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  1. S

    Cast to forged wheels

    Exactly, as I said in my post the main mass saving in a carbon wheel is in the rim and the spokes as the hub and other parts at the centre of the wheel (i.e. nearer to the axle) are aluminium. As many of the parts around the hub such as discs, carriers and the hub itself are still alumimium...
  2. S

    Cast to forged wheels

    In my opinion it's a massive waste of money in changing from standard to forged as there is very little weight saving - carbon is another matter. I've weighed all three rear wheels on my Gen 3 including discs, sprockets, carrier and spacers and all bolts fitted ready to go on the bike whith...
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    Sprocket ratios and chain lengths for trackdays

    Thanks for the comments and apologies for the mistake in quoting chaincommander.com it should have been gearingcommander.com - useful calculating tool. The reasons I was looking for comments and considering increasing the chain length is as follows: - I believe one of the main geometry...
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    Sprocket ratios and chain lengths for trackdays

    The Gen4 has standard front/rear sprocket of 17/45 with 120 links in the chain ( PS: I noticed a few places where 118 links is quoted as standard including chaincommander.com - ignore this it is wrong, I counted them) Those in the know on this forum say the best combination for trackdays on the...
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    Hello from a Gen4 M Sport track day rider

    Badboy, According to chaincommander.com 16/43 with the standard 120 link chain will give a 12.2 mm effective increase in swinging arm length and in combination with a 122 link chain you would get a 28.1 mm increase in swingarm. As most club racers would change both chain and sprockets...
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    Hello from a Gen4 M Sport track day rider

    That question mark was meant to be a smiley face with a wink... still learning how to use this forum.
  7. S

    Hello from a Gen4 M Sport track day rider

    You could lend it to me to test it at Brno for you. ?
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    Hello from a Gen4 M Sport track day rider

    Thanks for the comparison of TC between Gen3/4 and RS2E, it confirms it will be okay for me even if I start at +5 and work down from there. I was worried you had to be a very fast racer in order to get any use out of it which you obviously are if you're having to use -7 to stop it being too...
  9. S

    Hello from a Gen4 M Sport track day rider

    I saw that video in your thread before - sounds great, assume you can easily hear this yourself while riding.
  10. S

    Hello from a Gen4 M Sport track day rider

    Cheers Bad Boy, I've now got a Akrapovic full race system with the long can fitted. I've been told that the bike will run perfectly well without remapping due to the improved Lambda sensors on the Gen 4 but you're still running from the same base BMW map that has some dips in the curve due to...
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    Hello from a Gen4 M Sport track day rider

    Hi Alex, I saw your review on rs2e - excellent! and also BMW bad boys. I might take the plunge before Brno then. Regarding TC settings are they set up for racer use if they are so far different from the BMW ones? The reason I ask is that I like to see the TC doing something at various turns...
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    Hello from a Gen4 M Sport track day rider

    Hi, Thanks for the info on the final drive ratio's but the difference is only 1.5% which only gives an extra 200 revs at 13,000 revs in the same gear? I'll try the SBS Dual Sintered if you think they are better. I've only got Almeria in November booked after Brno this year as I'm waiting to...
  13. S

    Hello from a Gen4 M Sport track day rider

    Hi Mark, I was at Almeria on my red Milwaukee colours Gen3 on 6,7,8th March just before lock-down. I?ve been to Mugello, great track but a bit expensive. Enjoy! Steve
  14. S

    Hello from a Gen4 M Sport track day rider

    Hello, I only use the S1000RR's for the track as soon as they are run-in. Although I've been a road rider as well since 1976 (currently Kwak S1000SX) I mostly do track days and usually keep my S1000RR at Almeria Nov to March with Focused Events and then bring it back for other overseas and UK...
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