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Thread: Race chassis

  1. #1486
    Join Date
    25th March 2004 - 17:22
    Bike
    RZ496/Street Triple R/GasGas/ etc etc
    Location
    Wellington. . ok the hutt
    Posts
    17,114
    Athena are the other choice people seem to go for. My 496 Cheetah kit with PVs crank etc was circa $5k a decade ago. Pre kids of course. The Cheetah Cubs are cheaper option. There is the Serval which is similar but not so biased on drag racing which is what these quad guys in 'murcia seem obsessed with.
    I've been told. Dreaming`s free.
    Think I'll go, back to sleep.
    Everybody listen, voices in my head
    Everybody listen, do yours say, what mine says?

  2. #1487
    Join Date
    5th December 2010 - 23:03
    Bike
    rgv250 vj22
    Location
    Palmy
    Posts
    13
    What did you end up doing for your exhausts?
    I think Im in it about 4K including the bike . . . So far

  3. #1488
    Join Date
    25th March 2004 - 17:22
    Bike
    RZ496/Street Triple R/GasGas/ etc etc
    Location
    Wellington. . ok the hutt
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    17,114
    I had a forum mate in souf affrika hydraulic some headers and send pipes in kit form. Actually he did 2 headers, the 2nd set were made into the VJ21 RZ 421. Actually I think his engine was level so he must have made new rear mounts. . . . getting back to chassis for a small moment.
    I've been told. Dreaming`s free.
    Think I'll go, back to sleep.
    Everybody listen, voices in my head
    Everybody listen, do yours say, what mine says?

  4. #1489
    Join Date
    5th December 2010 - 23:03
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    rgv250 vj22
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    Palmy
    Posts
    13
    Decided to go ahead and re-do the engine mounts after looking at how every other Banshee swap had the engine sitting pretty much level so i made up a frame jig during the week. It'll probably come in handy for a few of my other projects I've got coming up.


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  5. #1490
    Join Date
    20th April 2011 - 08:45
    Bike
    none
    Location
    Raalte, Netherlands
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    2,845
    Just stumbled across this Feet-First discourse.
    http://www.oesten-creasey.eu/hightec...fNM3-qaqI1p2QI
    Feeling fairly positive about FF-twowheelers myself, I agree with about 50% of the contents.
    In other words: food for thought.

  6. #1491
    Join Date
    25th March 2004 - 17:22
    Bike
    RZ496/Street Triple R/GasGas/ etc etc
    Location
    Wellington. . ok the hutt
    Posts
    17,114
    As I lie here in bed in the approximate position propped up a bit I can't think of anything more unnatural than lining up a corner and deciding to roll into it. Can't move any weight and unlike luge tracks, race tracks are severely banked on every corner. Long wheelbase and you'd have to lean further to achieve the same effect, again with minimal weight redistribution.
    I've been told. Dreaming`s free.
    Think I'll go, back to sleep.
    Everybody listen, voices in my head
    Everybody listen, do yours say, what mine says?

  7. #1492
    Join Date
    2nd July 2013 - 11:52
    Bike
    GPR150
    Location
    palmertson north
    Posts
    2,304
    Quote Originally Posted by el chupacabra View Post
    Decided to go ahead and re-do the engine mounts after looking at how every other Banshee swap had the engine sitting pretty much level so i made up a frame jig during the week. It'll probably come in handy for a few of my other projects I've got coming up.


    Click image for larger version. 

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    nice . Should go well . May need to steping the fork angle a bit
    i'm over buckets

  8. #1493
    Join Date
    19th October 2014 - 17:49
    Bike
    whatever I can get running - dirt/track/
    Location
    San Francisco
    Posts
    375
    Frits, there's more of Royce's (and other FF enthusiasts) writing and photos at

    http://www.bikeweb.com/

    Dave, NSU was planning to use the short (compared to the LSR bikes) Baumm road race FF on fast/open tracks and the conventional GP racers on tight stuff, in a "horses for courses" concept. But they pulled out of GP racing before doing more than testing.



    I think FFs have a lot to offer in certain cases. Rossi etc are probably not going to want them in the high-end road race case because that (to me) is so specialized it hardly qualifies as a regular motorcycle activity (much like watching Bau defy physics on a trials bike). For a public roads bike they have a lot to offer, and I suspect that if they help a rider to feel more confident (as has been reported by owners of Gurney Alligators and some of the few track FFs) they might actually help slow/low fear threshold racers like me go a bit faster in club racing. I was going to build a track FF to address some ergo issues I have (stiff neck that makes it hard to look around corners with clip-ons, hands that go numb from pressure) but I'm now a former racer so that project has lost a lot of what little momentum it had.

    Some FF proponents are very much in "evangelist" mode and I think there are some claims made for them that seem unlikely to hold up. But on the other hand there seems to be a lot of riders of conventional HF bikes with very closed minds who won't consider anything that doesn't look like what everyone has been riding for the last century+. A Gurney owner told me he likes to park his bike at a gathering spot and hang around to listen to the (often uninformed) comments. When he finds a likely suspect who pontificates on "must be crap, can't work" he'll offer them the keys for a quick test ride. He said he never had anyone come back who hadn't changed their opinion.

    cheers,
    Michael

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