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  • Middo started a new discussion, King Pin Inclination Angles
    King Pin Inclination Angles
    Does anyone have any experience with King Pin Inclination angles for front steering?

    My research suggests the King Pins on the Alpha P2 where around 9 degrees in camber (top of pin towards the car) and 8 degrees in caster (Top of pin to the...
    Does anyone have any experience with King Pin Inclination angles for front steering?

    My research suggests the King Pins on the Alpha P2 where around 9 degrees in camber (top of pin towards the car) and 8 degrees in caster (Top of pin to the rear).

    While this might have given the original car good stability at speed, I am a bit concerned that these angles are excessive (especially since some cyclekarts are built 0,0) and while it may be stable it might not be real nimble and make it less fun in that respect.

    Anyone built a setup they are happy with?

    See Table Below

    Racecar Model Forward-Aft KPI (degrees) In-Out KPI (degrees)
    Alfa Romeo P2 7-9 8-10
    Bugatti Type 35 8-10 9-11
    Mercedes-Benz W25 6-8 7-9
    Auto Union Type C 7-9 8-10
    Maserati 8CM 7-9 8-10
    Delage 15 S8 8-10 9-11
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  •   admin commented on this post about 11 months ago
    Finished tacking the flanges to the web for the 2 side rails. decided not to trim flanges to the correct width until I have attached the sides together braced them and fully welded them together.

    Also, Tyres arrived during the week $15 bucks each + $12.50 shipping each. Not off roaders but they'll do for a start.
    Comments (3)
    • $27.50 a corner is an absolute bargain. Paid three times that for mine at the local M/C shop.
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    • Yeah a good bargain, but I found the auction with the same photos on ebay where the seller had bid for them at Graysonline and paid $40 for IYeah a good bargain, but I found the auction with the same photos on ebay where the seller had bid for them at Graysonline and paid $40 for I estimate 60 tyres. Now that's a bargain.  More ...
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    • Is this the one?  https://www.ebay.com.au/itm/275854518581 Looks like postage has increased, but still a good deal.
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  • Middo replied to a discussion, Victorian Group
    Hi Tim

    Tim here also, I am in Victoria but I'm a bit far away - Mildura.

    When I get this kart built I might have to do a bit of travelling to meet with other Cycle Karters. Might be finished around March April next year.

    Hope you have...
    Hi Tim

    Tim here also, I am in Victoria but I'm a bit far away - Mildura.

    When I get this kart built I might have to do a bit of travelling to meet with other Cycle Karters. Might be finished around March April next year.

    Hope you have success in finding some locals
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  • Middo unlocked the badge Journalist
    Journalist
    Loves browsing photos. To unlock this badge, you need to browse more than 150 photos on the site.
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  •   Mick commented on this post about 1 year ago
    Continuing work on the Chassis Side Rails, the mid chassis sections in the photos will be completed during the week. Once the top and bottom flanges are tacked into place the flanges will be trimmed to follow the contour of the outside web with the overall width of each rail being 35mm. Next week I plan to start work on the forward section of...
    Continuing work on the Chassis Side Rails, the mid chassis sections in the photos will be completed during the week. Once the top and bottom flanges are tacked into place the flanges will be trimmed to follow the contour of the outside web with the overall width of each rail being 35mm. Next week I plan to start work on the forward section of the chassis that support the front springs. I am resisting doing any substantial welding until the whole frame is tacked together.
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  •   Mick reacted to this post about 1 year ago
    Bit of a one step forward and two steps back day. tacked a flange to the chassis rail web today but went a bit heavy with the tacks and bowed the web in the direction it shouldn't.

    I dealt with it like any good Cyclekart builder should, I kicked a tin of bolts in anger and then sat in front of the TV with a beer and pondered my life choices....
    Bit of a one step forward and two steps back day. tacked a flange to the chassis rail web today but went a bit heavy with the tacks and bowed the web in the direction it shouldn't.

    I dealt with it like any good Cyclekart builder should, I kicked a tin of bolts in anger and then sat in front of the TV with a beer and pondered my life choices. Scrap that one and start again.

    Next time I will lightly tack both flanges and not do any welding until I have both left and right rails in a temporary jig and control the heat.
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  •   Mick commented on this post about 1 year ago
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  • Middo liked the page, Brooklands Bentley
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  •   Mick commented on this post about 1 year ago
    Hi all, new Cyclekart builder here. Have finished designing my Alpha Romeo P2 in AutCad including the curved chasis and making the MDF buck to construct it on. Will post some photos soon.
    Comments (1)
    • Awesome stuff. I'm also planning to make a buck to metal form the boat tail on mine but still a long way off from that. Very interested to see yourAwesome stuff. I'm also planning to make a buck to metal form the boat tail on mine but still a long way off from that. Very interested to see your build.  More ...
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  • Middo unlocked the badge Cyclekartiste
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