Blokart chassis- Stainless or Chromoly? Plus Intro

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BenBoulder
BenBoulder
WA
261 posts
WA, 261 posts
21 Dec 2012 11:14pm
Hello fellow blokart sailors would like to know what chassis most people are sailing and the pro and cons of each model.

I am looking at purchasing a blokart within the next couple of weeks and would like to know from owners what that think of their current chassis' with regards to:

- Performance: _is there any real difference or is it just psychological?
_What about chassis rigidity and strength?
_Weight?
_What are the top guys and girls racing?


-Maintenance/Repairs:_How do you maintain yours?
_Would there be any difference in the repairs of each material?

-Aesthetics: _Which one looks the best? Can the Chromoly frame be painted/powder coated?

-Resale:_ Which chasis will hold its value come time to sell?


I am still undecided as to which model will suit my needs.

I went for a test sail on a carpark with Bryan the Kalgoorlie Blokart dealer on his kart that had all the fruit and was hooked.

I plan to race in the production class initially as this is what my current budget will allow with the intent to move into the performance class and spending my money on:

1. Carbon Mast
2. POD
3. Ratchet Pulley and 6:1 Cunningham
4. Batten tensioners

I intend to sail at various locations including Lake Lefroy and blasting along the beach at Esperance.

I am a heavier sailor in the 80kg weight range and love to sail fast. I have a windsurfing and sailing background as I grew up sailing on the beautiful lake Cootharba and Noosa River. Now I am living and working in the Goldfields and there is no water so Blokarts are the next best thing.

I am leaning towards the Chromoly comp model because:
-Price: Its $600 Cheaper
-Strength: They make tools and Mountain Bikes from Chromoly however that don't ride them on the beach or salt lakes.

My biggest concern is the the corrosion. I don't my expensive toy eaten away, weakened or looking crap after 12months of use. Warranty/Built in obsolesces.

Sorry for the big spiel but I am honest to hear everyones feedback.



sn
sn
WA
2775 posts
sn sn
WA, 2775 posts
22 Dec 2012 4:48pm
Gidday Ben,
I am not a blowie driver- I have lefroy mini's, but I would imagine that if you will be around salt lakes or salt water stainless steel would be the way to go, along with a good wash down and squirt all bearings, bolts, clips etc with inox each time you finish sailing.

as for your weight, at 80kg that puts you firmly in the featherweight class compared to a lot of the mob I see in landyachts

stephen.
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
23 Dec 2012 9:26am
If you using it frequently and plan to faff with it between sails then youll be fine with the CM chassis, but if you plan to sail and rinse.sail and rinse, then maybe a stainless one is the way. my salt lake can be really corrosive, but with maintainence you will be fine
djb
djb
QLD
174 posts
djb djb
QLD, 174 posts
23 Dec 2012 12:16pm
We started with powder coated karts and washed them after every day out and sprayed with WD40 or similar. Lanolin was good but became messy. Easy to do without a pod. If you are looking at a pod, go stainless as most of us tend to leave the pod on and the keel tube doesn't get rinsed unless pulled right out. With a non stainless kart, the keel tube is the main part to rust if not washed regularly.
The chassis's all weigh about the same.
Performance wise, the chassis type does not seem to make any difference.
Maintenance wise, run a spanner over the bolts occasionally and pump the tyres up. Tyre pressure is critical. The rims are rated at 30psi and will distort if over inflated. Socially, I run around 30psi and race days, 32-35psi in the rear and less in the front. Some run much higher pressure and increase the risk of a blowout.
Don't wash the sail unnecessarily as they have a coating on them to water proof them. If they get wet, hang them up to dry so they don't get mildew on them.
I run steel bearings straight out of the box and do not clean the grease out. When they are too worn or seized, I put another set in (eventually!). The karts come with stainless bearings which are a bit dearer and don't seem to have any advantage.
Repair wise, any of the chassis types can be welded if required.
Chrome moly karts have a stainless floor and seat hoop. The full stainless is all shiny and look better. Once you put a pod on they all look the same.
Blokarts can be ordered with either fibre glass or carbon fibre masts or a combination. The strongest sections must go on the bottom. If you go carbon straight up you move to performance in competition but you don't get stuck with a $400 mast that you may not use. It is about $300 extra to buy ultra carbon straight up.
When buying a ratchet pulley, go for the 57mm (Harken or Ronstan) as they give a lot better gain and will last longer. Blokart have a 32mm.
The new sail bungee straps can be tied shorter to tighten the tension if required. I find the standard straps adequate.
Both blokarts hold their value well.
We run stainless chassis now with full ultra and a carbon second and crane. In hind site, it would have been better to start with the best as you only buy it once.
Check out Perth Blokart Club if you are planning to race. Their site is: www.perthblokartclub.com.au/
They have their state titles soon.
Red sails
Red sails
QLD
57 posts
QLD, 57 posts
23 Dec 2012 12:21pm
G'day Ben, welcome to the Blokart fraternity (when you get one that is).
You are very lucky to be getting interested in Blokarts right now with the announcement of the World titles in your own backyard (Perth) in 2014 with the Australian Open also in the same spot a week earlier. That's a big coo for the Perth Club and Australia as a whole.

I have been involved in Blokarts since 2007, forming the Brisbane Blokart Club and was President of the South East Qld Blokart Qld and now we are known as the Central Qld Blokart Club - Brisbane Division.

I'm sure you are already convinced that a Blokart will be your choice of landyacht if you are serious about competion racing as there are much more opportunies and people sailing in Blokarts than any other landyacht in Australia and South East Asia and are a proven superior landyacht than the home made jobbies.

You really can't go too wrong with any of the Blokart products, it's a case of how much money and time you have to spend on your race machine.

Pre '08 models (black vinyl seat) were the strongest models with the steel chassis being a little prone to rusting without proper care, the SS chassis is still one of the best around.

Post '08 models (silver vinyl seat) were lighter but not stronger and were replaced in '10 (silver vinyl seat longer seat shorter pan) with the Composite and a new SS material and added mast post strengthener. Beware the mast post is also narrower.

I had a '06 SS for 3 years, then bought a '08 steel till the '10 SS was released and am currently racing that in Production class.

Your 80kg will put you into the middle weight catergory, and all things being equal how fast you go is only up to your personal skills, don't be surprised if you get hammered by one of the more seasoned ladies or kids racing.

There is endless info here on Seabreeze and other Blokart websites that can answer your every question.

You can save on buying a second hand SS but worh the dollars buying post '10 sails with finger battons as standard, they are better. Again it's your wallet, spend wisely and be mindful of the race rules for your chosen class as some of the hotups are not allowed in Production racing.

Have a look at the video I put together for 2012 Australian Open and you'll see what kind of fun and friendships you can have with us.

Hope this is helpful and good luck with your Blokart experience.
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
24 Dec 2012 12:39am
An irrefutable matter of fact is that weight for weight chrome moly steel is less bendable than stainless steel. Any mechanical engineer will confirm that.

That is why automotive suspension is not made from stainless steel, because it ain't got no SPRING in it.

The kart chassis is your suspension. A stainless chassis will bend and stay bent. A chrome moly chassis will bend and return to it's original.

Ask Phil Coulter how many Pro kart chassis' he has had to replace on warranty due to bending compared to Sport chassis' replaced due to bending.

He had to replace two for me.

If you are lazy and don't want to do maintenance, buy a Pro kart. (Profile of a so called professional person who is doing the sport for recreation only.)

If you love your kart and are prepared to be fastidious with maintenance and want to win races, buy a Sport kart. (Profile of real professional who is passionate about his chosen sport and prepared to do what it takes to win.)

I bet half you guys with stainless karts, if you are sailing hard, have bent chassis'. I also bet that before long all blokarts will have base frames and mast tubes of high grade steel rather than stainless.
Westernstar
Westernstar
11 posts
11 posts
24 Dec 2012 7:09pm
Cisco , you have a lot of knowledge , but a big lack of experience , you don't appear to have ever sailed in any event ?
BenBoulder
BenBoulder
WA
261 posts
WA, 261 posts
24 Dec 2012 10:29pm
Thank you for everyone's feedback. I have finally made my purchase with help from Bryan at Kalgoorlie Blokarts.
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
25 Dec 2012 1:32pm
Westernstar said...
Cisco , you have a lot of knowledge , but a big lack of experience , you don't appear to have ever sailed in any event ?


I am not interested in racing. FUN, FAST, COMPACT does it for me.
BenBoulder
BenBoulder
WA
261 posts
WA, 261 posts
25 Dec 2012 9:40pm
I decided to get the chromoly chassis for its strength.

My main attraction to the Blokart was one-design racing. There are definitely positives and negatives with one design racing. The most appealing thing of the Blokart is the skill of the sailor that wins races rather than bloke that BUYS the latest and best gear re: chequebook racing.

My main criticism of the Blokart is the cost of sails compared to windsurfing you have a competition in the market and you can buy some awesome sails that are competitively priced. Blokart owns the game and its there rules.

If I was interested in blasting along doing whatever I would have went to Bunnings and bought the parts and made one myself. Portability is not an issues as I got the full length tray of the ute and a dual axle box trailer. Endless reaches don't interest me unless when you a windsurfing and you can add some jumps, sprays, nice carve gybes or racing your mates.

Another bonus was that the 2014 Worlds were announced in Perth.

Ben.
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
26 Dec 2012 11:12am
Westernstar said...
Cisco , you have a lot of knowledge , but a big lack of experience , you don't appear to have ever sailed in any event ?

i think you might find tha cisco retired from racing etc way back before many people had even heard of blokarts.
he certaianly can set one up for racing.


ive got a first place trophy siting at the back of the bookcase from racing one of his yachts
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
26 Dec 2012 11:27pm
BenBoulder said...
I decided to get the chromoly chassis for its strength.


Congratulations Ben. Shiny might be sexy but strong is supreme. Good decision.

daisygirl
daisygirl
QLD
109 posts
QLD, 109 posts
31 Dec 2012 6:20pm
I agree that the stainless bend having bought both new and several second hand and they were all bent. Probably not enough to notice with the eye but place them on a flat service such as a concrete floor and very noticeable.

I race an older steel model in production and my husband has one of the first chrome olly that came out and he races in performance class and happy with both models. Yes, you do have to wash well after being on the beach but I accidently took mine swimming at the beach just after I got it and still going strong (including a second placing at Hillsborough this year). I dont like the full stainless because they bounce so much when going along the beach that I end up getting seasick!
djb
djb
QLD
174 posts
djb djb
QLD, 174 posts
31 Dec 2012 6:36pm
My three are stainless and get used well, socially and in competition. They don't get abused. They are all silver seat models. Barak has had his stainless black seat kart for a few more years than me and his has given him thousands of km's and hours of use. The early mast pole on mine had a small crack which we noticed early enough and fitted welded plates like the new ones.
We have had no major dramas.
If you look after and maintain any of them, they will give you many years of fun.
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