Rear Tire Sizes - measurements
Long story short, I have come to the end of my supply of weird sized old knobblies that were given to me by a collector of works mx bikes when he sold his collection (tires are removed for shipping). These tyres had kept me going for a few years. The tires from this selection that worked best on my '06 EC300 were 4.50" Metzlers, but the clearance between tire and silencer is very close. I have been offered some mitas EF-05 and mitas CO2 in 120millimetre width at a good price, but I am not sure if they will be too wide for my bike. Anyone know if they will fit ? I'm not sure if we are using metric old or new in the UK.
---------------- Gas Gas Man wrote: I must have been under a rock. There is a new tire size measurement for knobbies. The old way was knobby width. The new way is carcass width. Here's the conversion. Front: Metric Old ....................... Metric ......................... Inch 60/ 100---------------------- 90/ 80----------------- 2.50/ 2.75 70/ 100----------------------90/ 90-------------------2.75/ 3.00 80/ 100---------------------100/ 80-------------------3.00/ 3.25 Rear: Metric Old.........................Metric................ ....Inch 80/ 100-----------------------80/ 90------------2.50/ 3.60 90/ 100---------------------110/ 80-------------3.60/ 4.10 100/ 100--------------------120/ 80------------ 4.00/ 4.10 110/ 100-------------------130/ 80--------------4.00/ 4.50 120/ 100-------------------140/ 80---------------5.00/ 5.10 ------------- (mitas CO2 are hard compound, long wearing tires with large knobs, good in mud, not FIM, which I think are sold under another name outside the UK market) |
I run a 140 mx tyre on the back of mine sometimes, or a michelin comp iv 140, these will both fit and clear the silencer.
I have used 120's too, but they look a bit skinny. If you are looking for an FIM enduro tyre, the bridgestone gritty is a good all rounder. Worth checking that your tail pipe isn't bent in towards the wheel, mine was:o |
Resolved the problem - the previous owner had removed / lost the spacers for the silencer and bent the pipe to fit without. Fixed now and could accept a 140 no problem
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