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Post by teaman on Apr 22, 2015 23:19:10 GMT
Good looking bike, I love the color combination with all that black and the white and red, I might borrow it if you dont mind the bigger headlight looks awsome too Those pipes look like my original b6 one, you dont miss some deep growl? A pair of carbons would look cool or maybe alu too keep the silver look
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Post by captain chaos on Apr 23, 2015 5:22:00 GMT
The cans are from a GSX-R1100M. They are nice and quiet, I've had a few loud piped bikes before but on long distance it becomes a pain in the ears. When I go for a ride it's for at least 100km so I like it not too loud.
The dual pod K&N's give a nice growl when giving it some.
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Post by greasemonkey on Apr 23, 2015 12:39:42 GMT
mmm, looks very good m8.
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Post by captain chaos on Apr 23, 2015 15:06:09 GMT
Thanks. And how's yours doing? Moved it out of the kitchen yet?
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Post by greasemonkey on Apr 24, 2015 10:22:15 GMT
Thanks. And how's yours doing? Moved it out of the kitchen yet? Sure, to the attic. but seeing yours makes wanne start on it.
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Post by cregnybaa on Apr 24, 2015 10:48:34 GMT
Do you not think the engine is mounted to high in the frame as the centre of the swingarm pivot and the centre of the front sprocket should be in line otherwise you will create handling problems.
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Post by captain chaos on Apr 24, 2015 13:27:01 GMT
Do you not think the engine is mounted to high in the frame as the centre of the swingarm pivot and the centre of the front sprocket should be in line otherwise you will create handling problems. the swingarm pivot is a bit lower than original. Bought the frame like this, with the lower pivot, and the rear suspension was badly designed (only 2 or 3 cm wheel travel). Some numpty had done a shit job. We swapped the complete rear end for a later ZX9R swingarm and linkage and shock. It now works perfectly and after more than 10.000 km we can say there's no handling problems.
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Post by cregnybaa on Apr 26, 2015 11:41:46 GMT
At the end of the day if your happy with it thats ok, but having the front sprocket above the centre of swingarm pivot is incorrect and will cause the swingarm to be pulled up under acceleration.
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Post by captain chaos on Apr 26, 2015 15:42:14 GMT
I know, when coming out of a corner, still leaned over, and opening the throttle I can feel the rear getting compressed a bit. It's not perfect but for me and this bike it's not a problem. Fatty is for relaxed longer distance rides, for more "spirited" riding I use the Slingy 750.
The frame had been modified by a previous owner who wanted the ass "up there outa sight skyscraper level" apparently. When we (Igor and I) first built this bike, Igor too wanted the rear high, so we built it around this swingarm geometry. Side effect was that the head angle was too steep so it would tankslap easily. Pretty quickly we lowered the back (we made it adjustable) and didn't bother to move the swingarm spindle back to the original place. It turned out to still handle ok so I left it like this.
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Post by quazi on Apr 26, 2015 15:44:22 GMT
Do you not think the engine is mounted to high in the frame as the centre of the swingarm pivot and the centre of the front sprocket should be in line otherwise you will create handling problems. Not quite sure what you mean there bud, if you look at most modern sportsbikes the front sprocket, swingarm pivot and rear wheel spindle are virtually in line all the way. That is for the most part a perfect scenario for suspension travel, so as not to foul the chain run on the swingarm upper or lower run. It allows a specific degree on the swingarm which for handling purposes is an ideal degree, roughly 12degrees give or take a gnats cock for the given requirement. Now whilst not always possible, there is a maximum permissable limit for being either above or below that centreline for that very reason, restricted by the length of travel available throughout the suspension and linkage ratios/configuration. I'm always open to further education, but I investigated this at length during my build, as I was matting things together that were not meant to be together, so I had nothing to go with from an original stand point, hence my need to investigate and research the subject.
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Post by captain chaos on Apr 26, 2015 16:34:34 GMT
Quazi, if you draw a line between the front and the rear sprocket centres, the swingarm spindle should be (ideally) on this line. Since the swingarm moves to allow suspension travel, in the fully extended position the spindle should be slightly under this line, fully compressed it should be slightly above this line. The longer the swingarm, the smaller the variation is in the spindle position, that's why newer bikes (R1 etc) all have relatively long swingarms.
If (like in my Fatty's case) the swingarm spindle is too far under the line, the pulling chain tries to compress the rear suspension under acceleration. The first gen. Kwak ZX9-R was famous for this, it didn't handle very well because of this geometry problem.
Since I'm not trying to ride on the limits all the time (as I wrote earlier, this is more a "touring" bike for me) I have no problems whatsoever with this little design error.
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Post by quazi on Apr 26, 2015 17:06:40 GMT
Did you not read my post then? I know all about it old fella. But thanks anyway.
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Post by captain chaos on Apr 26, 2015 17:45:51 GMT
Did you not read my post then? I know all about it old fella. But thanks anyway. first line ("Not quite sure what you mean there bud") implies that you don't.
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Post by quazi on Apr 26, 2015 18:36:48 GMT
Did you not read my post then? I know all about it old fella. But thanks anyway. first line ("Not quite sure what you mean there bud") implies that you don't. No you missed the point of line. Now let's not get into a debate over it.
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Post by bigkenx on Apr 26, 2015 18:54:44 GMT
A mass debate fnarr fnarr
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