Hobie trax cart failure

From ElementA1 "Do you think that this homemade cart made from Sched 40 Pvc will hold up to 57.5 lbs of 50% of the AI? Has anyone else built one?"

Yes - I built mine out of sch40 PVC and used wheels from a thrift shop golf bag carrier. It works great carrying my 62 lb Outback plus all my fishing gear - even over rough terrain. Cost me a total of about $10.

To further what Clermont said, the home made $20 cart I posted in this thread has a galvanized axle and much stronger tires that will handle more weight than the Hobie Trax with its wheeleez brand wheels.

Soooo....you're really not going to admit that the failure of the Trax cart was your own fault?

Sweet!! Off to harbor Freight I go for some Wheels and I get to building a cart.

_________________
2010 Hibiscus Adventure Island

Greetings all... 1st post.... Rented a Revo last Sat... When I got back to the dealer I bought one of my own... Dealer did not have a Sand color in stock so it looks like another week or so before it's here. Looked at the stock cart hanging on the wall and was not impressed with the price tag or the quality of the cart but was ready to bite the bullet. So I have read this post with great interest! Googled up Harbor Freight and found one less then a mile from my home. The only part I could not decipher from the various post was the length of the axle. Can you help out on that please... thanks in advance...Art

_________________
Catching fish is a bonus...but getting out there is enough...

G'Day and welcome Art,
The Trax axle measures 56cm while my original homemade cart using the axle from a cheap trolley measures 50cm. The extra width makes for a noticeable stability improvement.

Thanks for that suggestion RR but I'm a bit reluctant to bore through the deck. The scuppers look very strong and seem to end in a double thickness of plastic. They show little signs of wear after a year of solid carting (since I got the AI the Oasis isn't used weekly as it used to be .)
I use the cart I specifically made to fit it and the weight is borne equally by the scupper top and the hull. The reason I wished the scuppers went right through is that it would be easier when fitting the cart underwater. It's much easier on the AI because you can see where the cart is when looking down the scupper tube.
PS -I fitted some eyebolts to the trax cart today and it does make it easier if the cart is attached when unloading the AI from the trailer. I am modifying my trailer so that I can carry both AI's. Thanks again for that idea!

Got the tires... Who said tires ain't pretty? They did not carry any axels... suggestions?

_________________
Catching fish is a bonus...but getting out there is enough...

Get some 1/2" galvanized steel rod. The exact length doesn't matter. You will make your adjustments with the pvc pipe, because that is what inserts in the scupper holes of your kayak. You can make the axle as wide as you want. I would make it wide enough so it will be stable under the kayak. Use this picture as a reference.

1/2 inch galvanized rod - sounds great - should be really solid. However, much too high tech for me. I built the wheel frame out of PVC with a piece of 1 1/2 inch tubing for the axel. Then turned a wooden plug to fit in each end of the axel part and mounted the wheels with 1/2 " galvanized lag bolts. Quick, easy, and very cheap.

As Jorhyne says 2-3 psi isn`t measurable with householdgauges (except the Barometer to predict the weather may come close)

If you use a Bar/PSI converter like http://www.google.nl/url?q=http://www.h ... tvny31TxyQ
there is a significant difference in maximum pressure between the 2 scales


So a loaded yak (esp. the A1) swaying around on the cart on a hot day easily excerts the limits, certainly when the wheels just came out of the trunk of the car. (temp range -5C to 38C , 23-100F)

So in short,

There is a discrepancy between the maximum pressures in PSI and Bar

It is very likely that the maximum load of these tires is exceeded when they are used on hot days with the heavier kayak models

This is a revised version of my original posting as I wasn`t correct about the pressures on the sidewall

PF

_________________
hobie Quest

Peddlefisher,
These tyres are specifically designed by Wheeleze to only be inflated to 2-3psi. Over-inflating voids the warranty and results in tyre deformation. If you go to their website all their sand tyres are designed to run at similar pressures.
Some have posted about running slightly higher pressures by a few psi but over-inflating the balloon tyres by 10x will destroy them -IMHO.
Jorhyne's initial post at the start of this thread about accidental over-inflation ruining his tyre backs this up. Others have reported similar results. NOT RECOMMENDED.
I do agree with you about exceeding the load limit. The rigged AI is very close to the max capacity of these tyres which means you can't really carry any of your extra gear. In fact if you are using it on uneven ground the rocking of the AI onto one tyre is exceeding the tyre capacity. I'm sure this is what caused the problems I had a while ago with one tyre deflating but not punctured.
Hobie should consider a larger balloon tyre for the AI.