Well, the nose is too long, and there are other problems with the hull,

but that's a visualisation that works.

model/fourbar.scad

@@ -3,9 +3,9 @@
 // (c) Simon Brooke 2025; CC-BY-SA
 
 
-include <BentSim/Library/Bike_accessories.scad>
 include <NACAAirfoils/files/Naca4.scad>
 include <library/skew.scad>
+include <wheel.scad>
 
 module fourbar_leg(length=1000, chord=100, long_skew=30, lat_skew=30) {
     h = length * cos(lat_skew) * cos( long_skew);
@@ -47,8 +47,8 @@ module fourbar_axle_half( length, chord) {
        
     // wheel
     translate([0, length + 50, -50])
-        // Pierre Rouzeau's wheel is beautifully modelled and parameterised, but it doesn't seem to be scaled as I'd expect...
-        wheel(rim=451, spoke_nbr=32);
+        rotate([270, 0, 0])
+        wheel(iso=451);
 }