Tyres & Wheels Delta Alloy Wheel Widths

Discussion in '8th Generation (2008-2015) [Acura TSX]' started by tomwillie, Tuesday 7th Oct, 2014.

  1. tomwillie Valued Contributor ★ ★ ★ ☆ ☆

    England Tom Royston
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    I have noticed that 17 inch Delta Alloy wheels by WSP are given as 17 x 7 whereas the standard Honda 17 inch wheels are 17 x 7.5J, thus are WSP wheels are slightly narrower which means less stability provided to tyres?

    My handbook states tyres for my 2.4EXi as 235/45R18 98W on 18 x 8J wheels but on 18 inch Delta Alloy wheels my car came with 225/45R18 91Y tyres. When I took these wheels off to clean them the size given is 18 x 7.5.

    In the Accord brochure the tyre size given for Accord 2.2 I-DTEC Type-S is 235/45R18 on 18 x 8J wheels. Thus if the optional Sigma Alloy wheels are 18 x 7.5, as the Delta Alloy wheels, then special 8J wide OEM wheels must be fitted to Type-S models assuming 7.5 inches is the same as 7.5J?
     
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  2. Ichiban Founder Staff Team

    England CJ Leeds
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    WSP yes you are right they narrower but will that make a big difference for a road going car? but will when you push it hard. What tyre brand were on the delta's when you got them? Yoko advans by any chance

    Enkie gave the Type-S larger rims that is correct.
     
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  3. tomwillie Valued Contributor ★ ★ ★ ☆ ☆

    England Tom Royston
    442
    165
    The tyres were original Yoko Advans on rear, worn to limit at 30k miles, but previous owner had put Firestone tyres on front so I changes all four for Michelin Primacy 3's 235/45R18 98W XL as fitted to Type-S as these tyres have " A "wet rating & Michelins latest technology a couple of years ago. They are wearing evenly all round, down to 5mm at front after 9.5k miles, no tramlining & can run at 33 psi as higher load rating than Advans. I think the 235/45 tyres look better than narrower/shallower 225/45 tyres. No problems with handling the way I drive so 7.5J width (found J is flange shape & 7.5 = 7.5J etc) is OK for the 235/45 tyres which also give better rim protection to alloy wheels than 225/45 OEM tyres.

    I will stick to Bridgestone Potenza MZ OEM for rear tyres on my S2000, dealer fitted new ones to front, as some people have hang ups about tyres on the S2000 and its mainly used when dry so lousy performance of the Bridgestone's in wet is not an issue for me. However, if S2000 were a daily drive I would have replaced the Bridgestone's with Goodyear Eagle F1 Asymmetric 2's.
     
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  4. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
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    The difference between 235/45 and 225/45 is so negligible I wouldn't worry about it. Either size will work fine and the slight extra overhang on the 235 is not really going to make any real world difference.

    Diameter668.7mm659.7mm
    Circumference2100.8mm2072.5mm
    Poke40.3mm40.3mm
    Inset150.3mm150.3mm
    Speedo error 0%1.36%
    Reading at 30mph 30mph30.41mph
    Reading at 60mph 60mph60.82mph
    Ride height gain 0mm-4.5mm
    Arch gap loss 0mm-4.5mm

    Side note, pop your Hondas in the club garage :Smile:
     
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  5. tomwillie Valued Contributor ★ ★ ★ ☆ ☆

    England Tom Royston
    442
    165
    Thanks to DD for comparison table. I did check difference in circumference effect on speedo before getting the 245/45 tyres & after fitting checked when speed states 30mpg Sat Nav gives 29mph so on the safe side.

    Regarding putting my Honda's in garage, due to concerns about identity theft & being of an older generation I feel no need to participate in social media activities such as Facebook & Twitter etc; so no introductions or photos but happy to exchange & receive advice and factual information.
     
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  6. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
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    That's fair enough, completely your own prerogative. Worth noting a lot of members blank their numberplates for privacy :Smile:
     
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