diff --git a/src/colliders.rs b/src/colliders.rs
index c5abe93..263d460 100644
--- a/src/colliders.rs
+++ b/src/colliders.rs
@@ -91,13 +91,13 @@ fn setup_bike_collider(bike: Entity, xform: &Transform, commands: &mut Commands)
     bbody.position = isometry.into();
     // collider
     let shape = ColliderShape::capsule(
-        Vec3::new(0.0, 0.0, -5.25).into(),
-        Vec3::new(0.0, 0.0, 5.25).into(),
-        5.2,
+        Vec3::new(0.0, 0.0, -2.7).into(),
+        Vec3::new(0.0, 0.0, 2.0).into(),
+        1.0,
     );
     let bcollide = ColliderBundle {
         shape: shape.into(),
-        mass_properties: ColliderMassProps::Density(0.6).into(),
+        mass_properties: ColliderMassProps::Density(0.04).into(),
         material: ColliderMaterial {
             friction: 0.0,
             restitution: 0.0,