Forum Discussion
SoundGuy
Dec 06, 2018Explorer
Ralph Cramden wrote:
A tire is not going to contract enough when cooling down to loosen an X chock unless the person installing it's IQ was less than the X chocks IQ. That's a stretch of a comment, physics or not. How much does one contract? 1/10000 of an inch?
Your feeble attempt to insult another forum member just because you don't agree with the point being made doesn't change the FACT that trailer tires do shrink noticeably as they cool. I know that to be FACT because my own X-Chocks installed when the tires are hot do loosen to the point where they will fall out of position if not periodically retightened as they cool. I've measured this contraction at ground level where my BAL Single Tire Locking Chocks sit between the tires of our precious K-Z Spree to be as much as a 1/4". When we bought our most recent travel trailer I discovered that the axle spread of just 29" provided insufficient space between the 14" tires to reliably insert the BAL locking chocks so I came up with another solution. That solution was a pair of rubber chocks between each set of adjacent tires, using hardwood spacers of varying widths to ensure each chock snugged against it's respective tire.
However, since the tires shrink as they cook that meant I had to make up a SET of hardwood spacers of varying widths as those inserted when we first set up would have to be replaced with wider spacers as the tires cooled.
Had I been able to continue using the adjustable BAL locking chock I would have because expanding it as the tires cool was a simple matter of periodically giving the adjusting screw a couple of turns ... I couldn't so this rubber chock / spacer system was the next best solution. Norco's warning isn't a CYA, it's a reminder of the FACT that physics does play a part here ... there's no way around it, X-Chocks are not designed for or intended to be used to actually chock the trailer and secure it from inadvertently rolling away. For sure, it's your personal choice if you want to ignore this advice but that doesn't change the FACTS of the matter.
About Travel Trailer Group
44,029 PostsLatest Activity: Jan 21, 2025