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  • Mick started a new discussion, Promotional Flyers
    Promotional Flyers
    •   General
    •   Thursday, 17 October 2024
    With event season already here we decided to make up some promotional flyers. If you are attending an event, or have a noticeboard at your local auto club or auto store, we've made some flyers that you can print out to help spread the word.

    Do...
    With event season already here we decided to make up some promotional flyers. If you are attending an event, or have a noticeboard at your local auto club or auto store, we've made some flyers that you can print out to help spread the word.

    Don't forget you can also print out a personal flyer with a QR code that links directly to your Cyclekart build page. Just click on the link in the left column on your build page.

    You can download a printable PDF version of the promotional flyer below

    https://cyclekarts.org.au/images/club/What-is-a-Cyclekart-Flyer.png
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  •   Mel reacted to this post about 2 days ago
    Mick started a new discussion, Cyclekart Club events
    Cyclekart Club events
    •   General
    •   Sunday, 13 October 2024
    Recently the club were approached by Bill Berlemon from the South Australian Vintage Speedcar Association (SAVSA) who wanted to invite the club to participate in some of the long established events that SAVSA are involved in.

    The South...
    Recently the club were approached by Bill Berlemon from the South Australian Vintage Speedcar Association (SAVSA) who wanted to invite the club to participate in some of the long established events that SAVSA are involved in.

    The South Australian Vintage Speedcar Association is a long standing club that promotes and preserve Speedway's "Golden Era" at Rowley Park Speedway. It is dedicated to the innovative builders and heroic drivers of speedcars and three quarter midgets (TQ's) that competed on dirt speedways prior to 1980, mainly at Rowley Park.

    SAVSA have unfortunately experienced a decline in participants in recent times, which has caused them to consider what the future of events might look like for them. The concern being that the decline in numbers may potentially threaten the clubs ability to hold future events at all, if participation numbers drop too far.

    So Bill from SAVSA reached out to us to see if we would be interested in attending some of the SAVSA events and showing our Cyclekarts. The idea being that we can help to boost participant numbers for events, and in return we get a helping hand in getting the club established, which also includes track time at their Kapunda events.

    SAVSA have a pretty full events calendar with one event generally being held every month. They also have quarterly track days held at The Kapunda Track which are held in a test-and-tune format. This follows a long tradition of Speedcars and Cycle Speedway events at the Kapunda Track.

    Bill attended the SA monthly club meeting this past Friday and took the time to run through SAVSA's event calendar and tell us a bit about their history and goals. We think that this is a fantastic opportunity for the club and will of course help to get exposure for Cyclekarts and Cyclekarting. It's a great first step towards eventually holding events of our own.

    I will add the SAVSA events to the event calendar and encourage anyone that has a Cyclekart, even if it is not fully completed, to enrol to attend. Events are open to all.

    Even if you do not currently have a cyclekart, but are planning to build one. It could be a good target to aim to attend a future event and get cracking on your build. There's nothing like a deadline to help get you motivated.

    If you are interested in attending any of the events listed please flick me an email to events@cyclekarts.org.au and include your phone number and some details about your cyclekart.

    For those who are located interstate, we are looking for state representatives to join the club committee and help promote cyclekarting in each state. If you are interested in a committee role, please get in touch.
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  • John Lawrence unlocked the badge Cyclekartiste
    Cyclekartiste
    Being part of the Aussie Cyclekarts community. To unlock this badge, you need to register on this site.
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  • John Lawrence just registered on the site
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  • Mick started a new discussion, Murray Bridge show
    Murray Bridge show
    •   General
    •   Sunday, 29 September 2024
    461511891_8883077778393587_4386131671606958436_n.jpg

    Chris Rowes Cyclekart at the Murray Bridge show, displaying with the South Australian Vintage Speedcar Association.

    We were lucky enough to receive an invitation from the SAVSA to be a part of their display. Chris Rowe stepped up and...
    461511891_8883077778393587_4386131671606958436_n.jpg

    Chris Rowes Cyclekart at the Murray Bridge show, displaying with the South Australian Vintage Speedcar Association.

    We were lucky enough to receive an invitation from the SAVSA to be a part of their display. Chris Rowe stepped up and travelled to Murray Bridge to spread the good word and represent the club.

    The SAVSA are a long established association who function to preserve Speedway's "Golden Era" which was centered around the Rowley Park Speedway here in SA.

    The SAVSA have reached out to the Club with an invitation to join some of their future events. There may even be the possibility of test-and-tune track time as well.

    There is another event with the SAVSA planned for 27th October at The Bend. If you would like to attend, let me know and I will sort out some details. Would be good to get a few more Cyclekarts in attendance.

    Bill Berlemon from the SAVSA will also be attending our monthly meeting next month on October 11th, Please come and drop in and say hi.

    https://www.facebook.com/SAVSAInc

    461589859_8883078141726884_3992436536066709815_n.jpg

    461546358_8883078138393551_3704963559389935458_n.jpg
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  • Mick likes a discussion post
    Engine mount vibration insulator
    For you guys with 3D Printers, this engine mount vibration insulator may be of interest.
    It needs to be printed from flexible PLA with high percentage infill (I used 100% although better results at the expense of crushability can be acheived at...
    For you guys with 3D Printers, this engine mount vibration insulator may be of interest.
    It needs to be printed from flexible PLA with high percentage infill (I used 100% although better results at the expense of crushability can be acheived at 75%).
    This has worked really well on the Chinese clone engine I have.
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  • Mick replied to a discussion, King Pin Inclination Angles
    King pin inclination (KPI) along with caster (which you describe as forward-aft KPI) help to provide steering self centering and therefore stability. With a near zero inclination and caster angle the steering will be very light and twitchy, and...
    King pin inclination (KPI) along with caster (which you describe as forward-aft KPI) help to provide steering self centering and therefore stability. With a near zero inclination and caster angle the steering will be very light and twitchy, and you will find that bumps and ruts in the road will have a negative effect on handling, as the cyclekart will tend to dart around and be very lively.

    By adding KPI and caster the natural tendency of the steering is that the weight of the car will push the wheels back to their centred position. Bumps and ruts will have much less of a negative impact as any displacement of the wheels is automatically corrected, but steering will be much heavier.

    The figures that you have quoted seem fairly typical and are a reasonable guide. Some run as much as 15 degrees KPI.

    However it should be considered that King pin inclination and caster alone do not completely define the handling as there are additional factors such as Ackerman angle and scrub radius that also influence handling characteristics.

    HTH
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  • Mick liked the page, 1930s Amilcar
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  • Mick replied to a discussion, 100mph in a CycleKart...
    April fools :D
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  • Mick likes a discussion post
    The Cyclekart Club of Australia
    •   General
    •   Monday, 25 March 2024
    Over the coming month Aussie Cyclekarts and its associated resources will formally transition into The Cyclekart Club of Australia.

    The reason for this move is to support the need for a formal body so that events requiring insurances can be...
    Over the coming month Aussie Cyclekarts and its associated resources will formally transition into The Cyclekart Club of Australia.

    The reason for this move is to support the need for a formal body so that events requiring insurances can be organised. Some of this was outlined in the We Need You post made a few weeks back.

    This change does not affect existing or future users of the website or social media channels which will remain free to use for non club members.

    The main goal with club membership is that it will provide insurance for members participating in club events. So if you are not participating in club events, there is no formal requirement to be a club member. Of course, you may still elect to join the club as it will in time provide other benefits.

    Club events may take on many different forms and includes both static events and dynamic events. Dynamic events are the events that require public liability insurance and include any meeting where Cyclekarts are driven. For example the monthly get together that your local Cyclekart group holds.

    The intent is that the club provides insurance for dynamic events, like your local groups monthly get together so that you and your buddies do not have to. All that is required is that all participants are members of the club and that your meeting is conducted in accordance with the club (read: insurers) rules.

    So over the coming month you will note a change to the website URL which will migrate from cyclekarts.com.au to cyclekarts.org.au and likewise a change to the email address associated with the site.

    At this stage we have not determined the best action to take with regards to social media channels which all currently have the 'Aussie Cyclekarts' branding.

    We are in current negotiation with the insurers to organise a policy that will cater for our needs. Once we have a view on what this looks like we will be able to finalise membership costs and open membership up to those who wish to join.

    If you want to take advantage of the insurance for your local group meetings there will be some pre-requisites that need to be managed. Please get in contact for more information.
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  •   phil33 reacted to this post about 6 months ago
    Mick started a new discussion, Springs
    Springs
    •   General
    •   Monday, 25 March 2024
    I've been trying to find a local source of springs for the club. Unfortunately the biggest barrier seems to be obtaining the correct size material. Most (all local) spring manufacturers use 6 x 40mm minimum size which is larger than the 6 x 30mm...
    I've been trying to find a local source of springs for the club. Unfortunately the biggest barrier seems to be obtaining the correct size material. Most (all local) spring manufacturers use 6 x 40mm minimum size which is larger than the 6 x 30mm that is generally prescribed.

    I even spent some time talking to tuk-tuk & rickshaw manufacturers in China and India but they too use larger material which is generally 50mm wide by 6mm.

    I did some calculations on the locally available material size, using the renegade Cyclekarts springs as a baseline. These are 24" eye-to-eye, 1 1/4" wide and 1/4" thick, which equates to 630mm eye-to-eye and 31mm x 6mm.

    Using a spring calculator this gives a baseline spring rate of 103.57 lb/inch

    To achieve the same spring rate using the locally available 40mm wide stock we can increase the eye-to-eye distance to 660mm to get a spring rate of 102.31 lb/inch, which is only a marginal increase in length. The increase in length would effectively shift the front axle back by 15mm, which is more or less negligible.

    So I think that for a small compromise in length we can get a comparable spring manufactured.

    Here's the comparison

    Screenshot 2024-03-25 at 2.58.33 pm.png
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  •   Riley 9 Brooklands commented on this post about 6 months ago
    Mail call...

    Found these springs from a Kawasaki Mule and thought they might work for a Cyclekart. Unfortunately the eye-to-eye distance is a little long at 750mm. Material is 6x50mm so also a little too heavy duty. They have three leaves, two of which are usable. I'm figuring that I can weld some mounting eyes to the second leaves which are...
    Mail call...

    Found these springs from a Kawasaki Mule and thought they might work for a Cyclekart. Unfortunately the eye-to-eye distance is a little long at 750mm. Material is 6x50mm so also a little too heavy duty. They have three leaves, two of which are usable. I'm figuring that I can weld some mounting eyes to the second leaves which are 600mm long to make another pair of springs. The longer springs could be chopped down and used as 1/4 ellipticals on another build.

    Was hoping that these could be a potential source of springs but alas the search continues.
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    • Interestingly...

      Spring rate for the single leaf at 750mm eye to eye is 89.23 lb/inch
      Spring rate for the Renegade Cyclekart springs is 103.57Interestingly...

      Spring rate for the single leaf at 750mm eye to eye is 89.23 lb/inch
      Spring rate for the Renegade Cyclekart springs is 103.57 lb/inch

      So the additional length reduces the spring rate to an acceptable level.
        More ...
      Reported
    • BTW The 600mm length gives 174.28 lb/inch - a little on the high side.
      Reported
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  • Mick will be attending Adelaide Cyclekarts Monthly Meeting
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  •   Mick commented on this post about 6 months ago
    Mick uploaded a new video
    How fast can a Cycle kart Go? We find out for the 2023 Corona Cycle kart speed challenge.
    Corona Speed challenge event. Record and submit your speed to Carlos Carneiro via the Cyclekarts North America page.
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  • Mick replied to a discussion, Rear Axle Set-up
    Do you know what kind of length you ended up with? Figure I might add some axle lengths to the tech article to give people a starting point
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  • Just a reminder that our monthly meet is tonight.

    Hope to see you there.
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  • Mick liked the page, Austin Seven special
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The Cyclekart Club of Australia acknowledges the Traditional Custodians of country and their connections to land, sea and community. 

We pay respect to Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.

 

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