Bleaky Posted February 9, 2020 Share Posted February 9, 2020 Hello all,Please can the collect wisdom here help me with sizing a second pair of wheels for my (new to me) Superlight R?Currently the tyres I have are Avon CR500, front 175/55 R13, rear 205/55 R13 on split rims.I want to use my 7 for autosolos and these Avons are not legal for the events because autosolos don’t allow Motorsport UK ‘List 1B’ tyres.Therefore, I’d like a second set of 13 inch dia wheels. Some tyres I have found that would be autosolo legal are:Nankang NA1 rear 205/60 R13 that will fit a 5.5-7.5 inch rim and 175/60 R13 for 4.5-6 inch width rims. I don’t know if they are any good…..What I would like to ask is where I can get some wheels that will fit and particularly what offset they need to be for my car? The current wheels don’t have any markings on them to give me a clue.I’d be happy with second hand wheels so long as they are decent condition. There are folks on eBay selling new Minilight style wheels, but I don’t know what offset to ask for.Many thanks all.Dave Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted February 9, 2020 Member Share Posted February 9, 2020 The opinions on offset aren't consistent:Search of the archives.Some Assembly Guides have -19mm for wheels up to 6" and then it varies. It's in the "Upgrading and Options" chapter.Jonathan Link to comment Share on other sites More sharing options...
Hampshire West AR Posted February 9, 2020 Share Posted February 9, 2020 DaveI see you have a Superlight R so the standard rims are 6.5" and 8.5". From the archives the fronts are +18mm and the rears +23mm. However I found this from a post in 2002. I have some SLR K&N split rims in the garage if you want any further measurements. I may even consider selling them but depends on where you are located.NickOffsets were researched when we were trying to put together the recent Ultralite Bulk purchase. Caterham and Mike Barnaby confrirmed that the 6" & 6.5" both had +18mm and the 8.5" +23mm. Now the tricky part is you can measure a dozen different wheels and get a different back depth on each. Backdepth is from the inner edge of the rim to the mounting flange and this is down to how the edge of the spun rim is finished. Also what you have to bear in mind is that as an example a 6" rim refers to the width of the tyre bead sealing faces and not the overall width of the rim which will be around 7" for a 6J wheel. Confused I hope not. Link to comment Share on other sites More sharing options...
Bleaky Posted February 9, 2020 Author Share Posted February 9, 2020 Oh gosh, it's a minefield. I need to do more reading.@Nick, thanks for the offer. I'm in Guildford, Surrey.Dave Link to comment Share on other sites More sharing options...
Wrightpayne Posted February 9, 2020 Share Posted February 9, 2020 Dave,I was told below 200hp, 6" rims and 185/60 was all you needed. Wouldn't extra width on the rear inhibit progress?I think a cheap set of 6x13" minilights would be worth looking into - I've seen them as cheap as £120 a set.When I was at Parker Racing last week checking out seats for a fellow member they had stacks of minilights outside - maybe worth a call?Ian Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 9, 2020 Share Posted February 9, 2020 Both the 8 spokes and newer Apollo's are 6" fronts and 8" rear. Link to comment Share on other sites More sharing options...
AnkerB-S Posted February 9, 2020 Share Posted February 9, 2020 I will most probably have a set of 13" Minilites currently mounted with 225/45 13 tires for sale in the near future. $400 plus shipping. Link to comment Share on other sites More sharing options...
Wrightpayne Posted February 10, 2020 Share Posted February 10, 2020 There looks to be a nice set of staggered Compomotive CXR wheels on ebay with Khumo tyres.There was a bulk buy of these a few years ago which was very popular, as these are a very light wheel. Ian Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 10, 2020 Share Posted February 10, 2020 If your looking for light wheels speak to Warren @ Revolution extremely helpful when I bought mine and we have a club discount set up with them too.I run 4 spoke Race versions 6.5" fronts, 8" rear https://revolutionwheels.com/product-category/race/4-spoke-classic-race-wheels/or Minilite stylehttps://revolutionwheels.com/product-category/rally/ Link to comment Share on other sites More sharing options...
Bleaky Posted February 10, 2020 Author Share Posted February 10, 2020 @ Ian, thanks for the tip off. Is that Team Parker Racing? @ 7 wonders, I will contact Revolution too.Many thanks indeed.Dave Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 10, 2020 Share Posted February 10, 2020 BleakyIf thats your car in the photo I can show you what they look lke as mine ally / black too - I will blatyou my mobile so you can whatsapp me. Link to comment Share on other sites More sharing options...
Bleaky Posted March 28, 2020 Author Share Posted March 28, 2020 Since I have a little more time at the moment......., I thought I’d conclude this thread with the outcome in case it helps folk in the future wishing to buy wheels.At the recommendation of Neil (7 Wonders), I went to Revolution Wheels and can highly recommend this company: Warren was superb to deal with, including being extremely knowledgeable.So, after discussion with Warren, I went with the following:Front:13 x 6.5; ET 24The full details are: 13 x 6.5 4 Spoke race ET 24 4-108/63.5 M'blk HR-Caterham, c4.3kg eachRear:13 x 7.0 ET 00The full details are: 13 x 7.0 4 Spoke race ET 00 4-108/63.5 M'blk HR-Caterham; c4.6kg eachI had to balance the width of the rear wheel with available non-list 1B (Motorsport UK) tyres- there isn’t much choice for 13 inch diameter. Warren recommended the above rim widths for the tyres I went with.Those tyres were Nankang Econex NA-1 175/60 R13 front and 205/60 R13 rear.List 1B tyres are illegal for autosolos, hence my need for others, which constrained my choice.I’m very happy indeed with the wheels. The tyres seem OK too, clearly not as grippy as the CR500 tyres on my other wheels, which are illegal for autosolo. Nevertheless, these Nankang tyres seem fine.I hope this info helps others in the future.Dave Link to comment Share on other sites More sharing options...
7 wonders of the world Posted March 28, 2020 Share Posted March 28, 2020 Link to comment Share on other sites More sharing options...
Area Representative Golf Juliet Tango Posted March 28, 2020 Area Representative Share Posted March 28, 2020 I do like the look of Revolution wheels and rather covet a set. Link to comment Share on other sites More sharing options...
Nigel B Posted March 28, 2020 Share Posted March 28, 2020 They look absolutely gorgeous! I've always been a fan of four spoke Revolutions on Caterhams & they suit the colour scheme of your car perfectly. Such a classic design! Link to comment Share on other sites More sharing options...
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