Why do lorries have raised wheels

In this scenario optimized for easy math, your dumper bucket can hold cubic feet of whatever. Now you can bear 50, pounds, and the iron can be taken to wherever it needs to go.

Once you dump it, you can retract your drop axles to save on tire wear, fuel, and toll bills. And most importantly, the truck will be much easier to drive with fewer wheels on the road. Hope you had fun trucking with us, or at least learned something today. The A. Truck Yeah. By Andrew P.

You can follow any responses to this entry through the RSS 2. Both comments and pings are currently closed. Winder, GA Sales: Service: Call Menu. Share Tweet Pin. The extra exles is their to either run the vehicle at higher weights, to spread the load or to reduce road tax rates Grip is better with the axle in its up position at least that was the case when my father used to run trucks a few years ago Reply Report as offensive Link.

Thu 6 Jan another lorry question. Sort of on topic, another truck question: why do trucks park in laybys at night with one door open at the back? See this all the time. Mystified me for a long while.

Normally empty - to convince our light fingered friends that there was no point in breaking in Reply Report as offensive Link.

Thanks PU. To show they have nothing worth stealing, it saves them having the curtains cut, cargo area broken into or their doors being left unsecured should someone take a look Reply Report as offensive Link. Thu 6 Jan lorry wheels in the air - Imagos.

Sorry Smokie, i hijacked your thread! Just tried a google but couldn't find anything. Hopefully a trucker will be along shortly to reveal all! Thu 6 Jan lorry wheels in the air - bonfire. Can you not see my post imagos? Fri 7 Jan lorry wheels in the air - Rob C. Another hijack! Why do trucks have sticky-out front wheel hubs while all the other wheels have inset rims? Why do passenger jets have headlights beaming out whilst flying?

It's not like they're going to come up behind another jet quickly. Fri 7 Jan lorry wheels in the air - Bromptonaut. In controlled airspace all should be under observation and managment by ATC but even then mistakes are made. Fri 7 Jan another lorry question. So does that therefore infer that if one of the doors is not open then it definitely has stock aboard! Makes it easier for the thief? Sat 8 Jan another lorry question.

I think it is safe to infer that if it has stock aboard then no doors will be open 8- Reply Report as offensive Link. Fri 7 Jan Lorry wheels in the air - Avant. Sticky-out front hubs - that used to be for the driver to step on when climbing into the cab. Perhaps just a tradition now that most have steps? Jets with lights on - that'll be the Swedish airline. Fri 7 Jan Lorry wheels in the air - PatrickO. Sticky out hubs are if you only have one wheel or tyre on the axle.

Sticky in hubs are if there are two wheels or tyres on the axle. I think. Fri 7 Jan Lorry wheels in the air - smokie. Thanks for the replies guys It must be more than coincidence, but in yesterday's survey the raised wheels always had sticky out hubs whereas those on the ground were sticky in I guess Patrick's reply is sensible, in that the "optional" axle has two wheels only. Fri 7 Jan Lorry wheels in the air - Cliff Pope.

When I read the original post I assumed "spare wheel" meant spare wheel. I have often noticed that lorry spare wheels are bolted horizontally hanging underneath a bracket. Do they use a jack to lift it into position, or are lorry drivers phenomenally strong? Try lifting a car wheel at arm's length! Fri 7 Jan Spare wheel - bonfire. The spare wheel is on a pulley that you wind down using the wheel brace. However it is rare for lorries to carry spare wheels Reply Report as offensive Link. Fri 7 Jan Lorry wheels in the air - klystron.

Patrick, Smokie, I think we are getting there. The way I see it is that the sticky out bit on the wheel is so that on a twin wheeled set up you need to mate two similar sticky out wheels 'back to back' to give you the required space between the wheels.