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Home  >  Motorcycle tyres  >  90 / 90 21
Tyre size:
What tyre size do you require?
The exact size of a tyre can be found on its sidewall.
The following chart shows you how to read a tyre size.
1. Overall tire width in mm
2. Ratio of tire height to tire width in%
3. Tire design: ''R'' = radial tires (widely used), ''D'' or ''-'' = diagonal tires (rare)
4. Required rim diameter for this tire in inches
5. Key figure for tire load capacity
6. Key figure for the permissible maximum speed (speed index)
7. Motorcycle tire identification, tires only approved for motorcycles
8. DOT labeling
9. Date of manufacture of the tire (week of production / year of production)
 
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SPEED INDEX:
The speed index indicates the maximum speed intended for the tyre. Up to this value, the manufacturer guarantees optimum operation with the appropriate tyre pressure. The maximum speed allowed for this vehicle is given in the vehicle owner's manual; this information can be used to select the appropriate speed index for the tyre. The speed index is the last mark on the sidewall of the tyre.
 

Our offer for   90/90  21     

search by size: 5 Results

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Prices include VAT and delivery within Ireland

Mitas Enduro Trail E-07+
Mitas
Mitas
Enduro Trail E-07+
90/90 B21 54T TT/TL Front wheel

Tyre type

Enduro

TT = This tyre needs a tube

available
just  € 115.57
available
Details
Mitas Enduro Trail
Mitas
Mitas
Enduro Trail
90/90 B21 54H TT/TL Front wheel

Tyre type

Enduro

TT = This tyre needs a tube

limited stock
just  € 123.15
limited stock
Details
Kenda K784 Big Block Front
Kenda
Kenda
K784 Big Block Front
90/90 B21 54T 4PR TL

Tyre type

Enduro

limited stock
just  € 126.28
limited stock
Details
Mitas Enduro Trail +
Mitas
Mitas
Enduro Trail +
90/90 B21 54H TT/TL Front wheel

Tyre type

Enduro

TT = This tyre needs a tube

limited stock
just  € 131.60
limited stock
Details
Mitas Enduro Trail XT+
Mitas
Mitas
Enduro Trail XT+
90/90 B21 54T TT/TL Front wheel

Tyre type

Enduro

TT = This tyre needs a tube

available
just  € 146.17
available
Details
There are 5 of 5 tyres displayed
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Prices include VAT and delivery within Ireland.

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