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New High Score? - Lean Angle
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Fri Aug 21, 2020 3:56 am
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So far I'm comfy on the road up to 38° (snapshot below), but this guy starts grinding on the track at 53° (<-- this is a link). |
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Screenshot_20200721-152850_Connected.jpg - Bild entfernt (keine Rechte)
I ride 2019 R1250GSA, 2016 Honda PCX150, 2013 Piaggio BV350
my wife rides 2020 R1250GS, 2015 Honda PCX150 Both proud former owners of a pair of 2016 R1200RS |
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I really admire those of you who have the "guts" to test the limits of max lean angle. You can only find it to the point where either the front or rear tire starts slipping out, have the very fast reflexes (and technique) to catch that or suffer the consequences of a low side. The 45 degree is very impressive. Note at that angle the side forces are a full 1 G, that is the side slip force is equal to the total weigh of bike and rider 700 lbs down vertical AND 700 lbs to the side. The tire is really working hard! Going higher than 45 degrees the side force increases in a non linear rate... enjoy! |
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Zitat von Vtbob im Beitrag #5 I’ve never seen it explained that way. Interesting. Thanks. |
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Zitat von MrVvrroomm im Beitrag #4 What force does the G-value represent?
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Zitat von Mr. 36654 im Beitrag #7Zitat von MrVvrroomm im Beitrag #4 What force does the G-value represent?[/quote] That's from BMW Motorrad Connected app. This is just a screenshot from her phone. There's much more data available on app. The G-value shown is max acceleration on this particular ride. It records a new ride each time you stop/start up again. I use same app on my '19 R1250GSA. I've seen 1.3G max acceleration and 1.1G deceleration.
I ride 2019 R1250GSA, 2016 Honda PCX150, 2013 Piaggio BV350
my wife rides 2020 R1250GS, 2015 Honda PCX150 Both proud former owners of a pair of 2016 R1200RS |
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Zitat von MrVvrroomm im Beitrag #8 Assuming those values indicate straight-line acceleration and braking, 1.3G means you went 0 to 60MPH in 92.5-ft. The 1.1G decel is equivalent to a 60 to 0mph stop in 109-ft. I doubt either of those values are possible on a race bike and ideal track conditions. I'm thinking these are instantaneous values.
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Zitat von Mr. 36654 im Beitrag #9Zitat von MrVvrroomm im Beitrag #8I'm thinking these are instantaneous values. They are
I ride 2019 R1250GSA, 2016 Honda PCX150, 2013 Piaggio BV350
my wife rides 2020 R1250GS, 2015 Honda PCX150 Both proud former owners of a pair of 2016 R1200RS |
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Zitat von MrVvrroomm im Beitrag #10Zitat von Mr. 36654 im Beitrag #9Zitat von MrVvrroomm im Beitrag #8I'm thinking these are instantaneous values. Hmm........................what kind of values can you generate by doing a rapid countersteer swerve??
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Zitat von Mr. 36654 im Beitrag #11Zitat von MrVvrroomm im Beitrag #10Zitat von Mr. 36654 im Beitrag #9Zitat von MrVvrroomm im Beitrag #8I'm thinking these are instantaneous values. Dunno, but you would probably exceed 53° lean angle as a consequence though.  |
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Zitat von Elmer J Fudd im Beitrag #12Zitat von Mr. 36654 im Beitrag #11Zitat von MrVvrroomm im Beitrag #10Zitat von Mr. 36654 im Beitrag #9Zitat von MrVvrroomm im Beitrag #8I'm thinking these are instantaneous values. Possibly, but that steady-state condition isn't of interest to me.
Old Forum Orphan
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Zitat von Vtbob im Beitrag #14 Please excuse my ignorance. I don't understand what is meat by a "rapid counter steer swerve" means. my limited understand implies that a quick counter steer pull on the bar would sharply increase the lean angle....maybe too far and drop the bike?? I'm sure I'm missing something[/quote] Countersteer one way then quickly countersteer in the opposite direction to perform a swerve. You should get a high instantaneous value of acceleration at the start of each countersteer.
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