Tech Articles
General Tyre / Tire Information
General Tyre / Tire Information
More information can be found on these wikipedia pages wiki/Motorcycle_tyres and wiki/Tire_code
Tyre / Tire size
Metric Sizing
I will only list the metric sizing as it is most applicable to sport bike wheels
190/50 17 means the tire is 190mm wide on a 17-inch rim with an aspect ratio of 50. This method is called “metric,” even though the rim size is in inches. The aspect ratio is the height of the side wall and it is a percentage of the width. i.e. 190/50 is 190mm wide and has a height of 95mm (190mm X 50%). A 190/55 tyre is 190mm wide with a height of 104.5mm (190mm X 55%).
Chain dimensions
Chain Sizing
Ever wondered what the difference is between a 530 and a 520 or 525 chain is?
The numbers used in chain sizing are all in 5/8ths on an inch. The first number is the pitch (the spacing between the pin centres) and the other two are for the width of the chain.
Spark plug condition chart
Spark Plug Condition Chart
The following is a spark plug colour and condition chart showing the symptoms and explaining the cause of various spark plug conditions.
Welcome to my blog
