Science of Tyres
rob39
Posts: 479
Hi all
After much research I've wittled a tyre choice down to Maxxis High rollers/ignitors or crossmark as these appear to suit the conditions I ride on (forest hard pack, 7stanes), but can someone explain the differance between 70a and 60a, dual ply/single ply and what to look for in a tread pattern and should there be a differance between front and rear treads??
After much research I've wittled a tyre choice down to Maxxis High rollers/ignitors or crossmark as these appear to suit the conditions I ride on (forest hard pack, 7stanes), but can someone explain the differance between 70a and 60a, dual ply/single ply and what to look for in a tread pattern and should there be a differance between front and rear treads??
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Comments
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how sticky.
how heavy.
it depends on the conditions.
there can be.
most makers web sites cover all this info if they use it.
see Maxxis and Schwalbes sites."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
70a/60a is often referred to as shore hardness it's a measure of how soft/hard the tyre rubber is. The softer the tyre the slower it rolls and the more it grips, the harder the tyre the faster it rolls but has less grip.
Low numbers like 40a mean very soft, high numbers like 70a mean very hard.
Double plys have thicker carcasses and are designed for heavy duty use, they are less prone to pinch flats and punctures as a result they typically weigh in excess of 1kg+ and are only really suitable for downhill/ gravity assisted riding..
Single plys are more suited to everyday trail riding this is due to there lighter casing typically 500-700grams.0
