Graham Perry Posted October 4, 2003 Share Posted October 4, 2003 The MB rims are quite soft though as the thickness is minimal. They are easy to bend if you don't treat them with respect when changing tyres on and off the rims. For normal usage though they are fine. Link to comment Share on other sites More sharing options...
RESOLVIWOLF Posted October 4, 2003 Share Posted October 4, 2003 i was presuming it was because of the 15" rims but the R400 demonstrator taht i drove, well under power the nose lifted and wandered all over the place. My old slr was never like this. If this is to do with 15" then personally i wouldnt touch them with a bargepole. Link to comment Share on other sites More sharing options...
Christian P Posted October 4, 2003 Share Posted October 4, 2003 I know this thread is about 13" wheels, but... Does anyone know of/use a lighter-weight alternative to the OEM 14" KN Minators that my Roadsport came with? I like the combination of diameter/side wall height and wheel-arch-filling capacity but of the 14" wheels but would be keen to loose some unsprung mass... Any thoughts? Ta... C7 CCL - broom broom Link to comment Share on other sites More sharing options...
OAP Posted October 5, 2003 Share Posted October 5, 2003 My R400 was delivered with 13" mag. split rims, and after 4000 miles or so I bought a set of the new 15" aluminium wheels, all with CR500's. Poise, balence, confidence all deteriorated significantly with the 15" rims, which I ran for about 1000 miles. I've just changed back to the 13" rims and it handles like a different car. No question in my mind whatsoever as to the better set up. Link to comment Share on other sites More sharing options...
Paul Bowden Posted October 5, 2003 Share Posted October 5, 2003 Neil, The Mag wheels as fitted to R500 6.5" front and 7.5" rears have different circumferences with 205 and 175's ( I think that is OE) fitted, and yes they do promote under steer. I have reverted to 6" all round. I intend to buy a set of 6.5" for the rear, so will have the same all round. This is with only 140 bhp however. Edited by - Paul Bowden on 5 Oct 2003 20:29:14 Link to comment Share on other sites More sharing options...
Graham Perry Posted October 5, 2003 Share Posted October 5, 2003 What OAP says is testament to what many have said on here over the years, and that is sevens seem to feel better on 13's. There have been a few that say otherwise, but I think the majority vote seems to favour the 13's Link to comment Share on other sites More sharing options...
Gasmaninaseven Posted October 6, 2003 Share Posted October 6, 2003 Thanks, I think I'll leave it until the next trackday season a try to get a comparative test. The quality of the engineering appeals, but a lot of money probably best spent elsewhere on improving my driving at present! Orange SUPERLIGHT R300 Link to comment Share on other sites More sharing options...
Tonycaterham Posted October 6, 2003 Share Posted October 6, 2003 Mike's wheels will set you back £909.72 incl VAT and Post and Packing for 2 of 6.5 x 13 and 2 of8.5x13 wheels incl nuts. I should know I've just bought some! IMHO better value than buying CF wings/nose etc Tony All part of my master plan for a sub 500kg Zetec engined 7. Link to comment Share on other sites More sharing options...
scooby dooby doo Posted October 6, 2003 Share Posted October 6, 2003 the wider rears tend to be fitted on higher powered cars - this means you can use a little (or a lot of) right foot and adjust out the under steer as you wish. for example my car has 175 and 205 CR500s on 6 and 7" wheel. It is fairly understeery if you just turn into a hairpin, neutral if you do it as you come off the brakes. On the exit it can be anything from understeer if you carried to much speed to lurid oversteer with full welly. I'd advise wider rear wheels for this set up though - I think the rear tyres squirm a bit too much meaning turn-in or initial power on is a bit weird after the initial bite before everything is settled. also a 175 CR500 is the same width as a 185 Yoko 32 (to within 1mm). HOOPY R706KGU Hoopylight R Link to comment Share on other sites More sharing options...
ELV15 Posted October 7, 2003 Share Posted October 7, 2003 I understand that the general consensus is that 13" wheels offer the best handling. What is the weight difference between Mike's wheels and the std 13" minilites? Tom Link to comment Share on other sites More sharing options...
Graham Perry Posted October 7, 2003 Share Posted October 7, 2003 I have both minilites and MiKes wheels. They are 1 kilo per wheel lighter, although some minilites do not live up to their name and weigh well over 5kg for a 13 x 6. I was looking to buy a secondhand minilite the other week as a spare and it weighed nearly 6 kg. MB wheels are typically about 4 kg depending upon width Link to comment Share on other sites More sharing options...
eric Posted October 7, 2003 Share Posted October 7, 2003 Last minute information 048 will be avalaible in 185/60 13" in May 2004 eric Link to comment Share on other sites More sharing options...
Tonycaterham Posted October 7, 2003 Share Posted October 7, 2003 Well I received my wheels from Mike Barnby this morning and promptly went to Alba Tyres in Leeds who dealing in expensive alloys and having a special machine that fits tyres by holing the wheel centre and has no contact with the rim so should know what they are doing. Well they do not! Buggered up one of my ACB10's ! Only found out later that they had cut into the beading. Failed to fit tyres and accused me of my tyres being wrong size for rims and had caused their machine to break whilst trying to fit 7/21 x13 of the 6.5 fronts. Only found out when local garage completed the job and discovered a slow leak in one on the tyres fitted by Alba on further inspection they had attemted to glue the cut in the bead! They will be receiving a letter and I will pursue them through the small claims court if neccessary. Rant off for now Tony Link to comment Share on other sites More sharing options...
Mark H Posted October 25, 2003 Share Posted October 25, 2003 Does Mike Barnby have a webb site 🤔 Link to comment Share on other sites More sharing options...
Jason Plato Posted October 26, 2003 Share Posted October 26, 2003 No Link to comment Share on other sites More sharing options...
Marius Posted October 26, 2003 Share Posted October 26, 2003 And if he would have one it would probably take half a year to load... Link to comment Share on other sites More sharing options...
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