Knowledge Centre
Guides on how to specify a tyre and how to import one, written for buyers rather than for search engines. No performance claims, because an honest one depends on conditions we cannot see.
How to Read a Tyre Sidewall Marking
What 315/80R22.5 156/150K actually means, and the three checks to make on a size table before you order
Read it Buying GuideTBR vs TBB Choosing Radial or Bias Truck Tyres
Radial versus bias truck tyres, decided on road surface speed and whether a retread market exists
Read it Product GuideOTR Tyre Codes E L G and What They Mean
What E-3, L-3, L-5 and the rest of the TRA service codes tell you about an OTR tyre
Read it Buying GuideChoosing Agricultural Tyres for Field and Road Work
R-1, R-1W and R-2 classes, compaction, radial versus bias, and ordering ahead of the season
Read it Product GuideSteer Drive and Trailer Choosing by Axle Position
Why steer drive and trailer tyres are different, and what breaks when the wrong one is fitted
Read it Buying GuideHow Many Tyres Fit in a Shipping Container
Why truck tyres weigh out and passenger tyres cube out, and what that means for a mixed order
Read it Maintenance GuideInflation Pressure and Casing Life
Pressure carries the load, not the tyre, and what under and over inflation each cost you
Read it Compliance GuideWinter Tyre Markings M+S 3PMSF and What Regulations Require
M+S is a shape, 3PMSF is a test, and only one of them usually satisfies a winter regulation
Read it Buying GuideImporting Tyres Documents Markings and Common Delays
The four documents that travel with a container, and why mismatches cause more delay than logistics
Read it Buying GuideBuilding a Tyre Range for a New Market
Start from the vehicle park, buy depth in the sizes that turn, and let the second order correct the first
Read itAbout These Guides
Who writes these guides?
We do. They cover general tyre engineering and trade practice rather than product marketing, which is why they do not end with a claim that our tyres solve everything.
Why are there no performance figures in them?
Because an honest tyre life or fuel saving figure depends on your road surface, load, speed and maintenance. A number quoted without those conditions is marketing, not information.
Can I use these to train counter staff?
Yes, and several distributors do. If you want a specific topic covered that is not here, tell us.
Where do I find manufacturer specification data?
Every product page carries the full manufacturer size table, and the downloads page has twelve full catalogue PDFs with no form to fill in.
Can I ask a question not answered here?
Yes. Email us with the vehicle, the duty and the sizes and you will get a technical answer rather than a price list.
Do you publish these anywhere else?
No. They exist to help buyers choose correctly, which is worth more to us than reach.
Ask Something These Guides Do Not Cover
Send the vehicle, the duty cycle and the sizes. A technical question gets a technical answer.