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      02-14-2020, 11:59 AM   #1
M5theonlyone
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Drives: BMW M5 V8 Gunmetal
Join Date: Aug 2018
Location: Southern England

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2013 BMW M5  [5.00]
Ribbed rear wheel rims in F1

So far I've only seen the ribbed rims on the launch McLaren presumably incorporating the similar Merc system of keeping the rear tyres cooler at race temperatures.It'll be interesting to see how many makes will sport this mod also taking in smaller wheel nut apperature as seen on the SF1000 for additional heat escape from brakes.