect, I was perusing the options and needed this info Off to eBay to see what I can find as there does not seem to be anyone retailing them in the US

Good to know on the cold temps. The P Zero I had were abysmal in cold weather. Have not really tested my Micheline 4S at a cold temp. Thanks for the reminder on big heads. I had thought of the zip tie / bonding solution before and that may be the best solution. Amazon has the adhesive, is there a US supplier for the fasteners?

I got my ZZS and had them mounted and as expected they do have some minor clearance issues. The good news is they do not interfere with the stay, which was one concern based on their larger size and minimal clearance, but they do rub (lightly) on one fender The tire tech said they were a real bitch to get on the rims. [ATTACH=CONFIG]16660[/ATTACH] [ATTACH=CONFIG]16661[/ATTACH] So the question is what is the best tactic to solve this problem. I can try and bend the wing stay (cold or heated), I did a test try a while ago and it seems pretty stiff. I could move the wing to outboard as it is not centered and I think that would work. i would have to deal with the holes in the fiberglass. The final solution would be to buy the new stays as they note on the Caterham Parts website that they are for ZZS/R tires. I suspect I would have a hole alignment issue with the wing holes so I would probably be just as easy to move the wing on the existing stay. Its unusually warm (a nice balmy 44 deg F at the moment) in the NE so I will probably try the cold bend and if that works I exercise the car. I assume these tires have minimal grip at these temperatures!

I was able to get a rear caliper from Rocky Mountain Caterham. They had them in stock. I had to replace mine as it was leaking, but not from the piston but from the plunger that is actuated by the hand brake so if you can’t seem to find the leak check there.

The ZZS are larger diameter so I may need to do it for tire clearance. I don’t trailer my car so I don’t have the strap issue. Instead I got to drive 250 miles home from NJMP with dodgy brakes.

Hopefully I will have the same experience. I will likely order them in the next week or two from Roger Krause. I will get them to fit somehow, just a matter of bolt on or have to make some modifications.

Thank, I know they move with the tire and that is why the clearance with the CR500 is tight but not an issue. The wild card is when I go to the larger tire I may run out of clearance

My CR500 tires are aged out and I need to replace them on my 7 SV. My car has 195/45-15 CR500 and the ZZS that has superseded them is available in a 195/50-15. My issue is clearance. I knew one of my cycle wings is very close to the tire (about 4mm) but when I was looking at the options to fix that I noticed my cycle wing stay is also very close to the tire. The wing I could shim but the stay is a trickier issue. Out of curiosity I looked at Caterham parts and note that they list certain stays as being for use with the ZZS/ZZR tires. So they must have made a slight change to account for the wheel diameter change (from 21.69 to 23.08 per Avon website). Has anyone made the switch between the tires and did you have clearance issues? I did a feeble attempt to flex the stay with the cycle wing still on to see if it would bend but it seemed fairly stiff. If that does not work I would likely heat it and try to bend it and I could buy new stays if i bugger them up as they are not too expensive.

I’ll need more options if you will be a tight fit! Fortunately I have an SV. did you get your car out when it hit 60? I was in VT skiing so I missed the opportunity

to clarify, I can use my existing Caterham runners with modification and the TB1 is required to attach to the runners?

Once again, thank you for the great info. No wonder why I was so confused when I looked at the Tillett website!

yes, I would like to try a test fitting. I can use a wider seat in my car if yours are tight. Which model did you get?

is that fitted in an SV? Which Tillett is ideal for an SV. The one downside I have with the SV is the standard seats don’t hold me in position and I am not a nice press fit like I am in an S?

I got mine from Rocky Mountain Caterham. They had them in stock and their service is excellent..

This car is located right near me and I see they have some other interesting cars for sale. I believe they are located in one of the buildings of a historic 1800s axe factory which may be interesting. So if someone wanted an in person look I could make a visit.

The USA7s event is held in New Jersey and they do not allow a four point system. Either the factory three point or you need to go with the sub straps, hence why I have them. I don't know how common it is for states / tracks to not allow the four point. I use the snap in connectors for the sub belts so they can be removed or just left on the floor. I have a SV chassis so I have plenty of room to get at the belts with the seats in.

You may want to consider the Schroth Profi II ASM that I have in my car. It is FIA certified and they are designed to be used as both a four or six point system. That way you can use it as a four point system on the road and six point when required on the track. Downside is they are pricey. https://www.schrothracing.com/products/profi