Rims, Tyres and Tubes

Some basic information on rims, tyre and tube sizes for the GS, Dakar and Sertao
 

GS and Dakar Rim Sizes
Front - GS - 2.50 x 19
Dakar - 1.60 x 21
Rear - 3.00 x 17
G650GS Rim Sizes
Front - GS - 2.50 x 19
  
Rear - 3.25 x 17
Sertao Rim Sizes
  
Sertao - 1.60 x 21
Rear - 3.00 x 17

Front Tyre Sizes and Conversions
Metric
60/100
70/100
80/100
Alpha
90/80
90/90
100/80
Inch
2.5/2.75
2.75/3.00
3.00/3.25
Rear Tyre Sizes and Conversions
Metric
100/100
110/100
120/100
Alpha
120/80
130/80
140/80
Inch
4.00/4.10
4.00/4.50
5.00/5.10

Front Tyre Size to Rim Size
Tyre
90/90 - 19
80/90 - 21
90/90 - 21
Rim
1.85, 2.15, 2.50
1.60, 1.85, 2.15
1.85, 2.15, 2.50
Rear Tyre Size to Rim Size
Tyre
120/90 - 17
130/80 - 17
140/80 - 17
Rim
2.50, 2.75, 3.00
2.50, 2.75, 3.00, 3.50
2.75, 3.00, 3.50, 3.75
Notes.
The sizes above are a general guide only for enduro tyres, always check the manufacturer recommendations before fitting any tyres. Here is a tyre rim size chart pdf       Rim Size pdf

Dakar and Sertao Tyres

There was discussion of what tyres were available from manufacturers for the Dakar. The list here covers the standard tyre diameter and sizes. It has some basic info on studs. The list is a good one to build on.

The Don Coyote definitve tyre list, E and O E as always folks.

Heavy Duty Tubes

The tubes sold as "heavy Duty" are variable in both the thickness of the tube and the materials used to the point it is very difficult to compare brands. The only thing which can be said is to check specifications and choose carefully.

A pdf with manufacturer information on tubes is available for download

Many people have contributed to collecting the manufacturer information in the pdf and spreadsheet.

If you have further confirmed specifications contact me and I will add the information to the files.