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admin updated an articleEditingParts Sources
- 19th Jan, 2019
- Resources
Below is a table listing parts sources for building a typical cyclekart. Generally these parts follow the 'traditional' Stevensons cyclekart design and basic technical specifications
Physical outlets and suppliers that you can go to (ie traditional 'shops') are listed by state and additional online sources are also included with links.
If you have questions about the parts required, or want to contribute to the list about, please post up in the Technical Forum.
Item State Detail Link / Address Price Engine ALL 6.5hp Honda GX Clone https://www.ebay.com.au/sch/i.html?_from=R40&_nkw=6.5+hp+engine&_sacat=0&LH_TitleDesc=0&_sop=15
$70 - $140+ SA Paramount PE200 https://www.paramountbrowns.com.au/products/petrol-engine-6-5hp/ $ 180 Torque Converter ALL 19mm / 3/4" shaft TAV30 Style https://www.ebay.com.au/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=go+kart+Torque+converter $115 Axle ALL KFL005 Rear axle bearings for 25mm axle $7 ea ALL Sprocket hub for 25mm shaft $50 Drive sprocket Various options / pitches available
$20-70 Brake disc and hub Various options available but generally 4mm thickness on disc
Brakes ALL Hydraulic master cylinder and two pot brake caliper https://www.ebay.com.au/itm/Hydraulic-Rear-Disc-Brake-Caliper-System-For-125cc-250cc-PIT-PRO-Quad-Dirt-Bike/273803644303NOTE: you will also need to buy seperate longer brake line $29 Wheels ALL Honda Postie bike wheels
(Honda CT110 / CT90)
https://www.gumtree.com.au/s-postie+bike+wheels/k0?sort=rank $Varies SA Refurbishment costs Associated Gritblasters
10 Dunorlan Rd, Edwardstown SA 5039
(08) 8374 1979$80 per wheel SA Tyres (fitted)
3.00-17-50PDC Motorcycles
Marion Rd, Marion SA 5043
(08) 8377 5566$125 per wheel ALL 6202.2RS Conversion bearings for front wheels 35mm x 16mm x 11mm (to suit 5/8" UNF bolt as spindle) $3.45 ea Chassis ALL Your Local Steel Supplier
SA 75 x 25 x 1.6mm steel
Approx 2670mm lengths
20 Bennet Avenue
Melrose Park, SA 5039$45 ish Suspension USA Approx 550mm eye to eye by 25mm wide by 120mm drop leaf spring https://www.buggystuff.com/Seat-Spring-5327.htm
NOTE: Above link is US supplier.
NOT AU Steering ALL M8 tie rod ends x 4 NOTE: 2x RH thread and 2x LH - thread if you want to make your own tie rods you will need to buy an M8 LH tap
$20 The sources listed above are not exhaustive, nor possibly the best / cheapest, but are generally sources where members have sourced parts from and have been happy with them. Prices may of course vary, so could currently be different to those listed above.
Revision History
2019-07-03 - Updated bearing size for front hub. Correct size for using a 5/8" UNF bolt as the spindle is a 6202.2RS Bearing (35x16x11)
2019-11-04 - Added details for tyres & wheel refurbishment costsPost is under moderationStream item published successfully. Item will now be visible on your stream. -
admin posted a new articleEditingPlans
- 30th Jun, 2019
- Resources
Whilst there are not any specific detailed plans you can download and build your kart to, there are quite a few guidelines and sketches that can be used as a starting point. Ideally all karts are a unique expression of the owner, each individually crafted to mimic or be inspired from the CycleCars of the turn of the last century. However not everyone has an automotive manufacturing background and so a basic chassis and drivetrain design from which they can then base their creations is a good idea.
The classical CycleKart design is known as the Stevenson design. This name is attributed to the guy that penned it and is the easiest style of kart to build. It has straight chassis rails, welded together with a slight taper from the rear to the front. The passenger compartment is generally a plywood box that sits between the rails. The bodywork is an extension of this basic box in whatever style the owner is trying to achieve.
The classic 'Stevenson' cyclekart design
There are also many variations on this basic design with profiled chassis and more ornate bodywork but the basic wheelbase and track of the kart remains essentially the same. There is no real limit to what you can do as long as your CycleKart follows the basic design outline as detailed in the technical section
You can find some additional plans and discussions on chassis design in the forums HERE
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admin updated an articleEditingParts Sources
- 19th Jan, 2019
- Resources
Below is a table listing parts sources for building a typical cyclekart. Generally these parts follow the 'traditional' Stevensons cyclekart design and basic technical specifications
Physical outlets and suppliers that you can go to (ie traditional 'shops') are listed by state and additional online sources are also included with links.
If you have questions about the parts required, or want to contribute to the list about, please post up in the Technical Forum.
Item State Detail Link / Address Price Engine ALL 6.5hp Honda GX Clone https://www.ebay.com.au/sch/i.html?_from=R40&_nkw=6.5+hp+engine&_sacat=0&LH_TitleDesc=0&_sop=15
$70 - $140+ SA Paramount PE200 https://www.paramountbrowns.com.au/products/petrol-engine-6-5hp/ $ 180 Torque Converter ALL 19mm / 3/4" shaft TAV30 Style https://www.ebay.com.au/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=go+kart+Torque+converter $115 Axle ALL KFL005 Rear axle bearings for 25mm axle $7 ea ALL Sprocket hub for 25mm shaft $50 Drive sprocket Various options / pitches available
$20-70 Brake disc and hub Various options available but generally 4mm thickness on disc
Brakes ALL Hydraulic master cylinder and two pot brake caliper https://www.ebay.com.au/itm/Hydraulic-Rear-Disc-Brake-Caliper-System-For-125cc-250cc-PIT-PRO-Quad-Dirt-Bike/273803644303NOTE: you will also need to buy seperate longer brake line $29 Wheels ALL Honda Postie bike wheels
(Honda CT110 / CT90)
https://www.gumtree.com.au/s-postie+bike+wheels/k0?sort=rank $Varies SA Refurbishment costs Associated Gritblasters
10 Dunorlan Rd, Edwardstown SA 5039
(08) 8374 1979$80 per wheel SA Tyres (fitted)
3.00-17-50PDC Motorcycles
Marion Rd, Marion SA 5043
(08) 8377 5566$125 per wheel ALL 6202.2RS Conversion bearings for front wheels 35mm x 16mm x 11mm (to suit 5/8" UNF bolt as spindle) $3.45 ea Chassis ALL Your Local Steel Supplier
SA 75 x 25 x 1.6mm steel
Approx 2670mm lengths
20 Bennet Avenue
Melrose Park, SA 5039$45 ish Suspension USA Approx 550mm eye to eye by 25mm wide by 120mm drop leaf spring https://www.buggystuff.com/Seat-Spring-5327.htm
NOTE: Above link is US supplier.
NOT AU Steering ALL M8 tie rod ends x 4 NOTE: 2x RH thread and 2x LH - thread if you want to make your own tie rods you will need to buy an M8 LH tap
$20 The sources listed above are not exhaustive, nor possibly the best / cheapest, but are generally sources where members have sourced parts from and have been happy with them. Prices may of course vary, so could currently be different to those listed above.
Revision History
2019-07-03 - Updated bearing size for front hub. Correct size for using a 5/8" UNF bolt as the spindle is a 6202.2RS Bearing (35x16x11)
2019-11-04 - Added details for tyres & wheel refurbishment costsPost is under moderationStream item published successfully. Item will now be visible on your stream. -
admin updated an articleEditingTechnical
- 15th Dec, 2018
- Resources
The following list of parts is based on the recommended cyclekart specifications as defined on the cyclekarts.com page here
The basic specifications for a cyclekart are as follows
- A one-seat car using Honda 17"x 1 3/4" or 2" rims, 2.50 x 17" tires
- Wheel track 38"
- Wheelbase as close to 66" as the aesthetics of the car will allow (err on the shorter side for more abstract cuteness and general attractiveness)
- Weight no more than 250lbs
- Powered by a 200cc, single cylinder, 6.5 hp Honda OHV engine (the GX200).
- Some measurements:
- Max Length: 98"
- Max Width: 40"
- 1"X3" steel framerails (84" long in the Type 59, rear axle 10" ahead of aft end) The 1" X 3" steel stock comes in thicker and thinner walls; we use the thinner 1/16".
- Front springs 24" X 1 1/4", 2 leaf 1/2 elliptics
Some very important engineering points:
Power is transmitted via a Comet TAV-30 unit to one wheel only. Braking is also on this same rear wheel by mechanical Comet disc. NO front brakes. See the FAQ for the important reasons behind this. No rear suspension (weight gain not worth it). All of the cars have the same front and rear axle dimensions. The front axle is made up from 1 5/8" O.D. tubing, and is dropped to accommodate the leaf springs, Azusa spindles and brackets are welded on. Front axle angles are taken from an old Amilcar blueprint; they're not our own, but they work well. The steering columns and steering wheel hubs are also Azusa, lengthened to suit each car. The rear axle, drive sprocket, and hubs are also Azusa: 1" X 36" long axle, 72 tooth main sprocket, #40 chain. Front springs are buggy seat springs, half-elliptic. The fixed end has been mounted at both the front and rear ends, depending on the car. It hasn't seemed to matter which end gets the shackles. The wheels are Honda Super Cub, Passport, or Trail 90. Azusa rear wheel hubs are used on their 1" axles, and the lug bolts are ground to fit inside the Honda motorcycle hubs. New through bolts are located near the hub-reinforcing webs in the motorcycle wheels. Only one hub is keyed (the right for all our cars, and the tracks are designed with this bias in mind). Be sure to grease the freewheeling hub.
Chassis
The chassis is generally constructed from 75mm x 25mm RHS. You may be limited on what thickness you can get, I managed to find some 1.6mm thick from a local steel supplier but thinner would have been better as it would be much lighter. I'm pretty sure that you should be able to find a local supplier who either carries it or can order a length or two in.
The ideal chassis rail length as listed in the cyclekart specs is 2100mm but generally the steel comes in 8m lengths so it might pay to make your chassis 2000mm long so that you can get two cars (four rails) out of one length of steel.
Chassis rails generally taper in at the front end but this may also differ depending on your chosen design.
Wheels / Hubs
The ideal wheels are the trusty postie bike wheels as found on the CT90 and CT110. You want the 17" versions. It's worth pointing out that Postie bikes have a pretty strong following in Aus so you may find that they get snapped up pretty quickly. It also means that there are quite a few shops and wrecking yards that support them too.
The hubs that most builders in the US use are universal go-kart / ATV hubs like the ones sold by Akuza Here . The wheels are drilled to accept the bolt pattern of the hub and bolted in place with a plate on the outside to sandwich the wheel hub in between.
The rear axle has one driven wheel and one free wheel. The driven wheel is keyed to the axle whereas the free wheel is not and is simply allowed to rotate about the shaft (with the aid of a little grease)
The front wheels are mounted onto hubs that have bearings within them.
Steering / Front Axle
The front steering is a very basic go-kart style that uses a lever arm at the bottom of the steering column to operate tie-rods that turn the front spindles
The front spindles can either be made, or purchased and are mounted to a live axle suspended from cart seat springs. The size of the horse buggy seat springs is 24" X 1 1/4", 2 leaf 1/2 elliptics
The front axle is made from 40mm O.D. tubing, and is dropped in the centre to accommodate the leaf springs. This can be easily done if you have access to a pipe bender or your local exhaust shop should be able to make up a part for you.
So far I've not managed to find a source for horse buggy cart seat springs here in Aus, but golf cart springs look like they might be a suitable alternative.
Brakes
Brakes are a go-kart single disc brake fitted to the driven rear wheel / axle only (no front brakes). These are available in both cable and hydraulic versions
Additional braking is not required as the limited power and limited braking is largely what governs the speed
Drivetrain
The motor used is a 200cc, single cylinder, 6.5 hp Honda OHV engine (the GX200). There are various clones / copies of this engine available and it is commonly available as a small stationary / industrial engine in Farm equipment outlets. You can also buy them very cheaply online form China.
The motor is connected to the rear axle via a go-kart style torque converter and clutch arrangement by a chain drive. The drive ratio is 72 tooth main sprocket with a #40 chain
The torque converter arrangement commonly used is a Comet TAV-30 unit. There are various clone versions available online. You need to make sure that the unit you choose matches the output shaft size of your engine (generally 19mm or 3/4")
Bodywork
The bodywork can be made from whatever you want, in whatever fashion you feel like or are capable of making. From basic square box plywood designs to more fancy and flowing renditions of your favourite 1920's cyclecar. The choice is yours.
Generally the base of the seat extends below the chassis rails so that you sit lower in the car, this also helps to keep the centre of gravity low, which makes the car more stable. Take a look through the 'Inspiration' photo album to get some ideas. A Google search for 'cyclekarts' will also get a bunch of results too.
Happy Cyclekarting !
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Mick commented on this post about 2 years agoadmin uploaded a new videoEditing
- General
- Sunday, 16 December 2018
- 2852
Tieton Grand Prix 2015.
These are videos from the Drag Races, the Campbell Cup, and the Gordon Bennett.100000-
This is a great video for getting a feel about what cyclekarting is all about.
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admin uploaded a new videoEditing
- General
- Sunday, 16 December 2018
- 2614
The Arizona Cyclekart Club never misses an opportunity to get together and drive. This month we are hanging out at The Cyclekart Workshop.Post is under moderationStream item published successfully. Item will now be visible on your stream. -
admin uploaded a new videoEditing
- General
- Sunday, 16 December 2018
- 2571
Tom walks us around and compares the differences between four Cyclekarts. All four Karts were designed using the Stevenson Cyclekart formula. Each one is unique and expresses the builders interpretation of that formula. This is great information...Tom walks us around and compares the differences between four Cyclekarts. All four Karts were designed using the Stevenson Cyclekart formula. Each one is unique and expresses the builders interpretation of that formula. This is great information for new Cyclekart designers and buildersMorePost is under moderationStream item published successfully. Item will now be visible on your stream. -
admin uploaded a new videoEditing
- General
- Sunday, 16 December 2018
- 2659
In this video we do a quick walk around of the two CycleKarts we have built.
The "Viscount Vinson Model T Ford Special" was built in 2015.
The "Mono Wasp" was built in 2016.
Both CycleKarts are powered by the Honda GX200 and a Comet Torque...In this video we do a quick walk around of the two CycleKarts we have built.More
The "Viscount Vinson Model T Ford Special" was built in 2015.
The "Mono Wasp" was built in 2016.
Both CycleKarts are powered by the Honda GX200 and a Comet Torque Averter TAV-30. Both have a 10 tooth sprocket and a 60 tooth main sprocket and mechanical disc brakes.
If you want a pdf or a jpeg of the frame drawings or a parts list just let me know, I am happy to help anyone interested in building their own cyclekart. Thanks for watching.Post is under moderationStream item published successfully. Item will now be visible on your stream. -
admin uploaded a new videoEditing
- General
- Sunday, 16 December 2018
- 2990
24 Cyclekarts Drag race through the middle of town!Post is under moderationStream item published successfully. Item will now be visible on your stream. -
admin uploaded a new videoEditing
- General
- Sunday, 16 December 2018
- 2677
Video showing cable operated steering setupPost is under moderationStream item published successfully. Item will now be visible on your stream. -
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Welcome to the forums.
I know forums are now a bit old hat since Facebook came and took over, but trying to keep information available for others to browse and search through on Facebook is not very easy, so I decided to add a forum to the website.
The entire idea with this site and the Facebook page is just to get people connected and provide a place that newcomers can get the information that they need. First and foremost cyclekarting is supposed to be fun, and that's all we want to achieve. If we can get people building cyclekarts, and even get some events happening then I think we've had a win.
I'm really hoping people will get onboard and help to get this off of the ground.
All help and suggestions are welcomed.Post is under moderationStream item published successfully. Item will now be visible on your stream.
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