diff --git a/routing_common/bicycle_model.cpp b/routing_common/bicycle_model.cpp
index 3b19b4f75a..b292ef83a0 100644
--- a/routing_common/bicycle_model.cpp
+++ b/routing_common/bicycle_model.cpp
@@ -172,6 +172,9 @@ VehicleModel::SurfaceInitList const kBicycleSurface = {
   {{"psurface", "paved_bad"}, {0.8, 0.8}},
   {{"psurface", "unpaved_good"}, {1.0, 1.0}},
   {{"psurface", "unpaved_bad"}, {0.3, 0.3}},
+  {{"_mtb_rating", "intermediate"}, {0.3, 0.3}}, // similar to unpaved_bad
+  {{"_mtb_rating", "difficult"}, {0.1, 0.1}}, 
+  {{"_mtb_rating", "expert"}, {0.05, 0.05}},
   // no dedicated cycleway, doesn't mean that bicycle is not allowed, just lower weight
   {{"hwtag", "nocycleway"}, {0.8, 0.8}},
 };