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Public-images-osm logo.svg mtb:scale:imba
Osm element key.svg
A classification scheme for the difficulty of trails for mountainbiking, with artificial obstacles. Edit or translate this description.
Group: Properties
Used on these elements
may be used on nodesmay be used on waysshould not be used on areasmay be used on relations
Useful combination
Status: approvedPage for proposal

The Trail Difficulty Rating System shall be used for bikeparks, this applies for instance to North Shore. It is adapted to MTB trails with artificial obstacles. For "natural" trails it is advised to use mtb:scale=* and mtb:scale:uphill=*.

mtb:scale:imba=0 to 4.
0 refers to Easiest (white circle), 1 is Easy (green circle), 2 is More Difficult (blue square), 3 is Very Difficult (black diamond), and 4 is Extremely Difficult (double black diamond).
Imba trail difficulty.jpg

Graphics reused with permission from IMBA. Updated original found here.