GunshipDriver

It looks like a lot of owners run a larger rear diameter tire than the front. I understand that it comes that way "from the factory" for the WCM and also the Caterhams. Currently thinking: Front: 215 45 17 (24.5" diameter) Rear: 245 45 17 (26.0" diameter) Should I consider the 245 40 17 (24.7" diameter) instead which gets the diameter of the rear closer to that of the front?

Thanks, I will try those "kics"

Was doing some research on the matter and was reading online that the Caterham CSR uses: Tires: Avon CR500's, 195/45 R15 front, 245/40 R15 rear and that those tires are supposedly a tread wear rating of 20... Gonna pull the trigger on some wheels tonight and tires tomorrow... will post pics and info later.

I appreciate every ones patience with me. I will pony up the extra money and do it right as you all are helping me to do. I am thinking Toyo r1rs.

Greetings again. So I have a new to me WCM Ultralite. I've heard that I should run a softer compound than 200 tread wear. Has anyone run anything at 200 or harder with positive results? I am considering Michelin Pilot Super Sports or Bridgestone Potenza S04 Pole Position which are harder than 200 but available through Costco for me at a reasonable price. They both get good reviews but I do not know if they would work for a vehicle as light as a 7 clone. I plan on driving the car in sunny warm California weather only.

Looking at wheel options and found some that are et45 in front vice et35 which would mean about a 10mm spacer, not hub centric. Any one else run spacers?

Now that I've seen the light and will run staggered width wheels front and back, I'm trying to figure out all options for wheels with bolt patterns and offsets that might work. Running 18"wheels gives me more options.

Talked with the P.O. I have 550F and 350R springs. May look into softer springs down the road but want to get new wheels and tires first for a few different reasons--ground clearance, fender well gap, and grip being among them. I am now considering the following wheels 17x8 ET35 and 17x9 ET42

These are the wheels I am considering... Front http://www.ebay.com/itm/1-New-17X8-35-Offset-5x100-5x114-3-DRAG-DR-31-Bronze-Wheel-Rim-/191106219782?pt=Motors_Car_Truck_Wheels&hash=item2c7ed17f06&vxp=mtr Back http://www.ebay.com/itm/1-New-17X9-38-Offset-5x100-5x114-3-DRAG-DR-31-Bronze-Wheel-Rim-/191106192125?pt=Motors_Car_Truck_Wheels&hash=item2c7ed112fd&vxp=mtr

Great point... This is a Sunday driver and occasional autocross/track car. Having two herniated discs in my back already I like the idea of 400F / 200R springs...

Saw Mondo's post... looks like 43 is the starting point... anyone think 38 would work?

Question... when running 17x9" in back, what would be the best offset for running 245 or 255 tires? the range I read on other posts had a range between 45-48. I'd like it as flush as possible but still functional without rubbing.

Sounds like a 9" wide in back is the way to go then... I am looking at 17" diameter wheels and from your input possibly Toyo R1Rs with a 140 wear.... So to rehash, 8" in front, 9" in back, 17" diameter 225/45/17 or 235/40/17 in front 255/40/17 in back

I bought this one here: http://www.racepa.com/community/index.php?topic=10131.0 The gentleman had owned it about 7 years or so.

I'm in Temecula, CA between San Diego and Riverside.

Thanks for the input. After reading all the input I will go with 8" wide wheels in front... as for the back I'd like to run a 255 wide tire on either a 9" or 10" wide wheel. As for my current set up.. I have 205/50/15 in front and 225/50/15 in back. I'd like to get more grip as the back end gets loose a bit too easy... likely aided by the LSD in back. On the horizon I am looking at wider and slightly stickier (like a 200 treadwear unless you all recommend something softer-I live in California with mostly sunny skies) tires and some bigger wheels to fill up the wheel wells and get the oil pan a bit higher off the ground.

Greetings, I've read many of the old posts with recommended wheel sizes and offsets. I am looking to get a set of street wheels and would be interested in getting ideally 17x9" wheels front and back with the same offset and 255 tires so that I could rotate tires more easily. Not sure if I would need to run a spacer or adapter to make that work. I would consider running a 8.0-8.75" wide wheel instead if that made more sense. In fact, I would love 15" diameter wheels but don't think I would find enough tire choices and would prefer a larger overall diameter tire size in the end. Anyone run a square set-up and am I crazy for thinking this? As much as I have the idea that I want 9" wide wheels, the WCM is considerably lighter that all other vehicles I've had and ran 9" wheels on.